Merge branch 'develop' into main

.github/workflows/check.yml

@@ -14,8 +14,8 @@ jobs:
     steps:
       - uses: subosito/flutter-action@v1
         with:
-          channel: stable
-          flutter-version: '1.22.6'
+          channel: dev
+          flutter-version: '2.1.0-12.1.pre'
 
       - name: Clone the repository.
         uses: actions/checkout@v2

.github/workflows/release.yml

@@ -16,8 +16,8 @@ jobs:
 
       - uses: subosito/flutter-action@v1
         with:
-          channel: stable
-          flutter-version: '1.22.6'
+          channel: dev
+          flutter-version: '2.1.0-12.1.pre'
 
       # Workaround for this Android Gradle Plugin issue (supposedly fixed in AGP 4.1):
       # https://issuetracker.google.com/issues/144111441
@@ -50,8 +50,8 @@ jobs:
           echo "${{ secrets.KEY_JKS }}" > release.keystore.asc
           gpg -d --passphrase "${{ secrets.KEY_JKS_PASSPHRASE }}" --batch release.keystore.asc > $AVES_STORE_FILE
           rm release.keystore.asc
-          flutter build apk --bundle-sksl-path shaders_1.22.6.sksl.json
-          flutter build appbundle --bundle-sksl-path shaders_1.22.6.sksl.json
+          flutter build apk --bundle-sksl-path shaders_2.1.0-12.1.pre.sksl.json
+          flutter build appbundle --bundle-sksl-path shaders_2.1.0-12.1.pre.sksl.json
           rm $AVES_STORE_FILE
         env:
           AVES_STORE_FILE: ${{ github.workspace }}/key.jks

CHANGELOG.md

@@ -3,6 +3,17 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [v1.3.6] - 2021-03-18
+### Added
+- Korean translation
+- cover selection for albums / countries / tags
+
+### Changed
+- Upgraded Flutter to dev v2.1.0-12.1.pre
+
+### Fixed
+- various TIFF decoding fixes
+
 ## [v1.3.5] - 2021-02-26
 ### Added
 - support Android KitKat, Lollipop & Marshmallow (API 19 ~ 23)

README.md

@@ -8,7 +8,7 @@
 
 Aves is a gallery and metadata explorer app. It is built for Android, with Flutter.
 
-<img src="https://raw.githubusercontent.com/deckerst/aves/develop/extra/play/screenshots%20v1.2.1/S10/1-S10-collection.png" alt='Collection screenshot' height="400" /><img src="https://raw.githubusercontent.com/deckerst/aves/develop/extra/play/screenshots%20v1.2.1/S10/2-S10-image.png" alt='Image screenshot' height="400" /><img src="https://raw.githubusercontent.com/deckerst/aves/develop/extra/play/screenshots%20v1.2.1/S10/5-S10-stats.png" alt='Stats screenshot' height="400" />
+<img src="https://raw.githubusercontent.com/deckerst/aves_extra/main/screenshots/S10/1-S10-collection.png" alt='Collection screenshot' height="400" /><img src="https://raw.githubusercontent.com/deckerst/aves_extra/main/screenshots/S10/2-S10-viewer.png" alt='Image screenshot' height="400" /><img src="https://raw.githubusercontent.com/deckerst/aves_extra/main/screenshots/S10/5-S10-stats.png" alt='Stats screenshot' height="400" />
 
 ## Features
 

android/app/build.gradle

@@ -104,11 +104,11 @@ repositories {
 
 dependencies {
     implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.9'
-    implementation 'androidx.core:core-ktx:1.5.0-beta01' // v1.5.0-alpha02+ for ShortcutManagerCompat.setDynamicShortcuts
+    implementation 'androidx.core:core-ktx:1.5.0-beta03' // v1.5.0-alpha02+ for ShortcutManagerCompat.setDynamicShortcuts
     implementation 'androidx.exifinterface:exifinterface:1.3.2'
     implementation 'com.commonsware.cwac:document:0.4.1'
     implementation 'com.drewnoakes:metadata-extractor:2.15.0'
-    implementation 'com.github.deckerst:Android-TiffBitmapFactory:f87db4305d' // forked, built by JitPack
+    implementation 'com.github.deckerst:Android-TiffBitmapFactory:876e53870a' // forked, built by JitPack
     implementation 'com.github.bumptech.glide:glide:4.12.0'
 
     kapt 'androidx.annotation:annotation:1.1.0'

android/app/src/debug/res/values-ko/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<resources>
+	<string name="app_name">아베스 [Debug]</string>
+</resources>

android/app/src/main/kotlin/deckers/thibault/aves/MainActivity.kt

@@ -34,6 +34,7 @@ class MainActivity : FlutterActivity() {
         MethodChannel(messenger, AppShortcutHandler.CHANNEL).setMethodCallHandler(AppShortcutHandler(this))
         MethodChannel(messenger, DebugHandler.CHANNEL).setMethodCallHandler(DebugHandler(this))
         MethodChannel(messenger, ImageFileHandler.CHANNEL).setMethodCallHandler(ImageFileHandler(this))
+        MethodChannel(messenger, GeocodingHandler.CHANNEL).setMethodCallHandler(GeocodingHandler(this))
         MethodChannel(messenger, MediaStoreHandler.CHANNEL).setMethodCallHandler(MediaStoreHandler(this))
         MethodChannel(messenger, MetadataHandler.CHANNEL).setMethodCallHandler(MetadataHandler(this))
         MethodChannel(messenger, StorageHandler.CHANNEL).setMethodCallHandler(StorageHandler(this))

android/app/src/main/kotlin/deckers/thibault/aves/channel/calls/GeocodingHandler.kt

@@ -0,0 +1,82 @@
+package deckers.thibault.aves.channel.calls
+
+import android.content.Context
+import android.location.Geocoder
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+import io.flutter.plugin.common.MethodChannel.MethodCallHandler
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
+import java.util.*
+
+// as of 2021/03/10, geocoding packages exist but:
+// - `geocoder` is unmaintained
+// - `geocoding` method does not return `addressLine` (v2.0.0)
+class GeocodingHandler(private val context: Context) : MethodCallHandler {
+    private var geocoder: Geocoder? = null
+
+    override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
+        when (call.method) {
+            "getAddress" -> GlobalScope.launch(Dispatchers.IO) { Coresult.safe(call, result, ::getAddress) }
+            else -> result.notImplemented()
+        }
+    }
+
+    private fun getAddress(call: MethodCall, result: MethodChannel.Result) {
+        val latitude = call.argument<Number>("latitude")?.toDouble()
+        val longitude = call.argument<Number>("longitude")?.toDouble()
+        val localeString = call.argument<String>("locale")
+        val maxResults = call.argument<Int>("maxResults") ?: 1
+        if (latitude == null || longitude == null) {
+            result.error("getAddress-args", "failed because of missing arguments", null)
+            return
+        }
+
+        if (!Geocoder.isPresent()) {
+            result.error("getAddress-unavailable", "Geocoder is unavailable", null)
+            return
+        }
+
+        geocoder = geocoder ?: if (localeString != null) {
+            val split = localeString.split("_")
+            val language = split[0]
+            val country = if (split.size > 1) split[1] else ""
+            Geocoder(context, Locale(language, country))
+        } else {
+            Geocoder(context)
+        }
+
+        val addresses = try {
+            geocoder!!.getFromLocation(latitude, longitude, maxResults) ?: ArrayList()
+        } catch (e: Exception) {
+            result.error("getAddress-exception", "failed to get address", e.message)
+            return
+        }
+
+        if (addresses.isEmpty()) {
+            result.error("getAddress-empty", "failed to find any address for latitude=$latitude, longitude=$longitude", null)
+        } else {
+            val addressMapList: ArrayList<Map<String, String?>> = ArrayList(addresses.map { address ->
+                hashMapOf(
+                    "addressLine" to (0..address.maxAddressLineIndex).joinToString(", ") { i -> address.getAddressLine(i) },
+                    "adminArea" to address.adminArea,
+                    "countryCode" to address.countryCode,
+                    "countryName" to address.countryName,
+                    "featureName" to address.featureName,
+                    "locality" to address.locality,
+                    "postalCode" to address.postalCode,
+                    "subAdminArea" to address.subAdminArea,
+                    "subLocality" to address.subLocality,
+                    "subThoroughfare" to address.subThoroughfare,
+                    "thoroughfare" to address.thoroughfare,
+                )
+            })
+            result.success(addressMapList)
+        }
+    }
+
+    companion object {
+        const val CHANNEL = "deckers.thibault/aves/geocoding"
+    }
+}

android/app/src/main/kotlin/deckers/thibault/aves/channel/calls/MetadataHandler.kt

@@ -18,6 +18,7 @@ import com.adobe.internal.xmp.properties.XMPPropertyInfo
 import com.bumptech.glide.load.resource.bitmap.TransformationUtils
 import com.drew.imaging.ImageMetadataReader
 import com.drew.lang.Rational
+import com.drew.metadata.Tag
 import com.drew.metadata.exif.*
 import com.drew.metadata.file.FileTypeDirectory
 import com.drew.metadata.gif.GifAnimationDirectory
@@ -47,7 +48,9 @@ import deckers.thibault.aves.metadata.MetadataExtractorHelper.getSafeRational
 import deckers.thibault.aves.metadata.MetadataExtractorHelper.getSafeString
 import deckers.thibault.aves.metadata.MetadataExtractorHelper.isGeoTiff
 import deckers.thibault.aves.metadata.XMP.getSafeDateMillis
+import deckers.thibault.aves.metadata.XMP.getSafeInt
 import deckers.thibault.aves.metadata.XMP.getSafeLocalizedText
+import deckers.thibault.aves.metadata.XMP.getSafeString
 import deckers.thibault.aves.metadata.XMP.isPanorama
 import deckers.thibault.aves.model.FieldMap
 import deckers.thibault.aves.model.provider.FileImageProvider
@@ -123,17 +126,29 @@ class MetadataHandler(private val context: Context) : MethodCallHandler {
                         metadataMap[dirName] = dirMap
 
                         // tags
+                        val tags = dir.tags
                         if (mimeType == MimeTypes.TIFF && (dir is ExifIFD0Directory || dir is ExifThumbnailDirectory)) {
-                            dirMap.putAll(dir.tags.map {
+                            fun tagMapper(it: Tag): Pair<String, String> {
                                 val name = if (it.hasTagName()) {
                                     it.tagName
                                 } else {
                                     TiffTags.getTagName(it.tagType) ?: it.tagName
                                 }
-                                Pair(name, it.description)
-                            })
+                                return Pair(name, it.description)
+                            }
+
+                            if (dir is ExifIFD0Directory && dir.isGeoTiff()) {
+                                // split GeoTIFF tags in their own directory
+                                val byGeoTiff = tags.groupBy { TiffTags.isGeoTiffTag(it.tagType) }
+                                metadataMap["GeoTIFF"] = HashMap<String, String>().apply {
+                                    byGeoTiff[true]?.map { tagMapper(it) }?.let { putAll(it) }
+                                }
+                                byGeoTiff[false]?.map { tagMapper(it) }?.let { dirMap.putAll(it) }
+                            } else {
+                                dirMap.putAll(tags.map { tagMapper(it) })
+                            }
                         } else {
-                            dirMap.putAll(dir.tags.map { Pair(it.tagName, it.description) })
+                            dirMap.putAll(tags.map { Pair(it.tagName, it.description) })
                         }
                         if (dir is XmpDirectory) {
                             try {
@@ -593,10 +608,11 @@ class MetadataHandler(private val context: Context) : MethodCallHandler {
                             KEY_PAGE to i,
                             KEY_MIME_TYPE to trackMime,
                         )
+
+                        // do not use `MediaFormat.KEY_TRACK_ID` as it is actually not unique between tracks
+                        // e.g. there could be both a video track and an image track with KEY_TRACK_ID == 1
+
                         format.getSafeInt(MediaFormat.KEY_IS_DEFAULT) { page[KEY_IS_DEFAULT] = it != 0 }
-                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
-                            format.getSafeInt(MediaFormat.KEY_TRACK_ID) { page[KEY_TRACK_ID] = it }
-                        }
                         format.getSafeInt(MediaFormat.KEY_WIDTH) { page[KEY_WIDTH] = it }
                         format.getSafeInt(MediaFormat.KEY_HEIGHT) { page[KEY_HEIGHT] = it }
                         if (isVideo(trackMime)) {
@@ -626,25 +642,21 @@ class MetadataHandler(private val context: Context) : MethodCallHandler {
             try {
                 Metadata.openSafeInputStream(context, uri, mimeType, sizeBytes)?.use { input ->
                     val metadata = ImageMetadataReader.readMetadata(input)
-                    val xmpDirs = metadata.getDirectoriesOfType(XmpDirectory::class.java)
-                    try {
-                        fun getIntProp(propName: String): Int? = xmpDirs.map { it.xmpMeta.getPropertyInteger(XMP.GPANO_SCHEMA_NS, propName) }.firstOrNull { it != null }
-                        fun getStringProp(propName: String): String? = xmpDirs.map { it.xmpMeta.getPropertyString(XMP.GPANO_SCHEMA_NS, propName) }.firstOrNull { it != null }
-                        val fields: FieldMap = hashMapOf(
-                            "croppedAreaLeft" to getIntProp(XMP.GPANO_CROPPED_AREA_LEFT_PROP_NAME),
-                            "croppedAreaTop" to getIntProp(XMP.GPANO_CROPPED_AREA_TOP_PROP_NAME),
-                            "croppedAreaWidth" to getIntProp(XMP.GPANO_CROPPED_AREA_WIDTH_PROP_NAME),
-                            "croppedAreaHeight" to getIntProp(XMP.GPANO_CROPPED_AREA_HEIGHT_PROP_NAME),
-                            "fullPanoWidth" to getIntProp(XMP.GPANO_FULL_PANO_WIDTH_PROP_NAME),
-                            "fullPanoHeight" to getIntProp(XMP.GPANO_FULL_PANO_HEIGHT_PROP_NAME),
-                            "projectionType" to (getStringProp(XMP.GPANO_PROJECTION_TYPE_PROP_NAME) ?: XMP.GPANO_PROJECTION_TYPE_DEFAULT),
-                        )
-                        result.success(fields)
-                        return
-                    } catch (e: XMPException) {
-                        result.error("getPanoramaInfo-args", "failed to read XMP for uri=$uri", e.message)
-                        return
+                    val fields = hashMapOf<String, Any?>(
+                        "projectionType" to XMP.GPANO_PROJECTION_TYPE_DEFAULT,
+                    )
+                    for (dir in metadata.getDirectoriesOfType(XmpDirectory::class.java)) {
+                        val xmpMeta = dir.xmpMeta
+                        xmpMeta.getSafeInt(XMP.GPANO_SCHEMA_NS, XMP.GPANO_CROPPED_AREA_LEFT_PROP_NAME) { fields["croppedAreaLeft"] = it }
+                        xmpMeta.getSafeInt(XMP.GPANO_SCHEMA_NS, XMP.GPANO_CROPPED_AREA_TOP_PROP_NAME) { fields["croppedAreaTop"] = it }
+                        xmpMeta.getSafeInt(XMP.GPANO_SCHEMA_NS, XMP.GPANO_CROPPED_AREA_WIDTH_PROP_NAME) { fields["croppedAreaWidth"] = it }
+                        xmpMeta.getSafeInt(XMP.GPANO_SCHEMA_NS, XMP.GPANO_CROPPED_AREA_HEIGHT_PROP_NAME) { fields["croppedAreaHeight"] = it }
+                        xmpMeta.getSafeInt(XMP.GPANO_SCHEMA_NS, XMP.GPANO_FULL_PANO_WIDTH_PROP_NAME) { fields["fullPanoWidth"] = it }
+                        xmpMeta.getSafeInt(XMP.GPANO_SCHEMA_NS, XMP.GPANO_FULL_PANO_HEIGHT_PROP_NAME) { fields["fullPanoHeight"] = it }
+                        xmpMeta.getSafeString(XMP.GPANO_SCHEMA_NS, XMP.GPANO_PROJECTION_TYPE_PROP_NAME) { fields["projectionType"] = it }
                     }
+                    result.success(fields)
+                    return
                 }
             } catch (e: Exception) {
                 Log.w(LOG_TAG, "failed to read XMP", e)
@@ -875,7 +887,6 @@ class MetadataHandler(private val context: Context) : MethodCallHandler {
         private const val KEY_HEIGHT = "height"
         private const val KEY_WIDTH = "width"
         private const val KEY_PAGE = "page"
-        private const val KEY_TRACK_ID = "trackId"
         private const val KEY_IS_DEFAULT = "isDefault"
         private const val KEY_DURATION = "durationMillis"
 

android/app/src/main/kotlin/deckers/thibault/aves/decoder/MultiTrackImageGlideModule.kt

@@ -27,7 +27,7 @@ class MultiTrackImageGlideModule : LibraryGlideModule() {
     }
 }
 
-class MultiTrackImage(val context: Context, val uri: Uri, val trackId: Int?)
+class MultiTrackImage(val context: Context, val uri: Uri, val trackIndex: Int?)
 
 internal class MultiTrackThumbnailLoader : ModelLoader<MultiTrackImage, Bitmap> {
     override fun buildLoadData(model: MultiTrackImage, width: Int, height: Int, options: Options): ModelLoader.LoadData<Bitmap> {
@@ -52,9 +52,9 @@ internal class MultiTrackImageFetcher(val model: MultiTrackImage, val width: Int
 
         val context = model.context
         val uri = model.uri
-        val trackId = model.trackId
+        val trackIndex = model.trackIndex
 
-        val bitmap = MultiTrackMedia.getImage(context, uri, trackId)
+        val bitmap = MultiTrackMedia.getImage(context, uri, trackIndex)
         if (bitmap == null) {
             callback.onLoadFailed(Exception("null bitmap"))
         } else {

android/app/src/main/kotlin/deckers/thibault/aves/metadata/MultiTrackMedia.kt

@@ -16,17 +16,17 @@ object MultiTrackMedia {
     private val LOG_TAG = LogUtils.createTag(MultiTrackMedia::class.java)
 
     @RequiresApi(Build.VERSION_CODES.P)
-    fun getImage(context: Context, uri: Uri, trackId: Int?): Bitmap? {
+    fun getImage(context: Context, uri: Uri, trackIndex: Int?): Bitmap? {
         val retriever = StorageUtils.openMetadataRetriever(context, uri) ?: return null
         try {
-            return if (trackId != null) {
-                val imageIndex = trackIdToImageIndex(context, uri, trackId) ?: return null
+            return if (trackIndex != null) {
+                val imageIndex = trackIndexToImageIndex(context, uri, trackIndex) ?: return null
                 retriever.getImageAtIndex(imageIndex)
             } else {
                 retriever.primaryImage
             }
         } catch (e: Exception) {
-            Log.w(LOG_TAG, "failed to extract image from uri=$uri trackId=$trackId", e)
+            Log.w(LOG_TAG, "failed to extract image from uri=$uri trackIndex=$trackIndex", e)
         } finally {
             // cannot rely on `MediaMetadataRetriever` being `AutoCloseable` on older APIs
             retriever.release()
@@ -34,7 +34,7 @@ object MultiTrackMedia {
         return null
     }
 
-    private fun trackIdToImageIndex(context: Context, uri: Uri, trackId: Int): Int? {
+    private fun trackIndexToImageIndex(context: Context, uri: Uri, trackIndex: Int): Int? {
         val extractor = MediaExtractor()
         try {
             extractor.setDataSource(context, uri, null)
@@ -42,7 +42,7 @@ object MultiTrackMedia {
             var imageIndex = 0
             for (i in 0 until trackCount) {
                 val trackFormat = extractor.getTrackFormat(i)
-                if (trackId == trackFormat.getInteger(MediaFormat.KEY_TRACK_ID)) {
+                if (trackIndex == i) {
                     return imageIndex
                 }
                 if (MimeTypes.isImage(trackFormat.getString(MediaFormat.KEY_MIME))) {
@@ -50,7 +50,7 @@ object MultiTrackMedia {
                 }
             }
         } catch (e: Exception) {
-            Log.w(LOG_TAG, "failed to get image index for uri=$uri, trackId=$trackId", e)
+            Log.w(LOG_TAG, "failed to get image index for uri=$uri, trackIndex=$trackIndex", e)
         } finally {
             extractor.release()
         }

android/app/src/main/kotlin/deckers/thibault/aves/metadata/TiffTags.kt

@@ -110,6 +110,15 @@ object TiffTags {
     // Count = variable
     const val TAG_ORIGINAL_RAW_FILE_NAME = 0xc68b
 
+    private val geotiffTags = listOf(
+        TAG_GEO_ASCII_PARAMS,
+        TAG_GEO_DOUBLE_PARAMS,
+        TAG_GEO_KEY_DIRECTORY,
+        TAG_MODEL_PIXEL_SCALE,
+        TAG_MODEL_TIEPOINT,
+        TAG_MODEL_TRANSFORMATION,
+    )
+
     private val tagNameMap = hashMapOf(
         TAG_X_POSITION to "X Position",
         TAG_Y_POSITION to "Y Position",
@@ -132,6 +141,8 @@ object TiffTags {
         TAG_ORIGINAL_RAW_FILE_NAME to "Original Raw File Name",
     )
 
+    fun isGeoTiffTag(tag: Int) = geotiffTags.contains(tag)
+
     fun getTagName(tag: Int): String? {
         return tagNameMap[tag]
     }

android/app/src/main/kotlin/deckers/thibault/aves/metadata/XMP.kt

@@ -97,6 +97,34 @@ object XMP {
         return false
     }
 
+    fun XMPMeta.getSafeInt(schema: String, propName: String, save: (value: Int) -> Unit) {
+        try {
+            if (doesPropertyExist(schema, propName)) {
+                val item = getPropertyInteger(schema, propName)
+                // double check retrieved items as the property sometimes is reported to exist but it is actually null
+                if (item != null) {
+                    save(item)
+                }
+            }
+        } catch (e: XMPException) {
+            Log.w(LOG_TAG, "failed to get int for XMP schema=$schema, propName=$propName", e)
+        }
+    }
+
+    fun XMPMeta.getSafeString(schema: String, propName: String, save: (value: String) -> Unit) {
+        try {
+            if (doesPropertyExist(schema, propName)) {
+                val item = getPropertyString(schema, propName)
+                // double check retrieved items as the property sometimes is reported to exist but it is actually null
+                if (item != null) {
+                    save(item)
+                }
+            }
+        } catch (e: XMPException) {
+            Log.w(LOG_TAG, "failed to get int for XMP schema=$schema, propName=$propName", e)
+        }
+    }
+
     fun XMPMeta.getSafeLocalizedText(schema: String, propName: String, acceptBlank: Boolean = true, save: (value: String) -> Unit) {
         try {
             if (doesPropertyExist(schema, propName)) {

android/app/src/main/res/values-ko/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<resources>
+	<string name="app_name">아베스</string>
+	<string name="search_shortcut_short_label">검색</string>
+	<string name="videos_shortcut_short_label">동영상</string>
+</resources>

android/app/src/profile/res/values-ko/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<resources>
+	<string name="app_name">아베스 [Profile]</string>
+</resources>

android/build.gradle

@@ -1,18 +1,21 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-    ext.kotlin_version = '1.4.30'
+    ext.kotlin_version = '1.4.31'
     repositories {
         google()
         mavenCentral()
         // TODO TLAD remove jcenter (migrating to mavenCentral) when this is fixed: https://youtrack.jetbrains.com/issue/IDEA-261387
-        jcenter()
+        jcenter {
+            content {
+                includeModule("org.jetbrains.trove4j", "trove4j")
+            }
+        }
     }
     dependencies {
-        // TODO TLAD upgrade AGP to 4+ when this lands on stable: https://github.com/flutter/flutter/commit/8dd0de7f580972079f610a56a689b0a9c414f81e
-        classpath 'com.android.tools.build:gradle:3.6.4'
+        classpath 'com.android.tools.build:gradle:4.1.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath 'com.google.gms:google-services:4.3.5'
-        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.5.0'
+        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.5.1'
     }
 }
 
@@ -21,7 +24,11 @@ allprojects {
         google()
         mavenCentral()
         // TODO TLAD remove jcenter (migrating to mavenCentral) when this is fixed: https://youtrack.jetbrains.com/issue/IDEA-261387
-        jcenter()
+        jcenter {
+            content {
+                includeModule("org.jetbrains.trove4j", "trove4j")
+            }
+        }
     }
 //    gradle.projectsEvaluated {
 //        tasks.withType(JavaCompile) {

android/gradle.properties

@@ -15,4 +15,3 @@ android.useAndroidX=true
 android.enableJetifier=true
 # Kotlin code style for this project: "official" or "obsolete":
 kotlin.code.style=official
-android.enableR8=true

extra/aves_icon.svg

@@ -1,102 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
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-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title></dc:title>
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
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l10n.yaml

@@ -0,0 +1,10 @@
+# cf guide: http://flutter.dev/go/i18n-user-guide
+
+# use defaults to:
+# - parse ARB files from `lib/l10n`
+# - generate class `AppLocalizations` in `app_localizations.dart`
+
+preferred-supported-locales:
+  - en
+
+# untranslated-messages-file: untranslated.json

lib/app_mode.dart

@@ -0,0 +1,9 @@
+enum AppMode { main, pickExternal, pickInternal, view }
+
+extension ExtraAppMode on AppMode {
+  bool get canSearch => this == AppMode.main || this == AppMode.pickExternal;
+
+  bool get hasDrawer => this == AppMode.main || this == AppMode.pickExternal;
+
+  bool get isPicking => this == AppMode.pickExternal || this == AppMode.pickInternal;
+}

lib/image_providers/region_provider.dart

@@ -2,7 +2,7 @@ import 'dart:async';
 import 'dart:math';
 import 'dart:ui' as ui show Codec;
 
-import 'package:aves/services/image_file_service.dart';
+import 'package:aves/services/services.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 
@@ -32,7 +32,7 @@ class RegionProvider extends ImageProvider<RegionProviderKey> {
     final mimeType = key.mimeType;
     final pageId = key.pageId;
     try {
-      final bytes = await ImageFileService.getRegion(
+      final bytes = await imageFileService.getRegion(
         uri,
         mimeType,
         key.rotationDegrees,
@@ -55,11 +55,11 @@ class RegionProvider extends ImageProvider<RegionProviderKey> {
 
   @override
   void resolveStreamForKey(ImageConfiguration configuration, ImageStream stream, RegionProviderKey key, ImageErrorListener handleError) {
-    ImageFileService.resumeLoading(key);
+    imageFileService.resumeLoading(key);
     super.resolveStreamForKey(configuration, stream, key, handleError);
   }
 
-  void pause() => ImageFileService.cancelRegion(key);
+  void pause() => imageFileService.cancelRegion(key);
 }
 
 class RegionProviderKey {

lib/image_providers/thumbnail_provider.dart

@@ -1,6 +1,6 @@
 import 'dart:ui' as ui show Codec;
 
-import 'package:aves/services/image_file_service.dart';
+import 'package:aves/services/services.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 
@@ -33,7 +33,7 @@ class ThumbnailProvider extends ImageProvider<ThumbnailProviderKey> {
     final mimeType = key.mimeType;
     final pageId = key.pageId;
     try {
-      final bytes = await ImageFileService.getThumbnail(
+      final bytes = await imageFileService.getThumbnail(
         uri: uri,
         mimeType: mimeType,
         pageId: pageId,
@@ -55,11 +55,11 @@ class ThumbnailProvider extends ImageProvider<ThumbnailProviderKey> {
 
   @override
   void resolveStreamForKey(ImageConfiguration configuration, ImageStream stream, ThumbnailProviderKey key, ImageErrorListener handleError) {
-    ImageFileService.resumeLoading(key);
+    imageFileService.resumeLoading(key);
     super.resolveStreamForKey(configuration, stream, key, handleError);
   }
 
-  void pause() => ImageFileService.cancelThumbnail(key);
+  void pause() => imageFileService.cancelThumbnail(key);
 }
 
 class ThumbnailProviderKey {

lib/image_providers/uri_image_provider.dart

@@ -1,7 +1,7 @@
 import 'dart:async';
 import 'dart:ui' as ui show Codec;
 
-import 'package:aves/services/image_file_service.dart';
+import 'package:aves/services/services.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 import 'package:pedantic/pedantic.dart';
@@ -46,7 +46,7 @@ class UriImage extends ImageProvider<UriImage> {
     assert(key == this);
 
     try {
-      final bytes = await ImageFileService.getImage(
+      final bytes = await imageFileService.getImage(
         uri,
         mimeType,
         rotationDegrees,

lib/image_providers/uri_picture_provider.dart

@@ -1,4 +1,4 @@
-import 'package:aves/services/image_file_service.dart';
+import 'package:aves/services/services.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_svg/flutter_svg.dart';
@@ -8,13 +8,12 @@ class UriPicture extends PictureProvider<UriPicture> {
   const UriPicture({
     @required this.uri,
     @required this.mimeType,
-    this.colorFilter,
-  }) : assert(uri != null);
+    ColorFilter colorFilter,
+  })  : assert(uri != null),
+        super(colorFilter);
 
   final String uri, mimeType;
 
-  final ColorFilter colorFilter;
-
   @override
   Future<UriPicture> obtainKey(PictureConfiguration configuration) {
     return SynchronousFuture<UriPicture>(this);
@@ -30,7 +29,7 @@ class UriPicture extends PictureProvider<UriPicture> {
   Future<PictureInfo> _loadAsync(UriPicture key, {PictureErrorListener onError}) async {
     assert(key == this);
 
-    final data = await ImageFileService.getSvg(uri, mimeType);
+    final data = await imageFileService.getSvg(uri, mimeType);
     if (data == null || data.isEmpty) {
       return null;
     }

lib/l10n/app_en.arb

@@ -0,0 +1,668 @@
+{
+  "appName": "Aves",
+  "@appName": {},
+  "welcomeMessage": "Welcome to Aves",
+  "@welcomeMessage": {},
+  "welcomeAnalyticsToggle": "Allow anonymous analytics and crash reporting (optional)",
+  "@welcomeAnalyticsToggle": {},
+  "welcomeTermsToggle": "I agree to the terms and conditions",
+  "@welcomeTermsToggle": {},
+
+  "applyButtonLabel": "APPLY",
+  "@applyButtonLabel": {},
+  "deleteButtonLabel": "DELETE",
+  "@deleteButtonLabel": {},
+  "hideButtonLabel": "HIDE",
+  "@hideButtonLabel": {},
+  "continueButtonLabel": "CONTINUE",
+  "@continueButtonLabel": {},
+  "clearTooltip": "Clear",
+  "@clearTooltip": {},
+  "previousTooltip": "Previous",
+  "@previousTooltip": {},
+  "nextTooltip": "Next",
+  "@nextTooltip": {},
+
+  "doubleBackExitMessage": "Tap “back” again to exit.",
+  "@doubleBackExitMessage": {},
+
+  "sourceStateLoading": "Loading",
+  "@sourceStateLoading": {},
+  "sourceStateCataloguing": "Cataloguing",
+  "@sourceStateCataloguing": {},
+  "sourceStateLocating": "Locating",
+  "@sourceStateLocating": {},
+
+  "chipActionDelete": "Delete",
+  "@chipActionDelete": {},
+  "chipActionGoToAlbumPage": "Show in Albums",
+  "@chipActionGoToAlbumPage": {},
+  "chipActionGoToCountryPage": "Show in Countries",
+  "@chipActionGoToCountryPage": {},
+  "chipActionGoToTagPage": "Show in Tags",
+  "@chipActionGoToTagPage": {},
+  "chipActionHide": "Hide",
+  "@chipActionHide": {},
+  "chipActionPin": "Pin to top",
+  "@chipActionPin": {},
+  "chipActionUnpin": "Unpin from top",
+  "@chipActionUnpin": {},
+  "chipActionRename": "Rename",
+  "@chipActionRename": {},
+  "chipActionSetCover": "Set cover",
+  "@chipActionSetCover": {},
+
+  "entryActionDelete": "Delete",
+  "@entryActionDelete": {},
+  "entryActionExport": "Export",
+  "@entryActionExport": {},
+  "entryActionInfo": "Info",
+  "@entryActionInfo": {},
+  "entryActionRename": "Rename",
+  "@entryActionRename": {},
+  "entryActionRotateCCW": "Rotate counterclockwise",
+  "@entryActionRotateCCW": {},
+  "entryActionRotateCW": "Rotate clockwise",
+  "@entryActionRotateCW": {},
+  "entryActionFlip": "Flip horizontally",
+  "@entryActionFlip": {},
+  "entryActionPrint": "Print",
+  "@entryActionPrint": {},
+  "entryActionShare": "Share",
+  "@entryActionShare": {},
+  "entryActionViewSource": "View source",
+  "@entryActionViewSource": {},
+  "entryActionEdit": "Edit with…",
+  "@entryActionEdit": {},
+  "entryActionOpen": "Open with…",
+  "@entryActionOpen": {},
+  "entryActionSetAs": "Set as…",
+  "@entryActionSetAs": {},
+  "entryActionOpenMap": "Show on map…",
+  "@entryActionOpenMap": {},
+  "entryActionAddFavourite": "Add to favourites",
+  "@entryActionAddFavourite": {},
+  "entryActionRemoveFavourite": "Remove from favourites",
+  "@entryActionRemoveFavourite": {},
+
+  "filterFavouriteLabel": "Favourite",
+  "@filterFavouriteLabel": {},
+  "filterLocationEmptyLabel": "Unlocated",
+  "@filterLocationEmptyLabel": {},
+  "filterTagEmptyLabel": "Untagged",
+  "@filterTagEmptyLabel": {},
+  "filterTypeAnimatedLabel": "Animated",
+  "@filterTypeAnimatedLabel": {},
+  "filterTypePanoramaLabel": "Panorama",
+  "@filterTypePanoramaLabel": {},
+  "filterTypeSphericalVideoLabel": "360° Video",
+  "@filterTypeSphericalVideoLabel": {},
+  "filterTypeGeotiffLabel": "GeoTIFF",
+  "@filterTypeGeotiffLabel": {},
+  "filterMimeImageLabel": "Image",
+  "@filterMimeImageLabel": {},
+  "filterMimeVideoLabel": "Video",
+  "@filterMimeVideoLabel": {},
+
+  "coordinateFormatDms": "DMS",
+  "@coordinateFormatDms": {},
+  "coordinateFormatDecimal": "Decimal degrees",
+  "@coordinateFormatDecimal": {},
+
+  "mapStyleGoogleNormal": "Google Maps",
+  "@mapStyleGoogleNormal": {},
+  "mapStyleGoogleHybrid": "Google Maps (Hybrid)",
+  "@mapStyleGoogleHybrid": {},
+  "mapStyleGoogleTerrain": "Google Maps (Terrain)",
+  "@mapStyleGoogleTerrain": {},
+  "mapStyleOsmHot": "Humanitarian OSM",
+  "@mapStyleOsmHot": {},
+  "mapStyleStamenToner": "Stamen Toner",
+  "@mapStyleStamenToner": {},
+  "mapStyleStamenWatercolor": "Stamen Watercolor",
+  "@mapStyleStamenWatercolor": {},
+
+  "keepScreenOnNever": "Never",
+  "@keepScreenOnNever": {},
+  "keepScreenOnViewerOnly": "Viewer page only",
+  "@keepScreenOnViewerOnly": {},
+  "keepScreenOnAlways": "Always",
+  "@keepScreenOnAlways": {},
+
+  "albumTierPinned": "Pinned",
+  "@albumTierPinned": {},
+  "albumTierSpecial": "Common",
+  "@albumTierSpecial": {},
+  "albumTierApps": "Apps",
+  "@albumTierApps": {},
+  "albumTierRegular": "Others",
+  "@albumTierRegular": {},
+
+  "storageVolumeDescriptionFallbackPrimary": "Internal storage",
+  "@storageVolumeDescriptionFallbackPrimary": {},
+  "storageVolumeDescriptionFallbackNonPrimary": "SD card",
+  "@storageVolumeDescriptionFallbackNonPrimary": {},
+  "rootDirectoryDescription": "root directory",
+  "@rootDirectoryDescription": {},
+  "otherDirectoryDescription": "“{name}” directory",
+  "@otherDirectoryDescription": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
+  "storageAccessDialogTitle": "Storage Access",
+  "@storageAccessDialogTitle": {},
+  "storageAccessDialogMessage": "Please select the {directory} of “{volume}” in the next screen to give this app access to it.",
+  "@storageAccessDialogMessage": {
+    "placeholders": {
+      "directory": {
+        "type": "String"
+      },
+      "volume": {
+        "type": "String"
+      }
+    }
+  },
+  "restrictedAccessDialogTitle": "Restricted Access",
+  "@restrictedAccessDialogTitle": {},
+  "restrictedAccessDialogMessage": "This app is not allowed to modify files in the {directory} of “{volume}”.\n\nPlease use a pre-installed file manager or gallery app to move the items to another directory.",
+  "@restrictedAccessDialogMessage": {
+    "placeholders": {
+      "directory": {
+        "type": "String"
+      },
+      "volume": {
+        "type": "String"
+      }
+    }
+  },
+  "notEnoughSpaceDialogTitle": "Not Enough Space",
+  "@notEnoughSpaceDialogTitle": {},
+  "notEnoughSpaceDialogMessage": "This operation needs {neededSize} of free space on “{volume}” to complete, but there is only {freeSize} left.",
+  "@notEnoughSpaceDialogMessage": {
+    "placeholders": {
+      "neededSize": {
+        "type": "String"
+      },
+      "freeSize": {
+        "type": "String"
+      },
+      "volume": {
+        "type": "String"
+      }
+    }
+  },
+
+  "addShortcutDialogLabel": "Shortcut label",
+  "@addShortcutDialogLabel": {},
+  "addShortcutButtonLabel": "ADD",
+  "@addShortcutButtonLabel": {},
+
+  "noMatchingAppDialogTitle": "No Matching App",
+  "@noMatchingAppDialogTitle": {},
+  "noMatchingAppDialogMessage": "There are no apps that can handle this.",
+  "@noMatchingAppDialogMessage": {},
+
+  "deleteEntriesConfirmationDialogMessage": "{count, plural, =1{Are you sure you want to delete this item?} other{Are you sure you want to delete these {count} items?}}",
+  "@deleteEntriesConfirmationDialogMessage": {
+    "placeholders": {
+      "count": {}
+    }
+  },
+
+  "setCoverDialogTitle": "Set Cover",
+  "@setCoverDialogTitle": {},
+  "setCoverDialogLatest": "Latest item",
+  "@setCoverDialogLatest": {},
+  "setCoverDialogCustom": "Custom",
+  "@setCoverDialogCustom": {},
+
+  "hideFilterConfirmationDialogMessage": "Matching photos and videos will be hidden from your collection. You can show them again from the “Privacy” settings.\n\nAre you sure you want to hide them?",
+  "@hideFilterConfirmationDialogMessage": {},
+
+  "newAlbumDialogTitle": "New Album",
+  "@newAlbumDialogTitle": {},
+  "newAlbumDialogNameLabel": "Album name",
+  "@newAlbumDialogNameLabel": {},
+  "newAlbumDialogNameLabelAlreadyExistsHelper": "Directory already exists",
+  "@newAlbumDialogNameLabelAlreadyExistsHelper": {},
+  "newAlbumDialogStorageLabel": "Storage:",
+  "@newAlbumDialogStorageLabel": {},
+
+  "renameAlbumDialogLabel": "New name",
+  "@renameAlbumDialogLabel": {},
+  "renameAlbumDialogLabelAlreadyExistsHelper": "Directory already exists",
+  "@renameAlbumDialogLabelAlreadyExistsHelper": {},
+
+  "deleteAlbumConfirmationDialogMessage": "{count, plural, =1{Are you sure you want to delete this album and its item?} other{Are you sure you want to delete this album and its {count} items?}}",
+  "@deleteAlbumConfirmationDialogMessage": {
+    "placeholders": {
+      "count": {}
+    }
+  },
+
+  "renameEntryDialogLabel": "New name",
+  "@renameEntryDialogLabel": {},
+
+  "genericSuccessFeedback": "Done!",
+  "@genericSuccessFeedback": {},
+  "genericFailureFeedback": "Failed",
+  "@genericFailureFeedback": {},
+
+  "menuActionSort": "Sort",
+  "@menuActionSort": {},
+  "menuActionGroup": "Group",
+  "@menuActionGroup": {},
+  "menuActionStats": "Stats",
+  "@menuActionStats": {},
+
+  "aboutPageTitle": "About",
+  "@aboutPageTitle": {},
+  "aboutFlutter": "Flutter",
+  "@aboutFlutter": {},
+  "aboutUpdate": "New Version Available",
+  "@aboutUpdate": {},
+  "aboutUpdateLinks1": "A new version of Aves is available on",
+  "@aboutUpdateLinks1": {},
+  "aboutUpdateLinks2": "and",
+  "@aboutUpdateLinks2": {},
+  "aboutUpdateLinks3": ".",
+  "@aboutUpdateLinks3": {},
+  "aboutUpdateGithub": "Github",
+  "@aboutUpdateGithub": {},
+  "aboutUpdateGooglePlay": "Google Play",
+  "@aboutUpdateGooglePlay": {},
+  "aboutCredits": "Credits",
+  "@aboutCredits": {},
+  "aboutCreditsWorldAtlas1": "This app uses a TopoJSON file from",
+  "@aboutCreditsWorldAtlas1": {},
+  "aboutCreditsWorldAtlas2": "under ISC License.",
+  "@aboutCreditsWorldAtlas2": {},
+  "aboutLicenses": "Open-Source Licenses",
+  "@aboutLicenses": {},
+  "aboutLicensesBanner": "This app uses the following open-source packages and libraries.",
+  "@aboutLicensesBanner": {},
+  "aboutLicensesSortTooltip": "Sort",
+  "@aboutLicensesSortTooltip": {},
+  "aboutLicensesSortByName": "Sort by name",
+  "@aboutLicensesSortByName": {},
+  "aboutLicensesSortByLicense": "Sort by license",
+  "@aboutLicensesSortByLicense": {},
+  "aboutLicensesAndroidLibraries": "Android Libraries",
+  "@aboutLicensesAndroidLibraries": {},
+  "aboutLicensesFlutterPlugins": "Flutter Plugins",
+  "@aboutLicensesFlutterPlugins": {},
+  "aboutLicensesFlutterPackages": "Flutter Packages",
+  "@aboutLicensesFlutterPackages": {},
+  "aboutLicensesDartPackages": "Dart Packages",
+  "@aboutLicensesDartPackages": {},
+  "aboutLicensesShowAllButtonLabel": "SHOW ALL LICENSES",
+  "@aboutLicensesShowAllButtonLabel": {},
+
+  "collectionPageTitle": "Collection",
+  "@collectionPageTitle": {},
+  "collectionPickPageTitle": "Pick",
+  "@collectionPickPageTitle": {},
+  "collectionSelectionPageTitle": "{count, plural, =0{Select items} =1{1 item} other{{count} items}}",
+  "@collectionSelectionPageTitle": {
+    "placeholders": {
+      "count": {}
+    }
+  },
+
+  "collectionActionAddShortcut": "Add shortcut",
+  "@collectionActionAddShortcut": {},
+  "collectionActionSelect": "Select",
+  "@collectionActionSelect": {},
+  "collectionActionSelectAll": "Select all",
+  "@collectionActionSelectAll": {},
+  "collectionActionSelectNone": "Select none",
+  "@collectionActionSelectNone": {},
+  "collectionActionCopy": "Copy to album",
+  "@collectionActionCopy": {},
+  "collectionActionMove": "Move to album",
+  "@collectionActionMove": {},
+  "collectionActionRefreshMetadata": "Refresh metadata",
+  "@collectionActionRefreshMetadata": {},
+
+  "collectionSortTitle": "Sort",
+  "@collectionSortTitle": {},
+  "collectionSortDate": "By date",
+  "@collectionSortDate": {},
+  "collectionSortSize": "By size",
+  "@collectionSortSize": {},
+  "collectionSortName": "By album & file name",
+  "@collectionSortName": {},
+
+  "collectionGroupTitle": "Group",
+  "@collectionGroupTitle": {},
+  "collectionGroupAlbum": "By album",
+  "@collectionGroupAlbum": {},
+  "collectionGroupMonth": "By month",
+  "@collectionGroupMonth": {},
+  "collectionGroupDay": "By day",
+  "@collectionGroupDay": {},
+  "collectionGroupNone": "Do not group",
+  "@collectionGroupNone": {},
+
+  "sectionUnknown": "Unknown",
+  "@sectionUnknown": {},
+  "dateToday": "Today",
+  "@dateToday": {},
+  "dateYesterday": "Yesterday",
+  "@dateYesterday": {},
+  "dateThisMonth": "This month",
+  "@dateThisMonth": {},
+  "errorUnsupportedMimeType": "{mimeType} not supported",
+  "@errorUnsupportedMimeType": {
+    "placeholders": {
+      "mimeType": {
+        "type": "String"
+      }
+    }
+  },
+  "collectionDeleteFailureFeedback": "{count, plural, =1{Failed to delete 1 item} other{Failed to delete {count} items}}",
+  "@collectionDeleteFailureFeedback": {
+    "placeholders": {
+      "count": {}
+    }
+  },
+  "collectionCopyFailureFeedback": "{count, plural, =1{Failed to copy 1 item} other{Failed to copy {count} items}}",
+  "@collectionCopyFailureFeedback": {
+    "placeholders": {
+      "count": {}
+    }
+  },
+  "collectionMoveFailureFeedback": "{count, plural, =1{Failed to move 1 item} other{Failed to move {count} items}}",
+  "@collectionMoveFailureFeedback": {
+    "placeholders": {
+      "count": {}
+    }
+  },
+  "collectionExportFailureFeedback": "{count, plural, =1{Failed to export 1 page} other{Failed to export {count} pages}}",
+  "@collectionExportFailureFeedback": {
+    "placeholders": {
+      "count": {}
+    }
+  },
+  "collectionCopySuccessFeedback": "{count, plural, =1{Copied 1 item} other{Copied {count} items}}",
+  "@collectionCopySuccessFeedback": {
+    "placeholders": {
+      "count": {}
+    }
+  },
+  "collectionMoveSuccessFeedback": "{count, plural, =1{Moved 1 item} other{Moved {count} items}}",
+  "@collectionMoveSuccessFeedback": {
+    "placeholders": {
+      "count": {}
+    }
+  },
+
+  "collectionEmptyFavourites": "No favourites",
+  "@collectionEmptyFavourites": {},
+  "collectionEmptyVideos": "No videos",
+  "@collectionEmptyVideos": {},
+  "collectionEmptyImages": "No images",
+  "@collectionEmptyImages": {},
+
+  "collectionSelectSectionTooltip": "Select section",
+  "@collectionSelectSectionTooltip": {},
+  "collectionDeselectSectionTooltip": "Deselect section",
+  "@collectionDeselectSectionTooltip": {},
+
+  "drawerCollectionAll": "All collection",
+  "@drawerCollectionAll": {},
+  "drawerCollectionVideos": "Videos",
+  "@drawerCollectionVideos": {},
+  "drawerCollectionFavourites": "Favourites",
+  "@drawerCollectionFavourites": {},
+
+  "chipSortTitle": "Sort",
+  "@chipSortTitle": {},
+  "chipSortDate": "By date",
+  "@chipSortDate": {},
+  "chipSortName": "By name",
+  "@chipSortName": {},
+  "chipSortCount": "By item count",
+  "@chipSortCount": {},
+
+  "albumGroupTitle": "Group",
+  "@albumGroupTitle": {},
+  "albumGroupTier": "By tier",
+  "@albumGroupTier": {},
+  "albumGroupVolume": "By storage volume",
+  "@albumGroupVolume": {},
+  "albumGroupNone": "Do not group",
+  "@albumGroupNone": {},
+
+  "albumPickPageTitleCopy": "Copy to Album",
+  "@albumPickPageTitleCopy": {},
+  "albumPickPageTitleExport": "Export to Album",
+  "@albumPickPageTitleExport": {},
+  "albumPickPageTitleMove": "Move to Album",
+  "@albumPickPageTitleMove": {},
+
+  "albumPageTitle": "Albums",
+  "@albumPageTitle": {},
+  "albumEmpty": "No albums",
+  "@albumEmpty": {},
+  "createAlbumTooltip": "Create album",
+  "@createAlbumTooltip": {},
+  "createAlbumButtonLabel": "CREATE",
+  "@createAlbumButtonLabel": {},
+
+  "countryPageTitle": "Countries",
+  "@countryPageTitle": {},
+  "countryEmpty": "No countries",
+  "@countryEmpty": {},
+
+  "tagPageTitle": "Tags",
+  "@tagPageTitle": {},
+  "tagEmpty": "No tags",
+  "@tagEmpty": {},
+
+  "searchCollectionFieldHint": "Search collection",
+  "@searchCollectionFieldHint": {},
+  "searchSectionRecent": "Recent",
+  "@searchSectionRecent": {},
+  "searchSectionAlbums": "Albums",
+  "@searchSectionAlbums": {},
+  "searchSectionCountries": "Countries",
+  "@searchSectionCountries": {},
+  "searchSectionPlaces": "Places",
+  "@searchSectionPlaces": {},
+  "searchSectionTags": "Tags",
+  "@searchSectionTags": {},
+
+  "settingsPageTitle": "Settings",
+  "@settingsPageTitle": {},
+  "settingsSystemDefault": "System",
+  "@settingsSystemDefault": {},
+
+  "settingsSectionNavigation": "Navigation",
+  "@settingsSectionNavigation": {},
+  "settingsHome": "Home",
+  "@settingsHome": {},
+  "settingsDoubleBackExit": "Tap “back” twice to exit",
+  "@settingsDoubleBackExit": {},
+
+  "settingsSectionDisplay": "Display",
+  "@settingsSectionDisplay": {},
+  "settingsLanguage": "Language",
+  "@settingsLanguage": {},
+  "settingsKeepScreenOnTile": "Keep screen on",
+  "@settingsKeepScreenOnTile": {},
+  "settingsKeepScreenOnTitle": "Keep Screen On",
+  "@settingsKeepScreenOnTitle": {},
+  "settingsRasterImageBackground": "Raster image background",
+  "@settingsRasterImageBackground": {},
+  "settingsVectorImageBackground": "Vector image background",
+  "@settingsVectorImageBackground": {},
+  "settingsCoordinateFormatTile": "Coordinate format",
+  "@settingsCoordinateFormatTile": {},
+  "settingsCoordinateFormatTitle": "Coordinate Format",
+  "@settingsCoordinateFormatTitle": {},
+
+  "settingsSectionThumbnails": "Thumbnails",
+  "@settingsSectionThumbnails": {},
+  "settingsThumbnailShowLocationIcon": "Show location icon",
+  "@settingsThumbnailShowLocationIcon": {},
+  "settingsThumbnailShowRawIcon": "Show raw icon",
+  "@settingsThumbnailShowRawIcon": {},
+  "settingsThumbnailShowVideoDuration": "Show video duration",
+  "@settingsThumbnailShowVideoDuration": {},
+
+  "settingsSectionViewer": "Viewer",
+  "@settingsSectionViewer": {},
+  "settingsViewerShowMinimap": "Show minimap",
+  "@settingsViewerShowMinimap": {},
+  "settingsViewerShowInformation": "Show information",
+  "@settingsViewerShowInformation": {},
+  "settingsViewerShowInformationSubtitle": "Show title, date, location, etc.",
+  "@settingsViewerShowInformationSubtitle": {},
+  "settingsViewerShowShootingDetails": "Show shooting details",
+  "@settingsViewerShowShootingDetails": {},
+
+  "settingsSectionSearch": "Search",
+  "@settingsSectionSearch": {},
+  "settingsSaveSearchHistory": "Save search history",
+  "@settingsSaveSearchHistory": {},
+
+  "settingsSectionPrivacy": "Privacy",
+  "@settingsSectionPrivacy": {},
+  "settingsEnableAnalytics": "Allow anonymous analytics and crash reporting",
+  "@settingsEnableAnalytics": {},
+
+  "settingsHiddenFiltersTile": "Hidden filters",
+  "@settingsHiddenFiltersTile": {},
+  "settingsHiddenFiltersTitle": "Hidden Filters",
+  "@settingsHiddenFiltersTitle": {},
+  "settingsHiddenFiltersBanner": "Photos and videos matching hidden filters will not appear in your collection.",
+  "@settingsHiddenFiltersBanner": {},
+  "settingsHiddenFiltersEmpty": "No hidden filters",
+  "@settingsHiddenFiltersEmpty": {},
+
+  "settingsStorageAccessTile": "Storage access",
+  "@settingsStorageAccessTile": {},
+  "settingsStorageAccessTitle": "Storage Access",
+  "@settingsStorageAccessTitle": {},
+  "settingsStorageAccessBanner": "Some directories require an explicit access grant to modify files in them. You can review here directories to which you previously gave access.",
+  "@settingsStorageAccessBanner": {},
+  "settingsStorageAccessEmpty": "No access grants",
+  "@settingsStorageAccessEmpty": {},
+  "settingsStorageAccessRevokeTooltip": "Revoke",
+  "@settingsStorageAccessRevokeTooltip": {},
+
+  "statsPageTitle": "Stats",
+  "@statsPageTitle": {},
+  "statsImage": "{count, plural, =1{image} other{images}}",
+  "@statsImage": {
+    "placeholders": {
+      "count": {}
+    }
+  },
+  "statsVideo": "{count, plural, =1{video} other{videos}}",
+  "@statsVideo": {
+    "placeholders": {
+      "count": {}
+    }
+  },
+  "statsWithGps": "{count, plural, =1{1 item with location} other{{count} items with location}}",
+  "@statsWithGps": {
+    "placeholders": {
+      "count": {}
+    }
+  },
+  "statsTopCountries": "Top Countries",
+  "@statsTopCountries": {},
+  "statsTopPlaces": "Top Places",
+  "@statsTopPlaces": {},
+  "statsTopTags": "Top Tags",
+  "@statsTopTags": {},
+
+  "viewerOpenPanoramaButtonLabel": "OPEN PANORAMA",
+  "@viewerOpenPanoramaButtonLabel": {},
+  "viewerOpenTooltip": "Open",
+  "@viewerOpenTooltip": {},
+  "viewerPauseTooltip": "Pause",
+  "@viewerPauseTooltip": {},
+  "viewerPlayTooltip": "Play",
+  "@viewerPlayTooltip": {},
+  "viewerErrorUnknown": "Oops!",
+  "@viewerErrorUnknown": {},
+  "viewerErrorDoesNotExist": "The file no longer exists.",
+  "@viewerErrorDoesNotExist": {},
+
+  "viewerInfoPageTitle": "Info",
+  "@viewerInfoPageTitle": {},
+  "viewerInfoBackToViewerTooltip": "Back to viewer",
+  "@viewerInfoBackToViewerTooltip": {},
+
+  "viewerInfoUnknown": "unknown",
+  "@viewerInfoUnknown": {},
+  "viewerInfoLabelTitle": "Title",
+  "@viewerInfoLabelTitle": {},
+  "viewerInfoLabelDate": "Date",
+  "@viewerInfoLabelDate": {},
+  "viewerInfoLabelResolution": "Resolution",
+  "@viewerInfoLabelResolution": {},
+  "viewerInfoLabelSize": "Size",
+  "@viewerInfoLabelSize": {},
+  "viewerInfoLabelUri": "URI",
+  "@viewerInfoLabelUri": {},
+  "viewerInfoLabelPath": "Path",
+  "@viewerInfoLabelPath": {},
+  "viewerInfoLabelDuration": "Duration",
+  "@viewerInfoLabelDuration": {},
+  "viewerInfoLabelOwner": "Owned by",
+  "@viewerInfoLabelOwner": {},
+  "viewerInfoLabelCoordinates": "Coordinates",
+  "@viewerInfoLabelCoordinates": {},
+  "viewerInfoLabelAddress": "Address",
+  "@viewerInfoLabelAddress": {},
+
+  "viewerInfoMapStyleTitle": "Map Style",
+  "@viewerInfoMapStyleTitle": {},
+  "viewerInfoMapStyleTooltip": "Select map style",
+  "@viewerInfoMapStyleTooltip": {},
+  "viewerInfoMapZoomInTooltip": "Zoom in",
+  "@viewerInfoMapZoomInTooltip": {},
+  "viewerInfoMapZoomOutTooltip": "Zoom out",
+  "@viewerInfoMapZoomOutTooltip": {},
+  "mapAttributionOsmHot": "Map data © [OpenStreetMap](https://www.openstreetmap.org/copyright) contributors • Tiles by [HOT](https://www.hotosm.org/) • Hosted by [OSM France](https://openstreetmap.fr/)",
+  "@mapAttributionOsmHot": {},
+  "mapAttributionStamen": "Map data © [OpenStreetMap](https://www.openstreetmap.org/copyright) contributors • Tiles by [Stamen Design](http://stamen.com), [CC BY 3.0](http://creativecommons.org/licenses/by/3.0)",
+  "@mapAttributionStamen": {},
+
+  "viewerInfoOpenEmbeddedFailureFeedback": "Failed to extract embedded data",
+  "@viewerInfoOpenEmbeddedFailureFeedback": {},
+  "viewerInfoOpenLinkText": "Open",
+  "@viewerInfoOpenLinkText": {},
+  "viewerInfoViewXmlLinkText": "View XML",
+  "@viewerInfoViewXmlLinkText": {},
+
+  "viewerInfoSearchFieldLabel": "Search metadata",
+  "@viewerInfoSearchFieldLabel": {},
+  "viewerInfoSearchEmpty": "No matching keys",
+  "@viewerInfoSearchEmpty": {},
+  "viewerInfoSearchSuggestionDate": "Date & time",
+  "@viewerInfoSearchSuggestionDate": {},
+  "viewerInfoSearchSuggestionDescription": "Description",
+  "@viewerInfoSearchSuggestionDescription": {},
+  "viewerInfoSearchSuggestionDimensions": "Dimensions",
+  "@viewerInfoSearchSuggestionDimensions": {},
+  "viewerInfoSearchSuggestionResolution": "Resolution",
+  "@viewerInfoSearchSuggestionResolution": {},
+  "viewerInfoSearchSuggestionRights": "Rights",
+  "@viewerInfoSearchSuggestionRights": {},
+
+  "panoramaEnableSensorControl": "Enable sensor control",
+  "@panoramaEnableSensorControl": {},
+  "panoramaDisableSensorControl": "Disable sensor control",
+  "@panoramaDisableSensorControl": {},
+
+  "sourceViewerPageTitle": "Source",
+  "@sourceViewerPageTitle": {}
+}

lib/l10n/app_ko.arb

@@ -0,0 +1,318 @@
+{
+  "appName": "아베스",
+  "welcomeMessage": "아베스 사용을 환영합니다",
+  "welcomeAnalyticsToggle": "진단 데이터를 보내는 것에 동의합니다 (선택)",
+  "welcomeTermsToggle": "이용약관에 동의합니다",
+
+  "applyButtonLabel": "확인",
+  "deleteButtonLabel": "삭제",
+  "hideButtonLabel": "숨기기",
+  "continueButtonLabel": "다음",
+  "clearTooltip": "초기화",
+  "previousTooltip": "이전",
+  "nextTooltip": "다음",
+
+  "doubleBackExitMessage": "종료하려면 한번 더 누르세요.",
+
+  "sourceStateLoading": "로딩 중",
+  "sourceStateCataloguing": "분석 중",
+  "sourceStateLocating": "장소 찾는 중",
+
+  "chipActionDelete": "삭제",
+  "chipActionGoToAlbumPage": "앨범 페이지에서 보기",
+  "chipActionGoToCountryPage": "국가 페이지에서 보기",
+  "chipActionGoToTagPage": "태그 페이지에서 보기",
+  "chipActionHide": "숨기기",
+  "chipActionPin": "고정",
+  "chipActionUnpin": "고정 해제",
+  "chipActionRename": "이름 변경",
+  "chipActionSetCover": "대표 이미지 변경",
+
+  "entryActionDelete": "삭제",
+  "entryActionExport": "내보내기",
+  "entryActionInfo": "상세정보",
+  "entryActionRename": "이름 변경",
+  "entryActionRotateCCW": "좌회전",
+  "entryActionRotateCW": "우회전",
+  "entryActionFlip": "좌우 뒤집기",
+  "entryActionPrint": "인쇄",
+  "entryActionShare": "공유",
+  "entryActionViewSource": "소스 코드 보기",
+  "entryActionEdit": "편집…",
+  "entryActionOpen": "다른 앱에서 열기…",
+  "entryActionSetAs": "다음 용도로 사용…",
+  "entryActionOpenMap": "지도에서 보기…",
+  "entryActionAddFavourite": "즐겨찾기에 추가",
+  "entryActionRemoveFavourite": "즐겨찾기에서 삭제",
+
+  "filterFavouriteLabel": "즐겨찾기",
+  "filterLocationEmptyLabel": "장소 없음",
+  "filterTagEmptyLabel": "태그 없음",
+  "filterTypeAnimatedLabel": "애니메이션",
+  "filterTypePanoramaLabel": "파노라마",
+  "filterTypeSphericalVideoLabel": "360° 동영상",
+  "filterTypeGeotiffLabel": "GeoTIFF",
+  "filterMimeImageLabel": "사진",
+  "filterMimeVideoLabel": "동영상",
+
+  "coordinateFormatDms": "도분초",
+  "coordinateFormatDecimal": "소수점",
+
+  "mapStyleGoogleNormal": "구글 지도",
+  "mapStyleGoogleHybrid": "구글 지도 (위성)",
+  "mapStyleGoogleTerrain": "구글 지도 (지형)",
+  "mapStyleOsmHot": "Humanitarian OSM",
+  "mapStyleStamenToner": "Stamen 토너",
+  "mapStyleStamenWatercolor": "Stamen 수채화",
+
+  "keepScreenOnNever": "자동 꺼짐",
+  "keepScreenOnViewerOnly": "뷰어 이용 시 작동",
+  "keepScreenOnAlways": "항상 켜짐",
+
+  "albumTierPinned": "고정",
+  "albumTierSpecial": "기본",
+  "albumTierApps": "앱",
+  "albumTierRegular": "일반",
+
+  "storageVolumeDescriptionFallbackPrimary": "내장 메모리",
+  "storageVolumeDescriptionFallbackNonPrimary": "SD 카드",
+  "rootDirectoryDescription": "루트 폴더",
+  "otherDirectoryDescription": "“{name}” 폴더",
+  "storageAccessDialogTitle": "저장공간 접근",
+  "storageAccessDialogMessage": "파일에 접근하도록 다음 화면에서 “{volume}”의 {directory}를 선택하세요.",
+  "restrictedAccessDialogTitle": "접근 제한",
+  "restrictedAccessDialogMessage": "“{volume}”의 {directory}에 있는 파일의 접근이 제한됩니다.\n\n기본으로 설치된 갤러리나 파일 관리 앱을 사용해서 다른 폴더로 파일을 이동하세요.",
+  "notEnoughSpaceDialogTitle": "저장공간 부족",
+  "notEnoughSpaceDialogMessage": "“{volume}”에 필요 공간은 {neededSize}인데 사용 가능한 용량은 {freeSize}만 남아있습니다.",
+
+  "addShortcutDialogLabel": "바로가기 라벨",
+  "addShortcutButtonLabel": "추가",
+
+  "noMatchingAppDialogTitle": "처리할 앱 없음",
+  "noMatchingAppDialogMessage": "이 작업을 처리할 수 있는 앱이 없습니다.",
+
+  "deleteEntriesConfirmationDialogMessage": "{count, plural, =1{이 항목을 삭제하시겠습니까?} other{항목 {count}개를 삭제하시겠습니까?}}",
+
+  "setCoverDialogTitle": "대표 이미지 변경",
+  "setCoverDialogLatest": "최근 항목",
+  "setCoverDialogCustom": "직접 설정",
+
+  "hideFilterConfirmationDialogMessage": "이 필터에 맞는 사진과 동영상이 보이지 않을 것입니다. “개인정보 보호” 설정을 수정하면 다시 보일 수 있습니다.\n\n이 필터를 숨기시겠습니까?",
+
+  "newAlbumDialogTitle": "새 앨범 만들기",
+  "newAlbumDialogNameLabel": "앨범 이름",
+  "newAlbumDialogNameLabelAlreadyExistsHelper": "사용 중인 이름입니다",
+  "newAlbumDialogStorageLabel": "저장공간:",
+
+  "renameAlbumDialogLabel": "앨범 이름",
+  "renameAlbumDialogLabelAlreadyExistsHelper": "사용 중인 이름입니다",
+
+  "deleteAlbumConfirmationDialogMessage": "{count, plural, other{이 앨범의 항목 {count}개를 삭제하시겠습니까?}}",
+
+  "renameEntryDialogLabel": "이름",
+
+  "genericSuccessFeedback": "정상 처리됐습니다",
+  "genericFailureFeedback": "오류가 발생했습니다",
+
+  "menuActionSort": "정렬",
+  "menuActionGroup": "묶음",
+  "menuActionStats": "통계",
+
+  "aboutPageTitle": "앱 정보",
+  "aboutFlutter": "플러터",
+  "aboutUpdate": "업데이트 사용 가능",
+  "aboutUpdateLinks1": "앱의 최신 버전을",
+  "aboutUpdateLinks2": "와",
+  "aboutUpdateLinks3": "에서 다운로드 사용 가능합니다.",
+  "aboutUpdateGithub": "깃허브",
+  "aboutUpdateGooglePlay": "구글 플레이",
+  "aboutCredits": "크레딧",
+  "aboutCreditsWorldAtlas1": "이 앱은",
+  "aboutCreditsWorldAtlas2": "의 TopoJSON 파일(ISC 라이선스)을 이용합니다.",
+  "aboutLicenses": "오픈 소스 라이선스",
+  "aboutLicensesBanner": "이 앱은 다음의 오픈 소스 패키지와 라이브러리를 이용합니다.",
+  "aboutLicensesSortTooltip": "정렬",
+  "aboutLicensesSortByName": "이름순 정렬",
+  "aboutLicensesSortByLicense": "라이선스순 정렬",
+  "aboutLicensesAndroidLibraries": "안드로이드 라이브러리",
+  "aboutLicensesFlutterPlugins": "플러터 플러그인",
+  "aboutLicensesFlutterPackages": "플러터 패키지",
+  "aboutLicensesDartPackages": "다트 패키지",
+  "aboutLicensesShowAllButtonLabel": "라이선스 모두 보기",
+
+  "collectionPageTitle": "미디어",
+  "collectionPickPageTitle": "항목 선택",
+  "collectionSelectionPageTitle": "{count, plural, =0{항목 선택} other{{count}개}}",
+
+  "collectionActionAddShortcut": "홈 화면에 추가",
+  "collectionActionSelect": "선택",
+  "collectionActionSelectAll": "모두 선택",
+  "collectionActionSelectNone": "모두 해제",
+  "collectionActionCopy": "앨범으로 복사",
+  "collectionActionMove": "앨범으로 이동",
+  "collectionActionRefreshMetadata": "새로 분석",
+
+  "collectionSortTitle": "정렬",
+  "collectionSortDate": "날짜",
+  "collectionSortSize": "크기",
+  "collectionSortName": "이름",
+
+  "collectionGroupTitle": "묶음",
+  "collectionGroupAlbum": "앨범별로",
+  "collectionGroupMonth": "월별로",
+  "collectionGroupDay": "날짜별로",
+  "collectionGroupNone": "묶음 없음",
+
+  "sectionUnknown": "없음",
+  "dateToday": "오늘",
+  "dateYesterday": "어제",
+  "dateThisMonth": "이번 달",
+  "errorUnsupportedMimeType": "{mimeType} 지원되지 않음",
+  "collectionDeleteFailureFeedback": "{count, plural, other{항목 {count}개를 삭제하지 못했습니다}}",
+  "collectionCopyFailureFeedback": "{count, plural, other{항목 {count}개를 복사하지 못했습니다}}",
+  "collectionMoveFailureFeedback": "{count, plural, other{항목 {count}개를 이동하지 못했습니다}}",
+  "collectionExportFailureFeedback": "{count, plural, other{항목 {count}개를 내보내지 못했습니다}}",
+  "collectionCopySuccessFeedback": "{count, plural, other{항목 {count}개를 복사했습니다}}",
+  "collectionMoveSuccessFeedback": "{count, plural, other{항목 {count}개를 이동했습니다}}",
+
+  "collectionEmptyFavourites": "즐겨찾기가 없습니다",
+  "collectionEmptyVideos": "동영상이 없습니다",
+  "collectionEmptyImages": "사진이 없습니다",
+
+  "collectionSelectSectionTooltip": "묶음 선택",
+  "collectionDeselectSectionTooltip": "묶음 선택 해제",
+
+  "drawerCollectionAll": "모든 미디어",
+  "drawerCollectionVideos": "동영상",
+  "drawerCollectionFavourites": "즐겨찾기",
+
+  "chipSortTitle": "정렬",
+  "chipSortDate": "날짜",
+  "chipSortName": "이름",
+  "chipSortCount": "항목수",
+
+  "albumGroupTitle": "묶음",
+  "albumGroupTier": "단계별로",
+  "albumGroupVolume": "저장공간별로",
+  "albumGroupNone": "묶음 없음",
+
+  "albumPickPageTitleCopy": "앨범으로 복사",
+  "albumPickPageTitleExport": "앨범으로 내보내기",
+  "albumPickPageTitleMove": "앨범으로 이동",
+
+  "albumPageTitle": "앨범",
+  "albumEmpty": "앨범이 없습니다",
+  "createAlbumTooltip": "새 앨범 만들기",
+  "createAlbumButtonLabel": "추가",
+
+  "countryPageTitle": "국가",
+  "countryEmpty": "국가가 없습니다",
+
+  "tagPageTitle": "태그",
+  "tagEmpty": "태그가 없습니다",
+
+  "searchCollectionFieldHint": "미디어 검색",
+  "searchSectionRecent": "최근 검색기록",
+  "searchSectionAlbums": "앨범",
+  "searchSectionCountries": "국가",
+  "searchSectionPlaces": "장소",
+  "searchSectionTags": "태그",
+
+  "settingsPageTitle": "설정",
+  "settingsSystemDefault": "시스템",
+
+  "settingsSectionNavigation": "탐색",
+  "settingsHome": "홈",
+  "settingsDoubleBackExit": "뒤로가기 두번 눌러 앱 종료하기",
+
+  "settingsSectionDisplay": "디스플레이",
+  "settingsLanguage": "언어",
+  "settingsKeepScreenOnTile": "화면 자동 꺼짐 방지",
+  "settingsKeepScreenOnTitle": "화면 자동 꺼짐 방지",
+  "settingsRasterImageBackground": "래스터 그래픽스 배경",
+  "settingsVectorImageBackground": "벡터 그래픽스 배경",
+  "settingsCoordinateFormatTile": "좌표 표현",
+  "settingsCoordinateFormatTitle": "좌표 표현",
+
+  "settingsSectionThumbnails": "섬네일",
+  "settingsThumbnailShowLocationIcon": "위치 아이콘 표시",
+  "settingsThumbnailShowRawIcon": "Raw 아이콘 표시",
+  "settingsThumbnailShowVideoDuration": "동영상 길이 표시",
+
+  "settingsSectionViewer": "뷰어",
+  "settingsViewerShowMinimap": "미니맵 표시",
+  "settingsViewerShowInformation": "상세 정보 표시",
+  "settingsViewerShowInformationSubtitle": "제목, 날짜, 장소 등 표시",
+  "settingsViewerShowShootingDetails": "촬영 정보 표시",
+
+  "settingsSectionSearch": "검색",
+  "settingsSaveSearchHistory": "검색기록",
+
+  "settingsSectionPrivacy": "개인정보 보호",
+  "settingsEnableAnalytics": "진단 데이터 보내기",
+
+  "settingsHiddenFiltersTile": "숨겨진 필터",
+  "settingsHiddenFiltersTitle": "숨겨진 필터",
+  "settingsHiddenFiltersBanner": "이 필터에 맞는 사진과 동영상이 숨겨지고 있으며 이 앱에서 보여지지 않을 것입니다.",
+  "settingsHiddenFiltersEmpty": "숨겨진 필터가 없습니다",
+
+  "settingsStorageAccessTile": "저장공간 접근",
+  "settingsStorageAccessTitle": "저장공간 접근",
+  "settingsStorageAccessBanner": "어떤 폴더는 사용자의 허용을 받아야만 앱이 파일에 접근이 가능합니다. 이 화면에 허용을 받은 폴더를 확인할 수 있으며 원하지 않으면 취소할 수 있습니다.",
+  "settingsStorageAccessEmpty": "접근 허용이 없습니다",
+  "settingsStorageAccessRevokeTooltip": "취소",
+
+  "statsPageTitle": "통계",
+  "statsImage": "{count, plural, other{사진}}",
+  "statsVideo": "{count, plural, other{동영상}}",
+  "statsWithGps": "{count, plural, other{{count}개 위치가 있음}}",
+  "statsTopCountries": "국가 랭킹",
+  "statsTopPlaces": "장소 랭킹",
+  "statsTopTags": "태그 랭킹",
+
+  "viewerOpenPanoramaButtonLabel": "파노라마 열기",
+  "viewerOpenTooltip": "열기",
+  "viewerPauseTooltip": "일시정지",
+  "viewerPlayTooltip": "재생",
+  "viewerErrorUnknown": "아이구!",
+  "viewerErrorDoesNotExist": "파일이 존재하지 않습니다.",
+
+  "viewerInfoPageTitle": "상세정보",
+  "viewerInfoBackToViewerTooltip": "뷰어로",
+
+  "viewerInfoUnknown": "알 수 없음",
+  "viewerInfoLabelTitle": "제목",
+  "viewerInfoLabelDate": "날짜",
+  "viewerInfoLabelResolution": "해상도",
+  "viewerInfoLabelSize": "크기",
+  "viewerInfoLabelUri": "URI",
+  "viewerInfoLabelPath": "경로",
+  "viewerInfoLabelDuration": "길이",
+  "viewerInfoLabelOwner": "패키지",
+  "viewerInfoLabelCoordinates": "좌표",
+  "viewerInfoLabelAddress": "주소",
+
+  "viewerInfoMapStyleTitle": "지도 유형",
+  "viewerInfoMapStyleTooltip": "지도 유형 선택",
+  "viewerInfoMapZoomInTooltip": "확대",
+  "viewerInfoMapZoomOutTooltip": "축소",
+  "mapAttributionOsmHot": "지도 데이터 © [OpenStreetMap](https://www.openstreetmap.org/copyright) 기여자 • 타일 [HOT](https://www.hotosm.org/) • 호스팅 [OSM France](https://openstreetmap.fr/)",
+  "mapAttributionStamen": "지도 데이터 © [OpenStreetMap](https://www.openstreetmap.org/copyright) 기여자 • 타일 [Stamen Design](http://stamen.com), [CC BY 3.0](http://creativecommons.org/licenses/by/3.0)",
+
+  "viewerInfoOpenEmbeddedFailureFeedback": "첨부 데이터 추출 오류",
+  "viewerInfoOpenLinkText": "열기",
+  "viewerInfoViewXmlLinkText": "XML 보기",
+
+  "viewerInfoSearchFieldLabel": "메타데이터 검색",
+  "viewerInfoSearchEmpty": "결과가 없습니다",
+  "viewerInfoSearchSuggestionDate": "날짜 및 시간",
+  "viewerInfoSearchSuggestionDescription": "설명",
+  "viewerInfoSearchSuggestionDimensions": "크기",
+  "viewerInfoSearchSuggestionResolution": "해상도",
+  "viewerInfoSearchSuggestionRights": "권리",
+
+  "panoramaEnableSensorControl": "센서 제어 활성화",
+  "panoramaDisableSensorControl": "센서 제어 비활성화",
+
+  "sourceViewerPageTitle": "소스 코드"
+}

lib/main.dart

@@ -1,14 +1,18 @@
 import 'dart:isolate';
 import 'dart:ui';
 
+import 'package:aves/app_mode.dart';
 import 'package:aves/model/settings/settings.dart';
 import 'package:aves/model/source/collection_source.dart';
 import 'package:aves/model/source/media_store_source.dart';
+import 'package:aves/services/services.dart';
 import 'package:aves/theme/durations.dart';
 import 'package:aves/theme/icons.dart';
+import 'package:aves/theme/themes.dart';
 import 'package:aves/utils/debouncer.dart';
 import 'package:aves/widgets/common/behaviour/route_tracker.dart';
 import 'package:aves/widgets/common/behaviour/routes.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
 import 'package:aves/widgets/common/providers/highlight_info_provider.dart';
 import 'package:aves/widgets/home_page.dart';
 import 'package:aves/widgets/welcome_page.dart';
@@ -19,6 +23,8 @@ import 'package:firebase_crashlytics/firebase_crashlytics.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:flutter_localized_locales/flutter_localized_locales.dart';
 import 'package:overlay_support/overlay_support.dart';
 import 'package:provider/provider.dart';
 
@@ -37,16 +43,13 @@ void main() {
   runApp(AvesApp());
 }
 
-enum AppMode { main, pick, view }
-
 class AvesApp extends StatefulWidget {
-  static AppMode mode;
-
   @override
   _AvesAppState createState() => _AvesAppState();
 }
 
 class _AvesAppState extends State<AvesApp> {
+  final ValueNotifier<AppMode> appModeNotifier = ValueNotifier(AppMode.main);
   Future<void> _appSetup;
   final _mediaStoreSource = MediaStoreSource();
   final Debouncer _contentChangeDebouncer = Debouncer(delay: Durations.contentChangeDebounceDelay);
@@ -59,49 +62,12 @@ class _AvesAppState extends State<AvesApp> {
   final EventChannel _newIntentChannel = EventChannel('deckers.thibault/aves/intent');
   final GlobalKey<NavigatorState> _navigatorKey = GlobalKey(debugLabel: 'app-navigator');
 
-  static const accentColor = Colors.indigoAccent;
-
-  static final darkTheme = ThemeData(
-    brightness: Brightness.dark,
-    accentColor: accentColor,
-    scaffoldBackgroundColor: Colors.grey[900],
-    buttonColor: accentColor,
-    dialogBackgroundColor: Colors.grey[850],
-    toggleableActiveColor: accentColor,
-    tooltipTheme: TooltipThemeData(
-      verticalOffset: 32,
-    ),
-    appBarTheme: AppBarTheme(
-      textTheme: TextTheme(
-        headline6: TextStyle(
-          fontSize: 20,
-          fontWeight: FontWeight.normal,
-          fontFeatures: [FontFeature.enable('smcp')],
-        ),
-      ),
-    ),
-    elevatedButtonTheme: ElevatedButtonThemeData(
-      style: ElevatedButton.styleFrom(
-        primary: accentColor,
-      ),
-    ),
-    outlinedButtonTheme: OutlinedButtonThemeData(
-      style: OutlinedButton.styleFrom(
-        primary: accentColor,
-      ),
-    ),
-    textButtonTheme: TextButtonThemeData(
-      style: TextButton.styleFrom(
-        primary: Colors.white,
-      ),
-    ),
-  );
-
   Widget getFirstPage({Map intentData}) => settings.hasAcceptedTerms ? HomePage(intentData: intentData) : WelcomePage();
 
   @override
   void initState() {
     super.initState();
+    initPlatformServices();
     _appSetup = _setup();
     _contentChangeChannel.receiveBroadcastStream().listen((event) => _onContentChange(event as String));
     _newIntentChannel.receiveBroadcastStream().listen((event) => _onNewIntent(event as Map));
@@ -113,27 +79,41 @@ class _AvesAppState extends State<AvesApp> {
     // so it can be used during navigation transitions
     return ChangeNotifierProvider<Settings>.value(
       value: settings,
-      child: Provider<CollectionSource>.value(
-        value: _mediaStoreSource,
-        child: HighlightInfoProvider(
-          child: OverlaySupport(
-            child: FutureBuilder<void>(
-              future: _appSetup,
-              builder: (context, snapshot) {
-                final home = (!snapshot.hasError && snapshot.connectionState == ConnectionState.done)
-                    ? getFirstPage()
-                    : Scaffold(
-                        body: snapshot.hasError ? _buildError(snapshot.error) : SizedBox.shrink(),
-                      );
-                return MaterialApp(
-                  navigatorKey: _navigatorKey,
-                  home: home,
-                  navigatorObservers: _navigatorObservers,
-                  title: 'Aves',
-                  darkTheme: darkTheme,
-                  themeMode: ThemeMode.dark,
-                );
-              },
+      child: ListenableProvider<ValueNotifier<AppMode>>.value(
+        value: appModeNotifier,
+        child: Provider<CollectionSource>.value(
+          value: _mediaStoreSource,
+          child: HighlightInfoProvider(
+            child: OverlaySupport(
+              child: FutureBuilder<void>(
+                future: _appSetup,
+                builder: (context, snapshot) {
+                  final initialized = !snapshot.hasError && snapshot.connectionState == ConnectionState.done;
+                  final home = initialized
+                      ? getFirstPage()
+                      : Scaffold(
+                          body: snapshot.hasError ? _buildError(snapshot.error) : SizedBox(),
+                        );
+                  return Selector<Settings, Locale>(
+                      selector: (context, s) => s.locale,
+                      builder: (context, settingsLocale, child) {
+                        return MaterialApp(
+                          navigatorKey: _navigatorKey,
+                          home: home,
+                          navigatorObservers: _navigatorObservers,
+                          onGenerateTitle: (context) => context.l10n.appName,
+                          darkTheme: Themes.darkTheme,
+                          themeMode: ThemeMode.dark,
+                          locale: settingsLocale,
+                          localizationsDelegates: [
+                            ...AppLocalizations.localizationsDelegates,
+                            LocaleNamesLocalizationsDelegate(),
+                          ],
+                          supportedLocales: AppLocalizations.supportedLocales,
+                        );
+                      });
+                },
+              ),
             ),
           ),
         ),
@@ -183,7 +163,7 @@ class _AvesAppState extends State<AvesApp> {
     debugPrint('$runtimeType onNewIntent with intentData=$intentData');
 
     // do not reset when relaunching the app
-    if (AvesApp.mode == AppMode.main && (intentData == null || intentData.isEmpty == true)) return;
+    if (appModeNotifier.value == AppMode.main && (intentData == null || intentData.isEmpty == true)) return;
 
     FirebaseCrashlytics.instance.log('New intent');
     _navigatorKey.currentState.pushReplacement(DirectMaterialPageRoute(

lib/model/actions/chip_actions.dart

@@ -1,10 +1,10 @@
 import 'package:aves/theme/icons.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
 import 'package:flutter/widgets.dart';
 
 enum ChipSetAction {
   group,
   sort,
-  refresh,
   stats,
 }
 
@@ -14,30 +14,33 @@ enum ChipAction {
   pin,
   unpin,
   rename,
+  setCover,
   goToAlbumPage,
   goToCountryPage,
   goToTagPage,
 }
 
 extension ExtraChipAction on ChipAction {
-  String getText() {
+  String getText(BuildContext context) {
     switch (this) {
       case ChipAction.delete:
-        return 'Delete';
+        return context.l10n.chipActionDelete;
       case ChipAction.goToAlbumPage:
-        return 'Show in Albums';
+        return context.l10n.chipActionGoToAlbumPage;
       case ChipAction.goToCountryPage:
-        return 'Show in Countries';
+        return context.l10n.chipActionGoToCountryPage;
       case ChipAction.goToTagPage:
-        return 'Show in Tags';
+        return context.l10n.chipActionGoToTagPage;
       case ChipAction.hide:
-        return 'Hide';
+        return context.l10n.chipActionHide;
       case ChipAction.pin:
-        return 'Pin to top';
+        return context.l10n.chipActionPin;
       case ChipAction.unpin:
-        return 'Unpin from top';
+        return context.l10n.chipActionUnpin;
       case ChipAction.rename:
-        return 'Rename';
+        return context.l10n.chipActionRename;
+      case ChipAction.setCover:
+        return context.l10n.chipActionSetCover;
     }
     return null;
   }
@@ -59,6 +62,8 @@ extension ExtraChipAction on ChipAction {
         return AIcons.pin;
       case ChipAction.rename:
         return AIcons.rename;
+      case ChipAction.setCover:
+        return AIcons.setCover;
     }
     return null;
   }

lib/model/actions/collection_actions.dart

@@ -2,7 +2,6 @@ enum CollectionAction {
   addShortcut,
   sort,
   group,
-  refresh,
   select,
   selectAll,
   selectNone,

lib/model/actions/entry_actions.dart

@@ -1,4 +1,5 @@
 import 'package:aves/theme/icons.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
 import 'package:flutter/widgets.dart';
 
 enum EntryAction {
@@ -46,41 +47,41 @@ class EntryActions {
 }
 
 extension ExtraEntryAction on EntryAction {
-  String getText() {
+  String getText(BuildContext context) {
     switch (this) {
       // in app actions
       case EntryAction.toggleFavourite:
         // different data depending on toggle state
         return null;
       case EntryAction.delete:
-        return 'Delete';
+        return context.l10n.entryActionDelete;
       case EntryAction.export:
-        return 'Export';
+        return context.l10n.entryActionExport;
       case EntryAction.info:
-        return 'Info';
+        return context.l10n.entryActionInfo;
       case EntryAction.rename:
-        return 'Rename';
+        return context.l10n.entryActionRename;
       case EntryAction.rotateCCW:
-        return 'Rotate counterclockwise';
+        return context.l10n.entryActionRotateCCW;
       case EntryAction.rotateCW:
-        return 'Rotate clockwise';
+        return context.l10n.entryActionRotateCW;
       case EntryAction.flip:
-        return 'Flip horizontally';
+        return context.l10n.entryActionFlip;
       case EntryAction.print:
-        return 'Print';
+        return context.l10n.entryActionPrint;
       case EntryAction.share:
-        return 'Share';
+        return context.l10n.entryActionShare;
       case EntryAction.viewSource:
-        return 'View source';
+        return context.l10n.entryActionViewSource;
       // external app actions
       case EntryAction.edit:
-        return 'Edit with…';
+        return context.l10n.entryActionEdit;
       case EntryAction.open:
-        return 'Open with…';
+        return context.l10n.entryActionOpen;
       case EntryAction.setAs:
-        return 'Set as…';
+        return context.l10n.entryActionSetAs;
       case EntryAction.openMap:
-        return 'Show on map…';
+        return context.l10n.entryActionOpenMap;
       case EntryAction.debug:
         return 'Debug';
     }

lib/model/availability.dart

@@ -8,17 +8,29 @@ import 'package:google_api_availability/google_api_availability.dart';
 import 'package:package_info/package_info.dart';
 import 'package:version/version.dart';
 
-final AvesAvailability availability = AvesAvailability._private();
+abstract class AvesAvailability {
+  void onResume();
 
-class AvesAvailability {
+  Future<bool> get isConnected;
+
+  Future<bool> get hasPlayServices;
+
+  Future<bool> get canLocatePlaces;
+
+  Future<bool> get isNewVersionAvailable;
+}
+
+class LiveAvesAvailability implements AvesAvailability {
   bool _isConnected, _hasPlayServices, _isNewVersionAvailable;
 
-  AvesAvailability._private() {
+  LiveAvesAvailability() {
     Connectivity().onConnectivityChanged.listen(_updateConnectivityFromResult);
   }
 
+  @override
   void onResume() => _isConnected = null;
 
+  @override
   Future<bool> get isConnected async {
     if (_isConnected != null) return SynchronousFuture(_isConnected);
     final result = await (Connectivity().checkConnectivity());
@@ -34,6 +46,7 @@ class AvesAvailability {
     }
   }
 
+  @override
   Future<bool> get hasPlayServices async {
     if (_hasPlayServices != null) return SynchronousFuture(_hasPlayServices);
     final result = await GoogleApiAvailability.instance.checkGooglePlayServicesAvailability();
@@ -43,8 +56,10 @@ class AvesAvailability {
   }
 
   // local geocoding with `geocoder` requires Play Services
+  @override
   Future<bool> get canLocatePlaces => Future.wait<bool>([isConnected, hasPlayServices]).then((results) => results.every((result) => result));
 
+  @override
   Future<bool> get isNewVersionAvailable async {
     if (_isNewVersionAvailable != null) return SynchronousFuture(_isNewVersionAvailable);
 

lib/model/covers.dart

@@ -0,0 +1,111 @@
+import 'package:aves/model/entry.dart';
+import 'package:aves/model/filters/album.dart';
+import 'package:aves/model/filters/filters.dart';
+import 'package:aves/services/services.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/widgets.dart';
+
+final Covers covers = Covers._private();
+
+class Covers with ChangeNotifier {
+  Set<CoverRow> _rows = {};
+
+  Covers._private();
+
+  Future<void> init() async {
+    _rows = await metadataDb.loadCovers();
+  }
+
+  int get count => _rows.length;
+
+  int coverContentId(CollectionFilter filter) => _rows.firstWhere((row) => row.filter == filter, orElse: () => null)?.contentId;
+
+  Future<void> set(CollectionFilter filter, int contentId) async {
+    // erase contextual properties from filters before saving them
+    if (filter is AlbumFilter) {
+      filter = AlbumFilter((filter as AlbumFilter).album, null);
+    }
+
+    final row = CoverRow(filter: filter, contentId: contentId);
+    _rows.removeWhere((row) => row.filter == filter);
+    if (contentId == null) {
+      await metadataDb.removeCovers({row});
+    } else {
+      _rows.add(row);
+      await metadataDb.addCovers({row});
+    }
+
+    notifyListeners();
+  }
+
+  Future<void> moveEntry(int oldContentId, AvesEntry entry) async {
+    final oldRows = _rows.where((row) => row.contentId == oldContentId).toSet();
+    if (oldRows.isEmpty) return;
+
+    for (final oldRow in oldRows) {
+      final filter = oldRow.filter;
+      _rows.remove(oldRow);
+      if (filter.test(entry)) {
+        final newRow = CoverRow(filter: filter, contentId: entry.contentId);
+        await metadataDb.updateCoverEntryId(oldRow.contentId, newRow);
+        _rows.add(newRow);
+      } else {
+        await metadataDb.removeCovers({oldRow});
+      }
+    }
+
+    notifyListeners();
+  }
+
+  Future<void> removeEntries(Set<AvesEntry> entries) async {
+    final contentIds = entries.map((entry) => entry.contentId).toSet();
+    final removedRows = _rows.where((row) => contentIds.contains(row.contentId)).toSet();
+
+    await metadataDb.removeCovers(removedRows);
+    _rows.removeAll(removedRows);
+
+    notifyListeners();
+  }
+
+  Future<void> clear() async {
+    await metadataDb.clearCovers();
+    _rows.clear();
+
+    notifyListeners();
+  }
+}
+
+@immutable
+class CoverRow {
+  final CollectionFilter filter;
+  final int contentId;
+
+  const CoverRow({
+    @required this.filter,
+    @required this.contentId,
+  });
+
+  factory CoverRow.fromMap(Map map) {
+    return CoverRow(
+      filter: CollectionFilter.fromJson(map['filter']),
+      contentId: map['contentId'],
+    );
+  }
+
+  Map<String, dynamic> toMap() => {
+        'filter': filter.toJson(),
+        'contentId': contentId,
+      };
+
+  @override
+  bool operator ==(Object other) {
+    if (other.runtimeType != runtimeType) return false;
+    return other is CoverRow && other.filter == filter && other.contentId == contentId;
+  }
+
+  @override
+  int get hashCode => hashValues(filter, contentId);
+
+  @override
+  String toString() => '$runtimeType#${shortHash(this)}{filter=$filter, contentId=$contentId}';
+}

lib/model/entry.dart

@@ -1,15 +1,14 @@
 import 'dart:async';
 
 import 'package:aves/geo/countries.dart';
-import 'package:aves/model/availability.dart';
 import 'package:aves/model/entry_cache.dart';
-import 'package:aves/model/favourite_repo.dart';
+import 'package:aves/model/favourites.dart';
 import 'package:aves/model/metadata.dart';
-import 'package:aves/model/metadata_db.dart';
 import 'package:aves/model/multipage.dart';
-import 'package:aves/services/image_file_service.dart';
-import 'package:aves/services/metadata_service.dart';
+import 'package:aves/model/settings/settings.dart';
+import 'package:aves/services/geocoding_service.dart';
 import 'package:aves/services/service_policy.dart';
+import 'package:aves/services/services.dart';
 import 'package:aves/services/svg_metadata_service.dart';
 import 'package:aves/utils/change_notifier.dart';
 import 'package:aves/utils/math_utils.dart';
@@ -18,7 +17,6 @@ import 'package:collection/collection.dart';
 import 'package:country_code/country_code.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
-import 'package:geocoder/geocoder.dart';
 import 'package:latlong/latlong.dart';
 import 'package:path/path.dart' as ppath;
 
@@ -33,7 +31,7 @@ class AvesEntry {
   int height;
   int sourceRotationDegrees;
   final int sizeBytes;
-  String sourceTitle;
+  String _sourceTitle;
 
   // `dateModifiedSecs` can be missing in viewer mode
   int _dateModifiedSecs;
@@ -45,10 +43,6 @@ class AvesEntry {
 
   final AChangeNotifier imageChangeNotifier = AChangeNotifier(), metadataChangeNotifier = AChangeNotifier(), addressChangeNotifier = AChangeNotifier();
 
-  // Local geocoding requires Google Play Services
-  // Google remote geocoding requires an API key and is not free
-  final Future<List<Address>> Function(Coordinates coordinates) _findAddresses = Geocoder.local.findAddressesFromCoordinates;
-
   // TODO TLAD make it dynamic if it depends on OS/lib versions
   static const List<String> undecodable = [MimeTypes.crw, MimeTypes.djvu, MimeTypes.psd];
 
@@ -62,13 +56,14 @@ class AvesEntry {
     @required this.height,
     this.sourceRotationDegrees,
     this.sizeBytes,
-    this.sourceTitle,
+    String sourceTitle,
     int dateModifiedSecs,
     this.sourceDateTakenMillis,
     this.durationMillis,
   })  : assert(width != null),
         assert(height != null) {
     this.path = path;
+    this.sourceTitle = sourceTitle;
     this.dateModifiedSecs = dateModifiedSecs;
   }
 
@@ -77,14 +72,14 @@ class AvesEntry {
   bool get canHaveAlpha => MimeTypes.alphaImages.contains(mimeType);
 
   AvesEntry copyWith({
-    @required String uri,
-    @required String path,
-    @required int contentId,
-    @required int dateModifiedSecs,
+    String uri,
+    String path,
+    int contentId,
+    int dateModifiedSecs,
   }) {
     final copyContentId = contentId ?? this.contentId;
     final copied = AvesEntry(
-      uri: uri ?? uri,
+      uri: uri ?? this.uri,
       path: path ?? this.path,
       contentId: copyContentId,
       sourceMimeType: sourceMimeType,
@@ -93,7 +88,7 @@ class AvesEntry {
       sourceRotationDegrees: sourceRotationDegrees,
       sizeBytes: sizeBytes,
       sourceTitle: sourceTitle,
-      dateModifiedSecs: dateModifiedSecs,
+      dateModifiedSecs: dateModifiedSecs ?? this.dateModifiedSecs,
       sourceDateTakenMillis: sourceDateTakenMillis,
       durationMillis: durationMillis,
     )
@@ -241,9 +236,7 @@ class AvesEntry {
 
   bool get supportTiling => _supportedByBitmapRegionDecoder || mimeType == MimeTypes.tiff;
 
-  // as of panorama v0.3.1, the `Panorama` widget throws on initialization when the image is already resolved
-  // so we use tiles for panoramas as a workaround to not collide with the `panorama` package resolution
-  bool get useTiles => supportTiling && (width > 4096 || height > 4096 || is360);
+  bool get useTiles => supportTiling && (width > 4096 || height > 4096);
 
   bool get isRaw => MimeTypes.rawImages.contains(mimeType);
 
@@ -347,6 +340,13 @@ class AvesEntry {
 
   set isFlipped(bool isFlipped) => _catalogMetadata?.isFlipped = isFlipped;
 
+  String get sourceTitle => _sourceTitle;
+
+  set sourceTitle(String sourceTitle) {
+    _sourceTitle = sourceTitle;
+    _bestTitle = null;
+  }
+
   int get dateModifiedSecs => _dateModifiedSecs;
 
   set dateModifiedSecs(int dateModifiedSecs) {
@@ -444,7 +444,7 @@ class AvesEntry {
       }
       catalogMetadata = CatalogMetadata(contentId: contentId);
     } else {
-      catalogMetadata = await MetadataService.getCatalogMetadata(this, background: background);
+      catalogMetadata = await metadataService.getCatalogMetadata(this, background: background);
     }
   }
 
@@ -479,12 +479,18 @@ class AvesEntry {
     );
   }
 
+  String _geocoderLocale;
+
+  String get geocoderLocale {
+    _geocoderLocale ??= (settings.locale ?? WidgetsBinding.instance.window.locale).toString();
+    return _geocoderLocale;
+  }
+
   // full reverse geocoding, requiring Play Services and some connectivity
   Future<void> locatePlace({@required bool background}) async {
     if (!hasGps || hasFineAddress) return;
-    final coordinates = latLng;
     try {
-      Future<List<Address>> call() => _findAddresses(Coordinates(coordinates.latitude, coordinates.longitude));
+      Future<List<Address>> call() => GeocodingService.getAddress(latLng, geocoderLocale);
       final addresses = await (background
           ? servicePolicy.call(
               call,
@@ -507,22 +513,21 @@ class AvesEntry {
         );
       }
     } catch (error, stack) {
-      debugPrint('$runtimeType locate failed with path=$path coordinates=$coordinates error=$error\n$stack');
+      debugPrint('$runtimeType locate failed with path=$path coordinates=$latLng error=$error\n$stack');
     }
   }
 
   Future<String> findAddressLine() async {
     if (!hasGps) return null;
 
-    final coordinates = latLng;
     try {
-      final addresses = await _findAddresses(Coordinates(coordinates.latitude, coordinates.longitude));
+      final addresses = await GeocodingService.getAddress(latLng, geocoderLocale);
       if (addresses != null && addresses.isNotEmpty) {
         final address = addresses.first;
         return address.addressLine;
       }
     } catch (error, stack) {
-      debugPrint('$runtimeType findAddressLine failed with path=$path coordinates=$coordinates error=$error\n$stack');
+      debugPrint('$runtimeType findAddressLine failed with path=$path coordinates=$latLng error=$error\n$stack');
     }
     return null;
   }
@@ -553,10 +558,7 @@ class AvesEntry {
     final contentId = newFields['contentId'];
     if (contentId is int) this.contentId = contentId;
     final sourceTitle = newFields['title'];
-    if (sourceTitle is String) {
-      this.sourceTitle = sourceTitle;
-      _bestTitle = null;
-    }
+    if (sourceTitle is String) this.sourceTitle = sourceTitle;
 
     final width = newFields['width'];
     if (width is int) this.width = width;
@@ -576,18 +578,8 @@ class AvesEntry {
     metadataChangeNotifier.notifyListeners();
   }
 
-  Future<bool> rename(String newName) async {
-    if (newName == filenameWithoutExtension) return true;
-
-    final newFields = await ImageFileService.rename(this, '$newName$extension');
-    if (newFields.isEmpty) return false;
-
-    await _applyNewFields(newFields);
-    return true;
-  }
-
   Future<bool> rotate({@required bool clockwise}) async {
-    final newFields = await ImageFileService.rotate(this, clockwise: clockwise);
+    final newFields = await imageFileService.rotate(this, clockwise: clockwise);
     if (newFields.isEmpty) return false;
 
     final oldDateModifiedSecs = dateModifiedSecs;
@@ -599,7 +591,7 @@ class AvesEntry {
   }
 
   Future<bool> flip() async {
-    final newFields = await ImageFileService.flip(this);
+    final newFields = await imageFileService.flip(this);
     if (newFields.isEmpty) return false;
 
     final oldDateModifiedSecs = dateModifiedSecs;
@@ -612,7 +604,7 @@ class AvesEntry {
 
   Future<bool> delete() {
     Completer completer = Completer<bool>();
-    ImageFileService.delete([this]).listen(
+    imageFileService.delete([this]).listen(
       (event) => completer.complete(event.success),
       onError: completer.completeError,
       onDone: () {
@@ -625,7 +617,7 @@ class AvesEntry {
   }
 
   // when the entry image itself changed (e.g. after rotation)
-  void _onImageChanged(int oldDateModifiedSecs, int oldRotationDegrees, bool oldIsFlipped) async {
+  Future<void> _onImageChanged(int oldDateModifiedSecs, int oldRotationDegrees, bool oldIsFlipped) async {
     if (oldDateModifiedSecs != dateModifiedSecs || oldRotationDegrees != rotationDegrees || oldIsFlipped != isFlipped) {
       await EntryCache.evict(uri, mimeType, oldDateModifiedSecs, oldRotationDegrees, oldIsFlipped);
       imageChangeNotifier.notifyListeners();
@@ -634,23 +626,23 @@ class AvesEntry {
 
   // favourites
 
-  void toggleFavourite() {
+  Future<void> toggleFavourite() async {
     if (isFavourite) {
-      removeFromFavourites();
+      await removeFromFavourites();
     } else {
-      addToFavourites();
+      await addToFavourites();
     }
   }
 
-  void addToFavourites() {
+  Future<void> addToFavourites() async {
     if (!isFavourite) {
-      favourites.add([this]);
+      await favourites.add([this]);
     }
   }
 
-  void removeFromFavourites() {
+  Future<void> removeFromFavourites() async {
     if (isFavourite) {
-      favourites.remove([this]);
+      await favourites.remove([this]);
     }
   }
 

lib/model/favourite_repo.dart

@@ -1,60 +0,0 @@
-import 'package:aves/model/entry.dart';
-import 'package:aves/model/metadata.dart';
-import 'package:aves/model/metadata_db.dart';
-import 'package:aves/utils/change_notifier.dart';
-
-final FavouriteRepo favourites = FavouriteRepo._private();
-
-class FavouriteRepo {
-  List<FavouriteRow> _rows = [];
-
-  final AChangeNotifier changeNotifier = AChangeNotifier();
-
-  FavouriteRepo._private();
-
-  Future<void> init() async {
-    _rows = await metadataDb.loadFavourites();
-  }
-
-  int get count => _rows.length;
-
-  bool isFavourite(AvesEntry entry) => _rows.any((row) => row.contentId == entry.contentId);
-
-  FavouriteRow _entryToRow(AvesEntry entry) => FavouriteRow(contentId: entry.contentId, path: entry.path);
-
-  Future<void> add(Iterable<AvesEntry> entries) async {
-    final newRows = entries.map(_entryToRow);
-
-    await metadataDb.addFavourites(newRows);
-    _rows.addAll(newRows);
-
-    changeNotifier.notifyListeners();
-  }
-
-  Future<void> remove(Iterable<AvesEntry> entries) async {
-    final removedRows = entries.map(_entryToRow);
-
-    await metadataDb.removeFavourites(removedRows);
-    removedRows.forEach(_rows.remove);
-
-    changeNotifier.notifyListeners();
-  }
-
-  Future<void> move(int oldContentId, AvesEntry entry) async {
-    final oldRow = _rows.firstWhere((row) => row.contentId == oldContentId, orElse: () => null);
-    final newRow = _entryToRow(entry);
-
-    await metadataDb.updateFavouriteId(oldContentId, newRow);
-    _rows.remove(oldRow);
-    _rows.add(newRow);
-
-    changeNotifier.notifyListeners();
-  }
-
-  Future<void> clear() async {
-    await metadataDb.clearFavourites();
-    _rows.clear();
-
-    changeNotifier.notifyListeners();
-  }
-}

lib/model/favourites.dart

@@ -0,0 +1,96 @@
+import 'package:aves/model/entry.dart';
+import 'package:aves/services/services.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/widgets.dart';
+
+final Favourites favourites = Favourites._private();
+
+class Favourites with ChangeNotifier {
+  Set<FavouriteRow> _rows = {};
+
+  Favourites._private();
+
+  Future<void> init() async {
+    _rows = await metadataDb.loadFavourites();
+  }
+
+  int get count => _rows.length;
+
+  bool isFavourite(AvesEntry entry) => _rows.any((row) => row.contentId == entry.contentId);
+
+  FavouriteRow _entryToRow(AvesEntry entry) => FavouriteRow(contentId: entry.contentId, path: entry.path);
+
+  Future<void> add(Iterable<AvesEntry> entries) async {
+    final newRows = entries.map(_entryToRow);
+
+    await metadataDb.addFavourites(newRows);
+    _rows.addAll(newRows);
+
+    notifyListeners();
+  }
+
+  Future<void> remove(Iterable<AvesEntry> entries) async {
+    final contentIds = entries.map((entry) => entry.contentId).toSet();
+    final removedRows = _rows.where((row) => contentIds.contains(row.contentId)).toSet();
+
+    await metadataDb.removeFavourites(removedRows);
+    removedRows.forEach(_rows.remove);
+
+    notifyListeners();
+  }
+
+  Future<void> moveEntry(int oldContentId, AvesEntry entry) async {
+    final oldRow = _rows.firstWhere((row) => row.contentId == oldContentId, orElse: () => null);
+    if (oldRow == null) return;
+
+    final newRow = _entryToRow(entry);
+
+    await metadataDb.updateFavouriteId(oldContentId, newRow);
+    _rows.remove(oldRow);
+    _rows.add(newRow);
+
+    notifyListeners();
+  }
+
+  Future<void> clear() async {
+    await metadataDb.clearFavourites();
+    _rows.clear();
+
+    notifyListeners();
+  }
+}
+
+@immutable
+class FavouriteRow {
+  final int contentId;
+  final String path;
+
+  const FavouriteRow({
+    this.contentId,
+    this.path,
+  });
+
+  factory FavouriteRow.fromMap(Map map) {
+    return FavouriteRow(
+      contentId: map['contentId'],
+      path: map['path'] ?? '',
+    );
+  }
+
+  Map<String, dynamic> toMap() => {
+        'contentId': contentId,
+        'path': path,
+      };
+
+  @override
+  bool operator ==(Object other) {
+    if (other.runtimeType != runtimeType) return false;
+    return other is FavouriteRow && other.contentId == contentId && other.path == path;
+  }
+
+  @override
+  int get hashCode => hashValues(contentId, path);
+
+  @override
+  String toString() => '$runtimeType#${shortHash(this)}{contentId=$contentId, path=$path}';
+}

lib/model/filters/album.dart

@@ -35,10 +35,10 @@ class AlbumFilter extends CollectionFilter {
   EntryFilter get test => (entry) => entry.directory == album;
 
   @override
-  String get label => uniqueName ?? album.split(separator).last;
+  String get universalLabel => uniqueName ?? album.split(separator).last;
 
   @override
-  String get tooltip => album;
+  String getTooltip(BuildContext context) => album;
 
   @override
   Widget iconBuilder(BuildContext context, double size, {bool showGenericIcon = true, bool embossed = false}) {
@@ -74,7 +74,11 @@ class AlbumFilter extends CollectionFilter {
   }
 
   @override
-  String get typeKey => type;
+  String get category => type;
+
+  // key `album-{path}` is expected by test driver
+  @override
+  String get key => '$type-$album';
 
   @override
   bool operator ==(Object other) {

lib/model/filters/favourite.dart

@@ -1,11 +1,15 @@
 import 'package:aves/model/filters/filters.dart';
 import 'package:aves/theme/icons.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 
 class FavouriteFilter extends CollectionFilter {
   static const type = 'favourite';
 
+  const FavouriteFilter();
+
   @override
   Map<String, dynamic> toMap() => {
         'type': type,
@@ -15,13 +19,22 @@ class FavouriteFilter extends CollectionFilter {
   EntryFilter get test => (entry) => entry.isFavourite;
 
   @override
-  String get label => 'Favourite';
+  String get universalLabel => type;
+
+  @override
+  String getLabel(BuildContext context) => context.l10n.filterFavouriteLabel;
 
   @override
   Widget iconBuilder(BuildContext context, double size, {bool showGenericIcon = true, bool embossed = false}) => Icon(AIcons.favourite, size: size);
 
   @override
-  String get typeKey => type;
+  Future<Color> color(BuildContext context) => SynchronousFuture(Colors.red);
+
+  @override
+  String get category => type;
+
+  @override
+  String get key => type;
 
   @override
   bool operator ==(Object other) {

lib/model/filters/filters.dart

@@ -14,7 +14,7 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 
 abstract class CollectionFilter implements Comparable<CollectionFilter> {
-  static const List<String> collectionFilterOrder = [
+  static const List<String> categoryOrder = [
     QueryFilter.type,
     FavouriteFilter.type,
     MimeFilter.type,
@@ -57,25 +57,28 @@ abstract class CollectionFilter implements Comparable<CollectionFilter> {
 
   bool get isUnique => true;
 
-  String get label;
+  String get universalLabel;
 
-  String get tooltip => label;
+  String getLabel(BuildContext context) => universalLabel;
+
+  String getTooltip(BuildContext context) => getLabel(context);
 
   Widget iconBuilder(BuildContext context, double size, {bool showGenericIcon = true, bool embossed = false});
 
-  Future<Color> color(BuildContext context) => SynchronousFuture(stringToColor(label));
+  Future<Color> color(BuildContext context) => SynchronousFuture(stringToColor(getLabel(context)));
 
-  String get typeKey;
-
-  int get displayPriority => collectionFilterOrder.indexOf(typeKey);
+  String get category;
 
   // to be used as widget key
-  String get key => '$typeKey-$label';
+  String get key;
+
+  int get displayPriority => categoryOrder.indexOf(category);
 
   @override
   int compareTo(CollectionFilter other) {
     final c = displayPriority.compareTo(other.displayPriority);
-    return c != 0 ? c : compareAsciiUpperCase(label, other.label);
+    // assume we compare context-independent labels
+    return c != 0 ? c : compareAsciiUpperCase(universalLabel, other.universalLabel);
   }
 }
 

lib/model/filters/location.dart

@@ -1,11 +1,11 @@
 import 'package:aves/model/filters/filters.dart';
 import 'package:aves/theme/icons.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 
 class LocationFilter extends CollectionFilter {
   static const type = 'location';
-  static const emptyLabel = 'unlocated';
   static const locationSeparator = ';';
 
   final LocationLevel level;
@@ -48,7 +48,10 @@ class LocationFilter extends CollectionFilter {
   EntryFilter get test => _test;
 
   @override
-  String get label => _location.isEmpty ? emptyLabel : _location;
+  String get universalLabel => _location;
+
+  @override
+  String getLabel(BuildContext context) => _location.isEmpty ? context.l10n.filterLocationEmptyLabel : _location;
 
   @override
   Widget iconBuilder(BuildContext context, double size, {bool showGenericIcon = true, bool embossed = false}) {
@@ -66,7 +69,10 @@ class LocationFilter extends CollectionFilter {
   }
 
   @override
-  String get typeKey => type;
+  String get category => type;
+
+  @override
+  String get key => '$type-$level-$_location';
 
   @override
   bool operator ==(Object other) {

lib/model/filters/mime.dart

@@ -1,6 +1,8 @@
 import 'package:aves/model/filters/filters.dart';
+import 'package:aves/ref/mime_types.dart';
 import 'package:aves/theme/icons.dart';
 import 'package:aves/utils/mime_utils.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 
@@ -17,14 +19,12 @@ class MimeFilter extends CollectionFilter {
     if (lowMime.endsWith('/*')) {
       lowMime = lowMime.substring(0, lowMime.length - 2);
       _test = (entry) => entry.mimeType.startsWith(lowMime);
-      if (lowMime == 'video') {
-        _label = 'Video';
-        _icon = AIcons.video;
-      } else if (lowMime == 'image') {
-        _label = 'Image';
+      _label = lowMime.toUpperCase();
+      if (mime == MimeTypes.anyImage) {
         _icon = AIcons.image;
+      } else if (mime == MimeTypes.anyVideo) {
+        _icon = AIcons.video;
       }
-      _label ??= lowMime.split('/')[0].toUpperCase();
     } else {
       _test = (entry) => entry.mimeType == lowMime;
       _label = MimeUtils.displayType(lowMime);
@@ -47,13 +47,28 @@ class MimeFilter extends CollectionFilter {
   EntryFilter get test => _test;
 
   @override
-  String get label => _label;
+  String get universalLabel => _label;
+
+  @override
+  String getLabel(BuildContext context) {
+    switch (mime) {
+      case MimeTypes.anyImage:
+        return context.l10n.filterMimeImageLabel;
+      case MimeTypes.anyVideo:
+        return context.l10n.filterMimeVideoLabel;
+      default:
+        return _label;
+    }
+  }
 
   @override
   Widget iconBuilder(BuildContext context, double size, {bool showGenericIcon = true, bool embossed = false}) => Icon(_icon, size: size);
 
   @override
-  String get typeKey => type;
+  String get category => type;
+
+  @override
+  String get key => '$type-$mime';
 
   @override
   bool operator ==(Object other) {

lib/model/filters/query.dart

@@ -50,7 +50,7 @@ class QueryFilter extends CollectionFilter {
   bool get isUnique => false;
 
   @override
-  String get label => '$query';
+  String get universalLabel => query;
 
   @override
   Widget iconBuilder(BuildContext context, double size, {bool showGenericIcon = true, bool embossed = false}) => Icon(AIcons.text, size: size);
@@ -59,7 +59,10 @@ class QueryFilter extends CollectionFilter {
   Future<Color> color(BuildContext context) => colorful ? super.color(context) : SynchronousFuture(AvesFilterChip.defaultOutlineColor);
 
   @override
-  String get typeKey => type;
+  String get category => type;
+
+  @override
+  String get key => '$type-$query';
 
   @override
   bool operator ==(Object other) {

lib/model/filters/tag.dart

@@ -1,11 +1,11 @@
 import 'package:aves/model/filters/filters.dart';
 import 'package:aves/theme/icons.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 
 class TagFilter extends CollectionFilter {
   static const type = 'tag';
-  static const emptyLabel = 'untagged';
 
   final String tag;
   EntryFilter _test;
@@ -36,13 +36,19 @@ class TagFilter extends CollectionFilter {
   bool get isUnique => false;
 
   @override
-  String get label => tag.isEmpty ? emptyLabel : tag;
+  String get universalLabel => tag;
+
+  @override
+  String getLabel(BuildContext context) => tag.isEmpty ? context.l10n.filterTagEmptyLabel : tag;
 
   @override
   Widget iconBuilder(BuildContext context, double size, {bool showGenericIcon = true, bool embossed = false}) => showGenericIcon ? Icon(tag.isEmpty ? AIcons.tagOff : AIcons.tag, size: size) : null;
 
   @override
-  String get typeKey => type;
+  String get category => type;
+
+  @override
+  String get key => '$type-$tag';
 
   @override
   bool operator ==(Object other) {

lib/model/filters/type.dart

@@ -1,5 +1,6 @@
 import 'package:aves/model/filters/filters.dart';
 import 'package:aves/theme/icons.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 
@@ -13,26 +14,26 @@ class TypeFilter extends CollectionFilter {
 
   final String itemType;
   EntryFilter _test;
-  String _label;
   IconData _icon;
 
   TypeFilter(this.itemType) {
-    if (itemType == animated) {
-      _test = (entry) => entry.isAnimated;
-      _label = 'Animated';
-      _icon = AIcons.animated;
-    } else if (itemType == panorama) {
-      _test = (entry) => entry.isImage && entry.is360;
-      _label = 'Panorama';
-      _icon = AIcons.threesixty;
-    } else if (itemType == sphericalVideo) {
-      _test = (entry) => entry.isVideo && entry.is360;
-      _label = '360° Video';
-      _icon = AIcons.threesixty;
-    } else if (itemType == geotiff) {
-      _test = (entry) => entry.isGeotiff;
-      _label = 'GeoTIFF';
-      _icon = AIcons.geo;
+    switch (itemType) {
+      case animated:
+        _test = (entry) => entry.isAnimated;
+        _icon = AIcons.animated;
+        break;
+      case panorama:
+        _test = (entry) => entry.isImage && entry.is360;
+        _icon = AIcons.threesixty;
+        break;
+      case sphericalVideo:
+        _test = (entry) => entry.isVideo && entry.is360;
+        _icon = AIcons.threesixty;
+        break;
+      case geotiff:
+        _test = (entry) => entry.isGeotiff;
+        _icon = AIcons.geo;
+        break;
     }
   }
 
@@ -51,13 +52,32 @@ class TypeFilter extends CollectionFilter {
   EntryFilter get test => _test;
 
   @override
-  String get label => _label;
+  String get universalLabel => itemType;
+
+  @override
+  String getLabel(BuildContext context) {
+    switch (itemType) {
+      case animated:
+        return context.l10n.filterTypeAnimatedLabel;
+      case panorama:
+        return context.l10n.filterTypePanoramaLabel;
+      case sphericalVideo:
+        return context.l10n.filterTypeSphericalVideoLabel;
+      case geotiff:
+        return context.l10n.filterTypeGeotiffLabel;
+      default:
+        return itemType;
+    }
+  }
 
   @override
   Widget iconBuilder(BuildContext context, double size, {bool showGenericIcon = true, bool embossed = false}) => Icon(_icon, size: size);
 
   @override
-  String get typeKey => type;
+  String get category => type;
+
+  @override
+  String get key => '$type-$itemType';
 
   @override
   bool operator ==(Object other) {

lib/model/metadata.dart

@@ -1,6 +1,6 @@
+import 'package:aves/services/geocoding_service.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
-import 'package:geocoder/model.dart';
 import 'package:intl/intl.dart';
 
 class DateMetadata {
@@ -204,38 +204,3 @@ class AddressDetails {
   @override
   String toString() => '$runtimeType#${shortHash(this)}{contentId=$contentId, countryCode=$countryCode, countryName=$countryName, adminArea=$adminArea, locality=$locality}';
 }
-
-@immutable
-class FavouriteRow {
-  final int contentId;
-  final String path;
-
-  const FavouriteRow({
-    this.contentId,
-    this.path,
-  });
-
-  factory FavouriteRow.fromMap(Map map) {
-    return FavouriteRow(
-      contentId: map['contentId'],
-      path: map['path'] ?? '',
-    );
-  }
-
-  Map<String, dynamic> toMap() => {
-        'contentId': contentId,
-        'path': path,
-      };
-
-  @override
-  bool operator ==(Object other) {
-    if (other.runtimeType != runtimeType) return false;
-    return other is FavouriteRow && other.contentId == contentId && other.path == path;
-  }
-
-  @override
-  int get hashCode => hashValues(contentId, path);
-
-  @override
-  String toString() => '$runtimeType#${shortHash(this)}{contentId=$contentId, path=$path}';
-}

lib/model/metadata_db.dart

@@ -1,15 +1,85 @@
 import 'dart:io';
 
+import 'package:aves/model/covers.dart';
 import 'package:aves/model/entry.dart';
+import 'package:aves/model/favourites.dart';
 import 'package:aves/model/metadata.dart';
 import 'package:aves/model/metadata_db_upgrade.dart';
 import 'package:flutter/foundation.dart';
 import 'package:path/path.dart';
 import 'package:sqflite/sqflite.dart';
 
-final MetadataDb metadataDb = MetadataDb._private();
+abstract class MetadataDb {
+  Future<void> init();
 
-class MetadataDb {
+  Future<int> dbFileSize();
+
+  Future<void> reset();
+
+  Future<void> removeIds(Set<int> contentIds, {@required bool metadataOnly});
+
+  // entries
+
+  Future<void> clearEntries();
+
+  Future<Set<AvesEntry>> loadEntries();
+
+  Future<void> saveEntries(Iterable<AvesEntry> entries);
+
+  Future<void> updateEntryId(int oldId, AvesEntry entry);
+
+  // date taken
+
+  Future<void> clearDates();
+
+  Future<List<DateMetadata>> loadDates();
+
+  // catalog metadata
+
+  Future<void> clearMetadataEntries();
+
+  Future<List<CatalogMetadata>> loadMetadataEntries();
+
+  Future<void> saveMetadata(Iterable<CatalogMetadata> metadataEntries);
+
+  Future<void> updateMetadataId(int oldId, CatalogMetadata metadata);
+
+  // address
+
+  Future<void> clearAddresses();
+
+  Future<List<AddressDetails>> loadAddresses();
+
+  Future<void> saveAddresses(Iterable<AddressDetails> addresses);
+
+  Future<void> updateAddressId(int oldId, AddressDetails address);
+
+  // favourites
+
+  Future<void> clearFavourites();
+
+  Future<Set<FavouriteRow>> loadFavourites();
+
+  Future<void> addFavourites(Iterable<FavouriteRow> rows);
+
+  Future<void> updateFavouriteId(int oldId, FavouriteRow row);
+
+  Future<void> removeFavourites(Iterable<FavouriteRow> rows);
+
+  // covers
+
+  Future<void> clearCovers();
+
+  Future<Set<CoverRow>> loadCovers();
+
+  Future<void> addCovers(Iterable<CoverRow> rows);
+
+  Future<void> updateCoverEntryId(int oldId, CoverRow row);
+
+  Future<void> removeCovers(Iterable<CoverRow> rows);
+}
+
+class SqfliteMetadataDb implements MetadataDb {
   Future<Database> _database;
 
   Future<String> get path async => join(await getDatabasesPath(), 'metadata.db');
@@ -19,9 +89,9 @@ class MetadataDb {
   static const metadataTable = 'metadata';
   static const addressTable = 'address';
   static const favouriteTable = 'favourites';
+  static const coverTable = 'covers';
 
-  MetadataDb._private();
-
+  @override
   Future<void> init() async {
     debugPrint('$runtimeType init');
     _database = openDatabase(
@@ -68,17 +138,23 @@ class MetadataDb {
             'contentId INTEGER PRIMARY KEY'
             ', path TEXT'
             ')');
+        await db.execute('CREATE TABLE $coverTable('
+            'filter TEXT PRIMARY KEY'
+            ', contentId INTEGER'
+            ')');
       },
       onUpgrade: MetadataDbUpgrader.upgradeDb,
-      version: 3,
+      version: 4,
     );
   }
 
+  @override
   Future<int> dbFileSize() async {
     final file = File((await path));
     return await file.exists() ? file.length() : 0;
   }
 
+  @override
   Future<void> reset() async {
     debugPrint('$runtimeType reset');
     await (await _database).close();
@@ -86,7 +162,8 @@ class MetadataDb {
     await init();
   }
 
-  void removeIds(Set<int> contentIds, {@required bool updateFavourites}) async {
+  @override
+  Future<void> removeIds(Set<int> contentIds, {@required bool metadataOnly}) async {
     if (contentIds == null || contentIds.isEmpty) return;
 
     final stopwatch = Stopwatch()..start();
@@ -100,8 +177,9 @@ class MetadataDb {
       batch.delete(dateTakenTable, where: where, whereArgs: whereArgs);
       batch.delete(metadataTable, where: where, whereArgs: whereArgs);
       batch.delete(addressTable, where: where, whereArgs: whereArgs);
-      if (updateFavourites) {
+      if (!metadataOnly) {
         batch.delete(favouriteTable, where: where, whereArgs: whereArgs);
+        batch.delete(coverTable, where: where, whereArgs: whereArgs);
       }
     });
     await batch.commit(noResult: true);
@@ -110,12 +188,14 @@ class MetadataDb {
 
   // entries
 
+  @override
   Future<void> clearEntries() async {
     final db = await _database;
     final count = await db.delete(entryTable, where: '1');
     debugPrint('$runtimeType clearEntries deleted $count entries');
   }
 
+  @override
   Future<Set<AvesEntry>> loadEntries() async {
     final stopwatch = Stopwatch()..start();
     final db = await _database;
@@ -125,6 +205,7 @@ class MetadataDb {
     return entries;
   }
 
+  @override
   Future<void> saveEntries(Iterable<AvesEntry> entries) async {
     if (entries == null || entries.isEmpty) return;
     final stopwatch = Stopwatch()..start();
@@ -135,6 +216,7 @@ class MetadataDb {
     debugPrint('$runtimeType saveEntries complete in ${stopwatch.elapsed.inMilliseconds}ms for ${entries.length} entries');
   }
 
+  @override
   Future<void> updateEntryId(int oldId, AvesEntry entry) async {
     final db = await _database;
     final batch = db.batch();
@@ -154,12 +236,14 @@ class MetadataDb {
 
   // date taken
 
+  @override
   Future<void> clearDates() async {
     final db = await _database;
     final count = await db.delete(dateTakenTable, where: '1');
     debugPrint('$runtimeType clearDates deleted $count entries');
   }
 
+  @override
   Future<List<DateMetadata>> loadDates() async {
 //    final stopwatch = Stopwatch()..start();
     final db = await _database;
@@ -171,12 +255,14 @@ class MetadataDb {
 
   // catalog metadata
 
+  @override
   Future<void> clearMetadataEntries() async {
     final db = await _database;
     final count = await db.delete(metadataTable, where: '1');
     debugPrint('$runtimeType clearMetadataEntries deleted $count entries');
   }
 
+  @override
   Future<List<CatalogMetadata>> loadMetadataEntries() async {
 //    final stopwatch = Stopwatch()..start();
     final db = await _database;
@@ -186,6 +272,7 @@ class MetadataDb {
     return metadataEntries;
   }
 
+  @override
   Future<void> saveMetadata(Iterable<CatalogMetadata> metadataEntries) async {
     if (metadataEntries == null || metadataEntries.isEmpty) return;
     final stopwatch = Stopwatch()..start();
@@ -200,6 +287,7 @@ class MetadataDb {
     }
   }
 
+  @override
   Future<void> updateMetadataId(int oldId, CatalogMetadata metadata) async {
     final db = await _database;
     final batch = db.batch();
@@ -227,12 +315,14 @@ class MetadataDb {
 
   // address
 
+  @override
   Future<void> clearAddresses() async {
     final db = await _database;
     final count = await db.delete(addressTable, where: '1');
     debugPrint('$runtimeType clearAddresses deleted $count entries');
   }
 
+  @override
   Future<List<AddressDetails>> loadAddresses() async {
 //    final stopwatch = Stopwatch()..start();
     final db = await _database;
@@ -242,6 +332,7 @@ class MetadataDb {
     return addresses;
   }
 
+  @override
   Future<void> saveAddresses(Iterable<AddressDetails> addresses) async {
     if (addresses == null || addresses.isEmpty) return;
     final stopwatch = Stopwatch()..start();
@@ -252,6 +343,7 @@ class MetadataDb {
     debugPrint('$runtimeType saveAddresses complete in ${stopwatch.elapsed.inMilliseconds}ms for ${addresses.length} entries');
   }
 
+  @override
   Future<void> updateAddressId(int oldId, AddressDetails address) async {
     final db = await _database;
     final batch = db.batch();
@@ -271,31 +363,31 @@ class MetadataDb {
 
   // favourites
 
+  @override
   Future<void> clearFavourites() async {
     final db = await _database;
     final count = await db.delete(favouriteTable, where: '1');
     debugPrint('$runtimeType clearFavourites deleted $count entries');
   }
 
-  Future<List<FavouriteRow>> loadFavourites() async {
-//    final stopwatch = Stopwatch()..start();
+  @override
+  Future<Set<FavouriteRow>> loadFavourites() async {
     final db = await _database;
     final maps = await db.query(favouriteTable);
-    final favouriteRows = maps.map((map) => FavouriteRow.fromMap(map)).toList();
-//    debugPrint('$runtimeType loadFavourites complete in ${stopwatch.elapsed.inMilliseconds}ms for ${favouriteRows.length} entries');
-    return favouriteRows;
+    final rows = maps.map((map) => FavouriteRow.fromMap(map)).toSet();
+    return rows;
   }
 
-  Future<void> addFavourites(Iterable<FavouriteRow> favouriteRows) async {
-    if (favouriteRows == null || favouriteRows.isEmpty) return;
-//    final stopwatch = Stopwatch()..start();
+  @override
+  Future<void> addFavourites(Iterable<FavouriteRow> rows) async {
+    if (rows == null || rows.isEmpty) return;
     final db = await _database;
     final batch = db.batch();
-    favouriteRows.where((row) => row != null).forEach((row) => _batchInsertFavourite(batch, row));
+    rows.where((row) => row != null).forEach((row) => _batchInsertFavourite(batch, row));
     await batch.commit(noResult: true);
-//    debugPrint('$runtimeType addFavourites complete in ${stopwatch.elapsed.inMilliseconds}ms for ${favouriteRows.length} entries');
   }
 
+  @override
   Future<void> updateFavouriteId(int oldId, FavouriteRow row) async {
     final db = await _database;
     final batch = db.batch();
@@ -313,9 +405,10 @@ class MetadataDb {
     );
   }
 
-  Future<void> removeFavourites(Iterable<FavouriteRow> favouriteRows) async {
-    if (favouriteRows == null || favouriteRows.isEmpty) return;
-    final ids = favouriteRows.where((row) => row != null).map((row) => row.contentId);
+  @override
+  Future<void> removeFavourites(Iterable<FavouriteRow> rows) async {
+    if (rows == null || rows.isEmpty) return;
+    final ids = rows.where((row) => row != null).map((row) => row.contentId);
     if (ids.isEmpty) return;
 
     final db = await _database;
@@ -324,4 +417,61 @@ class MetadataDb {
     ids.forEach((id) => batch.delete(favouriteTable, where: 'contentId = ?', whereArgs: [id]));
     await batch.commit(noResult: true);
   }
+
+  // covers
+
+  @override
+  Future<void> clearCovers() async {
+    final db = await _database;
+    final count = await db.delete(coverTable, where: '1');
+    debugPrint('$runtimeType clearCovers deleted $count entries');
+  }
+
+  @override
+  Future<Set<CoverRow>> loadCovers() async {
+    final db = await _database;
+    final maps = await db.query(coverTable);
+    final rows = maps.map((map) => CoverRow.fromMap(map)).toSet();
+    return rows;
+  }
+
+  @override
+  Future<void> addCovers(Iterable<CoverRow> rows) async {
+    if (rows == null || rows.isEmpty) return;
+    final db = await _database;
+    final batch = db.batch();
+    rows.where((row) => row != null).forEach((row) => _batchInsertCover(batch, row));
+    await batch.commit(noResult: true);
+  }
+
+  @override
+  Future<void> updateCoverEntryId(int oldId, CoverRow row) async {
+    final db = await _database;
+    final batch = db.batch();
+    batch.delete(coverTable, where: 'contentId = ?', whereArgs: [oldId]);
+    _batchInsertCover(batch, row);
+    await batch.commit(noResult: true);
+  }
+
+  void _batchInsertCover(Batch batch, CoverRow row) {
+    if (row == null) return;
+    batch.insert(
+      coverTable,
+      row.toMap(),
+      conflictAlgorithm: ConflictAlgorithm.replace,
+    );
+  }
+
+  @override
+  Future<void> removeCovers(Iterable<CoverRow> rows) async {
+    if (rows == null || rows.isEmpty) return;
+    final filters = rows.where((row) => row != null).map((row) => row.filter);
+    if (filters.isEmpty) return;
+
+    final db = await _database;
+    // using array in `whereArgs` and using it with `where filter IN ?` is a pain, so we prefer `batch` instead
+    final batch = db.batch();
+    filters.forEach((filter) => batch.delete(coverTable, where: 'filter = ?', whereArgs: [filter.toJson()]));
+    await batch.commit(noResult: true);
+  }
 }

lib/model/metadata_db_upgrade.dart

@@ -3,8 +3,9 @@ import 'package:flutter/foundation.dart';
 import 'package:sqflite/sqflite.dart';
 
 class MetadataDbUpgrader {
-  static const entryTable = MetadataDb.entryTable;
-  static const metadataTable = MetadataDb.metadataTable;
+  static const entryTable = SqfliteMetadataDb.entryTable;
+  static const metadataTable = SqfliteMetadataDb.metadataTable;
+  static const coverTable = SqfliteMetadataDb.coverTable;
 
   // warning: "ALTER TABLE ... RENAME COLUMN ..." is not supported
   // on SQLite <3.25.0, bundled on older Android devices
@@ -17,6 +18,9 @@ class MetadataDbUpgrader {
         case 2:
           await _upgradeFrom2(db);
           break;
+        case 3:
+          await _upgradeFrom3(db);
+          break;
       }
       oldVersion++;
     }
@@ -97,4 +101,12 @@ class MetadataDbUpgrader {
       await db.execute('ALTER TABLE $newMetadataTable RENAME TO $metadataTable;');
     });
   }
+
+  static Future<void> _upgradeFrom3(Database db) async {
+    debugPrint('upgrading DB from v3');
+    await db.execute('CREATE TABLE $coverTable('
+        'filter TEXT PRIMARY KEY'
+        ', contentId INTEGER'
+        ')');
+  }
 }

lib/model/multipage.dart

@@ -71,7 +71,7 @@ class SinglePageInfo implements Comparable<SinglePageInfo> {
     final index = map['page'] as int;
     return SinglePageInfo(
       index: index,
-      pageId: map['trackId'] as int ?? index,
+      pageId: index,
       mimeType: map['mimeType'] as String,
       isDefault: map['isDefault'] as bool ?? false,
       width: map['width'] as int ?? 0,

lib/model/settings/coordinate_format.dart

@@ -1,15 +1,17 @@
 import 'package:aves/geo/format.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
+import 'package:flutter/widgets.dart';
 import 'package:latlong/latlong.dart';
 
-enum CoordinateFormat { dms, decimal }
+import 'enums.dart';
 
 extension ExtraCoordinateFormat on CoordinateFormat {
-  String get name {
+  String getName(BuildContext context) {
     switch (this) {
       case CoordinateFormat.dms:
-        return 'DMS';
+        return context.l10n.coordinateFormatDms;
       case CoordinateFormat.decimal:
-        return 'Decimal degrees';
+        return context.l10n.coordinateFormatDecimal;
       default:
         return toString();
     }

lib/model/settings/entry_background.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 
-enum EntryBackground { black, white, transparent, checkered }
+import 'enums.dart';
 
 extension ExtraEntryBackground on EntryBackground {
   bool get isColor {

lib/model/settings/enums.dart

@@ -0,0 +1,10 @@
+enum CoordinateFormat { dms, decimal }
+
+enum EntryBackground { black, white, transparent, checkered }
+
+enum HomePageSetting { collection, albums }
+
+// browse providers at https://leaflet-extras.github.io/leaflet-providers/preview/
+enum EntryMapStyle { googleNormal, googleHybrid, googleTerrain, osmHot, stamenToner, stamenWatercolor }
+
+enum KeepScreenOn { never, viewerOnly, always }

lib/model/settings/home_page.dart

@@ -1,15 +1,17 @@
 import 'package:aves/widgets/collection/collection_page.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
 import 'package:aves/widgets/filter_grids/albums_page.dart';
+import 'package:flutter/widgets.dart';
 
-enum HomePageSetting { collection, albums }
+import 'enums.dart';
 
 extension ExtraHomePageSetting on HomePageSetting {
-  String get name {
+  String getName(BuildContext context) {
     switch (this) {
       case HomePageSetting.collection:
-        return 'Collection';
+        return context.l10n.collectionPageTitle;
       case HomePageSetting.albums:
-        return 'Albums';
+        return context.l10n.albumPageTitle;
       default:
         return toString();
     }

lib/model/settings/map_style.dart

@@ -1,21 +1,23 @@
-// browse providers at https://leaflet-extras.github.io/leaflet-providers/preview/
-enum EntryMapStyle { googleNormal, googleHybrid, googleTerrain, osmHot, stamenToner, stamenWatercolor }
+import 'package:aves/widgets/common/extensions/build_context.dart';
+import 'package:flutter/widgets.dart';
+
+import 'enums.dart';
 
 extension ExtraEntryMapStyle on EntryMapStyle {
-  String get name {
+  String getName(BuildContext context) {
     switch (this) {
       case EntryMapStyle.googleNormal:
-        return 'Google Maps';
+        return context.l10n.mapStyleGoogleNormal;
       case EntryMapStyle.googleHybrid:
-        return 'Google Maps (Hybrid)';
+        return context.l10n.mapStyleGoogleHybrid;
       case EntryMapStyle.googleTerrain:
-        return 'Google Maps (Terrain)';
+        return context.l10n.mapStyleGoogleTerrain;
       case EntryMapStyle.osmHot:
-        return 'Humanitarian OSM';
+        return context.l10n.mapStyleOsmHot;
       case EntryMapStyle.stamenToner:
-        return 'Stamen Toner';
+        return context.l10n.mapStyleStamenToner;
       case EntryMapStyle.stamenWatercolor:
-        return 'Stamen Watercolor';
+        return context.l10n.mapStyleStamenWatercolor;
       default:
         return toString();
     }

lib/model/settings/screen_on.dart

@@ -1,16 +1,18 @@
 import 'package:aves/services/window_service.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
+import 'package:flutter/widgets.dart';
 
-enum KeepScreenOn { never, viewerOnly, always }
+import 'enums.dart';
 
 extension ExtraKeepScreenOn on KeepScreenOn {
-  String get name {
+  String getName(BuildContext context) {
     switch (this) {
       case KeepScreenOn.never:
-        return 'Never';
+        return context.l10n.keepScreenOnNever;
       case KeepScreenOn.viewerOnly:
-        return 'Viewer page only';
+        return context.l10n.keepScreenOnViewerOnly;
       case KeepScreenOn.always:
-        return 'Always';
+        return context.l10n.keepScreenOnAlways;
       default:
         return toString();
     }

lib/model/settings/settings.dart

@@ -1,18 +1,14 @@
 import 'package:aves/model/filters/filters.dart';
-import 'package:aves/model/settings/coordinate_format.dart';
-import 'package:aves/model/settings/entry_background.dart';
-import 'package:aves/model/settings/home_page.dart';
-import 'package:aves/model/settings/map_style.dart';
 import 'package:aves/model/settings/screen_on.dart';
 import 'package:firebase_analytics/firebase_analytics.dart';
 import 'package:firebase_core/firebase_core.dart';
 import 'package:firebase_crashlytics/firebase_crashlytics.dart';
-import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 import 'package:pedantic/pedantic.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
 import '../source/enums.dart';
+import 'enums.dart';
 
 final Settings settings = Settings._private();
 
@@ -24,6 +20,7 @@ class Settings extends ChangeNotifier {
   // app
   static const hasAcceptedTermsKey = 'has_accepted_terms';
   static const isCrashlyticsEnabledKey = 'is_crashlytics_enabled';
+  static const localeKey = 'locale';
   static const mustBackTwiceToExitKey = 'must_back_twice_to_exit';
   static const keepScreenOnKey = 'keep_screen_on';
   static const homePageKey = 'home_page';
@@ -99,6 +96,34 @@ class Settings extends ChangeNotifier {
     unawaited(initFirebase());
   }
 
+  static const localeSeparator = '-';
+
+  Locale get locale {
+    // exceptionally allow getting locale before settings are initialized
+    final tag = _prefs?.getString(localeKey);
+    if (tag != null) {
+      final codes = tag.split(localeSeparator);
+      return Locale.fromSubtags(
+        languageCode: codes[0],
+        scriptCode: codes[1] == '' ? null : codes[1],
+        countryCode: codes[2] == '' ? null : codes[2],
+      );
+    }
+    return null;
+  }
+
+  set locale(Locale newValue) {
+    String tag;
+    if (newValue != null) {
+      tag = [
+        newValue.languageCode ?? '',
+        newValue.scriptCode ?? '',
+        newValue.countryCode ?? '',
+      ].join(localeSeparator);
+    }
+    setAndNotify(localeKey, tag);
+  }
+
   bool get mustBackTwiceToExit => getBoolOrDefault(mustBackTwiceToExitKey, true);
 
   set mustBackTwiceToExit(bool newValue) => setAndNotify(mustBackTwiceToExitKey, newValue);
@@ -120,7 +145,7 @@ class Settings extends ChangeNotifier {
 
   double getTileExtent(String routeName) => _prefs.getDouble(tileExtentPrefixKey + routeName) ?? 0;
 
-  // do not notify, as tile extents are only used internally by `TileExtentManager`
+  // do not notify, as tile extents are only used internally by `TileExtentController`
   // and should not trigger rebuilding by change notification
   void setTileExtent(String routeName, double newValue) => setAndNotify(tileExtentPrefixKey + routeName, newValue, notify: false);
 
@@ -182,7 +207,7 @@ class Settings extends ChangeNotifier {
 
   set showOverlayInfo(bool newValue) => setAndNotify(showOverlayInfoKey, newValue);
 
-  bool get showOverlayShootingDetails => getBoolOrDefault(showOverlayShootingDetailsKey, true);
+  bool get showOverlayShootingDetails => getBoolOrDefault(showOverlayShootingDetailsKey, false);
 
   set showOverlayShootingDetails(bool newValue) => setAndNotify(showOverlayShootingDetailsKey, newValue);
 

lib/model/source/album.dart

@@ -4,6 +4,7 @@ import 'package:aves/model/settings/settings.dart';
 import 'package:aves/model/source/collection_source.dart';
 import 'package:aves/utils/android_file_utils.dart';
 import 'package:collection/collection.dart';
+import 'package:flutter/widgets.dart';
 import 'package:path/path.dart';
 
 mixin AlbumMixin on SourceBase {
@@ -12,8 +13,8 @@ mixin AlbumMixin on SourceBase {
   List<String> get rawAlbums => List.unmodifiable(_directories);
 
   int compareAlbumsByName(String a, String b) {
-    final ua = getUniqueAlbumName(a);
-    final ub = getUniqueAlbumName(b);
+    final ua = getUniqueAlbumName(null, a);
+    final ub = getUniqueAlbumName(null, b);
     final c = compareAsciiUpperCase(ua, ub);
     if (c != 0) return c;
     final va = androidFileUtils.getStorageVolume(a)?.path ?? '';
@@ -23,7 +24,7 @@ mixin AlbumMixin on SourceBase {
 
   void _notifyAlbumChange() => eventBus.fire(AlbumsChangedEvent());
 
-  String getUniqueAlbumName(String dirPath) {
+  String getUniqueAlbumName(BuildContext context, String dirPath) {
     String unique(String dirPath, [bool Function(String) test]) {
       final otherAlbums = _directories.where(test ?? (_) => true).where((item) => item != dirPath);
       final parts = dirPath.split(separator);
@@ -51,7 +52,7 @@ mixin AlbumMixin on SourceBase {
       if (volume.isPrimary) {
         return uniqueNameInVolume;
       } else {
-        return '$uniqueNameInVolume (${volume.description})';
+        return '$uniqueNameInVolume (${volume.getDescription(context)})';
       }
     }
   }
@@ -99,7 +100,7 @@ mixin AlbumMixin on SourceBase {
       invalidateAlbumFilterSummary(directories: emptyAlbums);
 
       final pinnedFilters = settings.pinnedFilters;
-      emptyAlbums.forEach((album) => pinnedFilters.remove(AlbumFilter(album, getUniqueAlbumName(album))));
+      emptyAlbums.forEach((album) => pinnedFilters.removeWhere((filter) => filter is AlbumFilter && filter.album == album));
       settings.pinnedFilters = pinnedFilters;
     }
   }

lib/model/source/collection_lens.dart

@@ -92,7 +92,7 @@ class CollectionLens with ChangeNotifier, CollectionActivityMixin {
   void addFilter(CollectionFilter filter) {
     if (filter == null || filters.contains(filter)) return;
     if (filter.isUnique) {
-      filters.removeWhere((old) => old.typeKey == filter.typeKey);
+      filters.removeWhere((old) => old.category == filter.category);
     }
     filters.add(filter);
     onFilterChanged();

lib/model/source/collection_source.dart

@@ -1,18 +1,20 @@
 import 'dart:async';
 
+import 'package:aves/model/covers.dart';
 import 'package:aves/model/entry.dart';
-import 'package:aves/model/favourite_repo.dart';
+import 'package:aves/model/favourites.dart';
 import 'package:aves/model/filters/album.dart';
 import 'package:aves/model/filters/filters.dart';
 import 'package:aves/model/filters/location.dart';
 import 'package:aves/model/filters/tag.dart';
 import 'package:aves/model/metadata.dart';
-import 'package:aves/model/metadata_db.dart';
 import 'package:aves/model/settings/settings.dart';
 import 'package:aves/model/source/album.dart';
+import 'package:aves/model/source/enums.dart';
 import 'package:aves/model/source/location.dart';
 import 'package:aves/model/source/tag.dart';
 import 'package:aves/services/image_op_events.dart';
+import 'package:aves/services/services.dart';
 import 'package:event_bus/event_bus.dart';
 import 'package:flutter/foundation.dart';
 
@@ -98,10 +100,11 @@ abstract class CollectionSource with SourceBase, AlbumMixin, LocationMixin, TagM
     eventBus.fire(EntryAddedEvent(entries));
   }
 
-  void removeEntries(Set<String> uris) {
+  Future<void> removeEntries(Set<String> uris) async {
     if (uris.isEmpty) return;
     final entries = _rawEntries.where((entry) => uris.contains(entry.uri)).toSet();
-    entries.forEach((entry) => entry.removeFromFavourites());
+    await favourites.remove(entries);
+    await covers.removeEntries(entries);
     _rawEntries.removeAll(entries);
     _invalidate(entries);
 
@@ -120,30 +123,61 @@ abstract class CollectionSource with SourceBase, AlbumMixin, LocationMixin, TagM
     updateTags();
   }
 
-  Future<void> _moveEntry(AvesEntry entry, Map newFields, bool isFavourite) async {
+  Future<void> _moveEntry(AvesEntry entry, Map newFields) async {
     final oldContentId = entry.contentId;
     final newContentId = newFields['contentId'] as int;
-    final newDateModifiedSecs = newFields['dateModifiedSecs'] as int;
+
+    entry.contentId = newContentId;
     // `dateModifiedSecs` changes when moving entries to another directory,
     // but it does not change when renaming the containing directory
-    if (newDateModifiedSecs != null) entry.dateModifiedSecs = newDateModifiedSecs;
-    entry.path = newFields['path'] as String;
-    entry.uri = newFields['uri'] as String;
-    entry.contentId = newContentId;
+    if (newFields.containsKey('dateModifiedSecs')) entry.dateModifiedSecs = newFields['dateModifiedSecs'] as int;
+    if (newFields.containsKey('path')) entry.path = newFields['path'] as String;
+    if (newFields.containsKey('uri')) entry.uri = newFields['uri'] as String;
+    if (newFields.containsKey('title') != null) entry.sourceTitle = newFields['title'] as String;
+
     entry.catalogMetadata = entry.catalogMetadata?.copyWith(contentId: newContentId);
     entry.addressDetails = entry.addressDetails?.copyWith(contentId: newContentId);
 
     await metadataDb.updateEntryId(oldContentId, entry);
     await metadataDb.updateMetadataId(oldContentId, entry.catalogMetadata);
     await metadataDb.updateAddressId(oldContentId, entry.addressDetails);
-    if (isFavourite) {
-      await favourites.move(oldContentId, entry);
+    await favourites.moveEntry(oldContentId, entry);
+    await covers.moveEntry(oldContentId, entry);
+  }
+
+  Future<bool> renameEntry(AvesEntry entry, String newName) async {
+    if (newName == entry.filenameWithoutExtension) return true;
+    final newFields = await imageFileService.rename(entry, '$newName${entry.extension}');
+    if (newFields.isEmpty) return false;
+
+    await _moveEntry(entry, newFields);
+    entry.metadataChangeNotifier.notifyListeners();
+    return true;
+  }
+
+  Future<void> renameAlbum(String sourceAlbum, String destinationAlbum, Set<AvesEntry> todoEntries, Set<MoveOpEvent> movedOps) async {
+    final oldFilter = AlbumFilter(sourceAlbum, null);
+    final pinned = settings.pinnedFilters.contains(oldFilter);
+    final oldCoverContentId = covers.coverContentId(oldFilter);
+    final coverEntry = oldCoverContentId != null ? todoEntries.firstWhere((entry) => entry.contentId == oldCoverContentId, orElse: () => null) : null;
+    await updateAfterMove(
+      todoEntries: todoEntries,
+      copy: false,
+      destinationAlbum: destinationAlbum,
+      movedOps: movedOps,
+    );
+    // restore pin and cover, as the obsolete album got removed and its associated state cleaned
+    final newFilter = AlbumFilter(destinationAlbum, null);
+    if (pinned) {
+      settings.pinnedFilters = settings.pinnedFilters..add(newFilter);
+    }
+    if (coverEntry != null) {
+      await covers.set(newFilter, coverEntry.contentId);
     }
   }
 
-  void updateAfterMove({
+  Future<void> updateAfterMove({
     @required Set<AvesEntry> todoEntries,
-    @required Set<AvesEntry> favouriteEntries,
     @required bool copy,
     @required String destinationAlbum,
     @required Set<MoveOpEvent> movedOps,
@@ -177,10 +211,7 @@ abstract class CollectionSource with SourceBase, AlbumMixin, LocationMixin, TagM
           if (entry != null) {
             fromAlbums.add(entry.directory);
             movedEntries.add(entry);
-            // do not rely on current favourite repo state to assess whether the moved entry is a favourite
-            // as source monitoring may already have removed the entry from the favourite repo
-            final isFavourite = favouriteEntries.contains(entry);
-            await _moveEntry(entry, newFields, isFavourite);
+            await _moveEntry(entry, newFields);
           }
         }
       });
@@ -231,6 +262,15 @@ abstract class CollectionSource with SourceBase, AlbumMixin, LocationMixin, TagM
     return null;
   }
 
+  AvesEntry coverEntry(CollectionFilter filter) {
+    final contentId = covers.coverContentId(filter);
+    if (contentId != null) {
+      final entry = visibleEntries.firstWhere((entry) => entry.contentId == contentId, orElse: () => null);
+      if (entry != null) return entry;
+    }
+    return recentEntry(filter);
+  }
+
   void changeFilterVisibility(CollectionFilter filter, bool visible) {
     final hiddenFilters = settings.hiddenFilters;
     if (visible) {
@@ -256,8 +296,6 @@ abstract class CollectionSource with SourceBase, AlbumMixin, LocationMixin, TagM
   }
 }
 
-enum SourceState { loading, cataloguing, locating, ready }
-
 class EntryAddedEvent {
   final Set<AvesEntry> entries;
 

lib/model/source/enums.dart

@@ -1,5 +1,7 @@
 enum Activity { browse, select }
 
+enum SourceState { loading, cataloguing, locating, ready }
+
 enum ChipSortFactor { date, name, count }
 
 enum AlbumChipGroupFactor { none, importance, volume }

lib/model/source/location.dart

@@ -1,12 +1,12 @@
 import 'dart:math';
 
 import 'package:aves/geo/countries.dart';
-import 'package:aves/model/availability.dart';
 import 'package:aves/model/entry.dart';
 import 'package:aves/model/filters/location.dart';
 import 'package:aves/model/metadata.dart';
-import 'package:aves/model/metadata_db.dart';
 import 'package:aves/model/source/collection_source.dart';
+import 'package:aves/model/source/enums.dart';
+import 'package:aves/services/services.dart';
 import 'package:collection/collection.dart';
 import 'package:flutter/foundation.dart';
 import 'package:tuple/tuple.dart';
@@ -81,14 +81,14 @@ mixin LocationMixin on SourceBase {
     // -  652 calls (22%) when approximating to 2 decimal places (~1km - town or village)
     // cf https://en.wikipedia.org/wiki/Decimal_degrees#Precision
     final latLngFactor = pow(10, 2);
-    Tuple2 approximateLatLng(AvesEntry entry) {
+    Tuple2<int, int> approximateLatLng(AvesEntry entry) {
       final lat = entry.catalogMetadata?.latitude;
       final lng = entry.catalogMetadata?.longitude;
       if (lat == null || lng == null) return null;
-      return Tuple2((lat * latLngFactor).round(), (lng * latLngFactor).round());
+      return Tuple2<int, int>((lat * latLngFactor).round(), (lng * latLngFactor).round());
     }
 
-    final knownLocations = <Tuple2, AddressDetails>{};
+    final knownLocations = <Tuple2<int, int>, AddressDetails>{};
     byLocated[true]?.forEach((entry) => knownLocations.putIfAbsent(approximateLatLng(entry), () => entry.addressDetails));
 
     stateNotifier.value = SourceState.locating;
@@ -138,7 +138,7 @@ mixin LocationMixin on SourceBase {
     }
 
     // the same country code could be found with different country names
-    // e.g. if the locale changed between geolocating calls
+    // e.g. if the locale changed between geocoding calls
     // so we merge countries by code, keeping only one name for each code
     final countriesByCode = Map.fromEntries(locations.map((address) => MapEntry(address.countryCode, address.countryName)).where((kv) => kv.key != null && kv.key.isNotEmpty));
     final updatedCountries = countriesByCode.entries.map((kv) => '${kv.value}${LocationFilter.locationSeparator}${kv.key}').toList()..sort(compareAsciiUpperCase);

lib/model/source/media_store_source.dart

@@ -1,14 +1,13 @@
 import 'dart:async';
 import 'dart:math';
 
+import 'package:aves/model/covers.dart';
 import 'package:aves/model/entry.dart';
-import 'package:aves/model/favourite_repo.dart';
-import 'package:aves/model/metadata_db.dart';
+import 'package:aves/model/favourites.dart';
 import 'package:aves/model/settings/settings.dart';
 import 'package:aves/model/source/collection_source.dart';
-import 'package:aves/services/image_file_service.dart';
-import 'package:aves/services/media_store_service.dart';
-import 'package:aves/services/time_service.dart';
+import 'package:aves/model/source/enums.dart';
+import 'package:aves/services/services.dart';
 import 'package:aves/utils/android_file_utils.dart';
 import 'package:aves/utils/math_utils.dart';
 import 'package:firebase_analytics/firebase_analytics.dart';
@@ -26,7 +25,8 @@ class MediaStoreSource extends CollectionSource {
     stateNotifier.value = SourceState.loading;
     await metadataDb.init();
     await favourites.init();
-    final currentTimeZone = await TimeService.getDefaultTimeZone();
+    await covers.init();
+    final currentTimeZone = await timeService.getDefaultTimeZone();
     final catalogTimeZone = settings.catalogTimeZone;
     if (currentTimeZone != catalogTimeZone) {
       // clear catalog metadata to get correct date/times when moving to a different time zone
@@ -50,7 +50,7 @@ class MediaStoreSource extends CollectionSource {
 
     final oldEntries = await metadataDb.loadEntries(); // 400ms for 5500 entries
     final knownDateById = Map.fromEntries(oldEntries.map((entry) => MapEntry(entry.contentId, entry.dateModifiedSecs)));
-    final obsoleteContentIds = (await MediaStoreService.checkObsoleteContentIds(knownDateById.keys.toList())).toSet();
+    final obsoleteContentIds = (await mediaStoreService.checkObsoleteContentIds(knownDateById.keys.toList())).toSet();
     oldEntries.removeWhere((entry) => obsoleteContentIds.contains(entry.contentId));
 
     // show known entries
@@ -60,11 +60,11 @@ class MediaStoreSource extends CollectionSource {
     debugPrint('$runtimeType refresh loaded ${oldEntries.length} known entries, elapsed=${stopwatch.elapsed}');
 
     // clean up obsolete entries
-    metadataDb.removeIds(obsoleteContentIds, updateFavourites: true);
+    await metadataDb.removeIds(obsoleteContentIds, metadataOnly: false);
 
     // verify paths because some apps move files without updating their `last modified date`
     final knownPathById = Map.fromEntries(allEntries.map((entry) => MapEntry(entry.contentId, entry.path)));
-    final movedContentIds = (await MediaStoreService.checkObsoletePaths(knownPathById)).toSet();
+    final movedContentIds = (await mediaStoreService.checkObsoletePaths(knownPathById)).toSet();
     movedContentIds.forEach((contentId) {
       // make obsolete by resetting its modified date
       knownDateById[contentId] = 0;
@@ -81,7 +81,7 @@ class MediaStoreSource extends CollectionSource {
       pendingNewEntries.clear();
     }
 
-    MediaStoreService.getEntries(knownDateById).listen(
+    mediaStoreService.getEntries(knownDateById).listen(
       (entry) {
         pendingNewEntries.add(entry);
         if (pendingNewEntries.length >= refreshCount) {
@@ -114,6 +114,7 @@ class MediaStoreSource extends CollectionSource {
   }
 
   void _reportCollectionDimensions() {
+    if (!settings.isCrashlyticsEnabled) return;
     final analytics = FirebaseAnalytics();
     analytics.setUserProperty(name: 'local_item_count', value: (ceilBy(allEntries.length, 3)).toString());
     analytics.setUserProperty(name: 'album_count', value: (ceilBy(rawAlbums.length, 1)).toString());
@@ -141,9 +142,9 @@ class MediaStoreSource extends CollectionSource {
     }).where((kv) => kv != null));
 
     // clean up obsolete entries
-    final obsoleteContentIds = (await MediaStoreService.checkObsoleteContentIds(uriByContentId.keys.toList())).toSet();
+    final obsoleteContentIds = (await mediaStoreService.checkObsoleteContentIds(uriByContentId.keys.toList())).toSet();
     final obsoleteUris = obsoleteContentIds.map((contentId) => uriByContentId[contentId]).toSet();
-    removeEntries(obsoleteUris);
+    await removeEntries(obsoleteUris);
     obsoleteContentIds.forEach(uriByContentId.remove);
 
     // fetch new entries
@@ -153,7 +154,7 @@ class MediaStoreSource extends CollectionSource {
     for (final kv in uriByContentId.entries) {
       final contentId = kv.key;
       final uri = kv.value;
-      final sourceEntry = await ImageFileService.getEntry(uri, null);
+      final sourceEntry = await imageFileService.getEntry(uri, null);
       if (sourceEntry != null) {
         final existingEntry = allEntries.firstWhere((entry) => entry.contentId == contentId, orElse: () => null);
         // compare paths because some apps move files without updating their `last modified date`
@@ -188,7 +189,7 @@ class MediaStoreSource extends CollectionSource {
   @override
   Future<void> refreshMetadata(Set<AvesEntry> entries) {
     final contentIds = entries.map((entry) => entry.contentId).toSet();
-    metadataDb.removeIds(contentIds, updateFavourites: false);
+    metadataDb.removeIds(contentIds, metadataOnly: true);
     return refresh();
   }
 }

lib/model/source/tag.dart

@@ -1,8 +1,9 @@
 import 'package:aves/model/entry.dart';
 import 'package:aves/model/filters/tag.dart';
 import 'package:aves/model/metadata.dart';
-import 'package:aves/model/metadata_db.dart';
 import 'package:aves/model/source/collection_source.dart';
+import 'package:aves/model/source/enums.dart';
+import 'package:aves/services/services.dart';
 import 'package:collection/collection.dart';
 import 'package:flutter/foundation.dart';
 

lib/services/android_app_service.dart

@@ -41,7 +41,6 @@ class AndroidAppService {
   static Future<bool> edit(String uri, String mimeType) async {
     try {
       return await platform.invokeMethod('edit', <String, dynamic>{
-        'title': 'Edit with:',
         'uri': uri,
         'mimeType': mimeType,
       });
@@ -54,7 +53,6 @@ class AndroidAppService {
   static Future<bool> open(String uri, String mimeType) async {
     try {
       return await platform.invokeMethod('open', <String, dynamic>{
-        'title': 'Open with:',
         'uri': uri,
         'mimeType': mimeType,
       });
@@ -78,7 +76,6 @@ class AndroidAppService {
   static Future<bool> setAs(String uri, String mimeType) async {
     try {
       return await platform.invokeMethod('setAs', <String, dynamic>{
-        'title': 'Set as:',
         'uri': uri,
         'mimeType': mimeType,
       });
@@ -94,7 +91,6 @@ class AndroidAppService {
     final urisByMimeType = groupBy<AvesEntry, String>(entries, (e) => e.mimeTypeAnySubtype).map((k, v) => MapEntry(k, v.map((e) => e.uri).toList()));
     try {
       return await platform.invokeMethod('share', <String, dynamic>{
-        'title': 'Share via:',
         'urisByMimeType': urisByMimeType,
       });
     } on PlatformException catch (e) {
@@ -106,7 +102,6 @@ class AndroidAppService {
   static Future<bool> shareSingle(String uri, String mimeType) async {
     try {
       return await platform.invokeMethod('share', <String, dynamic>{
-        'title': 'Share via:',
         'urisByMimeType': {
           mimeType: [uri]
         },

lib/services/app_shortcut_service.dart

@@ -2,7 +2,7 @@ import 'dart:typed_data';
 
 import 'package:aves/model/entry.dart';
 import 'package:aves/model/filters/filters.dart';
-import 'package:aves/services/image_file_service.dart';
+import 'package:aves/services/services.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 
@@ -30,7 +30,7 @@ class AppShortcutService {
     Uint8List iconBytes;
     if (entry != null) {
       final size = entry.isVideo ? 0.0 : 256.0;
-      iconBytes = await ImageFileService.getThumbnail(
+      iconBytes = await imageFileService.getThumbnail(
         uri: entry.uri,
         mimeType: entry.mimeType,
         pageId: entry.pageId,

lib/services/geocoding_service.dart

@@ -0,0 +1,61 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter/widgets.dart';
+import 'package:latlong/latlong.dart';
+
+class GeocodingService {
+  static const platform = MethodChannel('deckers.thibault/aves/geocoding');
+
+  // geocoding requires Google Play Services
+  static Future<List<Address>> getAddress(LatLng coordinates, String locale) async {
+    try {
+      final result = await platform.invokeMethod('getAddress', <String, dynamic>{
+        'latitude': coordinates.latitude,
+        'longitude': coordinates.longitude,
+        'locale': locale,
+        // we only really need one address, but sometimes the native geocoder
+        // returns nothing with `maxResults` of 1, but succeeds with `maxResults` of 2+
+        'maxResults': 2,
+      });
+      return (result as List).cast<Map>().map((map) => Address.fromMap(map)).toList();
+    } on PlatformException catch (e) {
+      debugPrint('getAddress failed with code=${e.code}, exception=${e.message}, details=${e.details}}');
+    }
+    return [];
+  }
+}
+
+@immutable
+class Address {
+  final String addressLine, adminArea, countryCode, countryName, featureName, locality, postalCode, subAdminArea, subLocality, subThoroughfare, thoroughfare;
+
+  const Address({
+    this.addressLine,
+    this.adminArea,
+    this.countryCode,
+    this.countryName,
+    this.featureName,
+    this.locality,
+    this.postalCode,
+    this.subAdminArea,
+    this.subLocality,
+    this.subThoroughfare,
+    this.thoroughfare,
+  });
+
+  factory Address.fromMap(Map map) => Address(
+        addressLine: map['addressLine'],
+        adminArea: map['adminArea'],
+        countryCode: map['countryCode'],
+        countryName: map['countryName'],
+        featureName: map['featureName'],
+        locality: map['locality'],
+        postalCode: map['postalCode'],
+        subAdminArea: map['subAdminArea'],
+        subLocality: map['subLocality'],
+        subThoroughfare: map['subThoroughfare'],
+        thoroughfare: map['thoroughfare'],
+      );
+}

lib/services/image_file_service.dart

@@ -11,7 +11,82 @@ import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
 import 'package:streams_channel/streams_channel.dart';
 
-class ImageFileService {
+abstract class ImageFileService {
+  Future<AvesEntry> getEntry(String uri, String mimeType);
+
+  Future<Uint8List> getSvg(
+    String uri,
+    String mimeType, {
+    int expectedContentLength,
+    BytesReceivedCallback onBytesReceived,
+  });
+
+  Future<Uint8List> getImage(
+    String uri,
+    String mimeType,
+    int rotationDegrees,
+    bool isFlipped, {
+    int pageId,
+    int expectedContentLength,
+    BytesReceivedCallback onBytesReceived,
+  });
+
+  // `rect`: region to decode, with coordinates in reference to `imageSize`
+  Future<Uint8List> getRegion(
+    String uri,
+    String mimeType,
+    int rotationDegrees,
+    bool isFlipped,
+    int sampleSize,
+    Rectangle<int> regionRect,
+    Size imageSize, {
+    int pageId,
+    Object taskKey,
+    int priority,
+  });
+
+  Future<Uint8List> getThumbnail({
+    @required String uri,
+    @required String mimeType,
+    @required int rotationDegrees,
+    @required int pageId,
+    @required bool isFlipped,
+    @required int dateModifiedSecs,
+    @required double extent,
+    Object taskKey,
+    int priority,
+  });
+
+  Future<void> clearSizedThumbnailDiskCache();
+
+  bool cancelRegion(Object taskKey);
+
+  bool cancelThumbnail(Object taskKey);
+
+  Future<T> resumeLoading<T>(Object taskKey);
+
+  Stream<ImageOpEvent> delete(Iterable<AvesEntry> entries);
+
+  Stream<MoveOpEvent> move(
+    Iterable<AvesEntry> entries, {
+    @required bool copy,
+    @required String destinationAlbum,
+  });
+
+  Stream<ExportOpEvent> export(
+    Iterable<AvesEntry> entries, {
+    String mimeType = MimeTypes.jpeg,
+    @required String destinationAlbum,
+  });
+
+  Future<Map> rename(AvesEntry entry, String newName);
+
+  Future<Map> rotate(AvesEntry entry, {@required bool clockwise});
+
+  Future<Map> flip(AvesEntry entry);
+}
+
+class PlatformImageFileService implements ImageFileService {
   static const platform = MethodChannel('deckers.thibault/aves/image');
   static final StreamsChannel _byteStreamChannel = StreamsChannel('deckers.thibault/aves/imagebytestream');
   static final StreamsChannel _opStreamChannel = StreamsChannel('deckers.thibault/aves/imageopstream');
@@ -31,7 +106,8 @@ class ImageFileService {
     };
   }
 
-  static Future<AvesEntry> getEntry(String uri, String mimeType) async {
+  @override
+  Future<AvesEntry> getEntry(String uri, String mimeType) async {
     try {
       final result = await platform.invokeMethod('getEntry', <String, dynamic>{
         'uri': uri,
@@ -44,7 +120,8 @@ class ImageFileService {
     return null;
   }
 
-  static Future<Uint8List> getSvg(
+  @override
+  Future<Uint8List> getSvg(
     String uri,
     String mimeType, {
     int expectedContentLength,
@@ -59,7 +136,8 @@ class ImageFileService {
         onBytesReceived: onBytesReceived,
       );
 
-  static Future<Uint8List> getImage(
+  @override
+  Future<Uint8List> getImage(
     String uri,
     String mimeType,
     int rotationDegrees,
@@ -106,8 +184,8 @@ class ImageFileService {
     return Future.sync(() => null);
   }
 
-  // `rect`: region to decode, with coordinates in reference to `imageSize`
-  static Future<Uint8List> getRegion(
+  @override
+  Future<Uint8List> getRegion(
     String uri,
     String mimeType,
     int rotationDegrees,
@@ -145,7 +223,8 @@ class ImageFileService {
     );
   }
 
-  static Future<Uint8List> getThumbnail({
+  @override
+  Future<Uint8List> getThumbnail({
     @required String uri,
     @required String mimeType,
     @required int rotationDegrees,
@@ -184,7 +263,8 @@ class ImageFileService {
     );
   }
 
-  static Future<void> clearSizedThumbnailDiskCache() async {
+  @override
+  Future<void> clearSizedThumbnailDiskCache() async {
     try {
       return platform.invokeMethod('clearSizedThumbnailDiskCache');
     } on PlatformException catch (e) {
@@ -192,13 +272,17 @@ class ImageFileService {
     }
   }
 
-  static bool cancelRegion(Object taskKey) => servicePolicy.pause(taskKey, [ServiceCallPriority.getRegion]);
+  @override
+  bool cancelRegion(Object taskKey) => servicePolicy.pause(taskKey, [ServiceCallPriority.getRegion]);
 
-  static bool cancelThumbnail(Object taskKey) => servicePolicy.pause(taskKey, [ServiceCallPriority.getFastThumbnail, ServiceCallPriority.getSizedThumbnail]);
+  @override
+  bool cancelThumbnail(Object taskKey) => servicePolicy.pause(taskKey, [ServiceCallPriority.getFastThumbnail, ServiceCallPriority.getSizedThumbnail]);
 
-  static Future<T> resumeLoading<T>(Object taskKey) => servicePolicy.resume<T>(taskKey);
+  @override
+  Future<T> resumeLoading<T>(Object taskKey) => servicePolicy.resume<T>(taskKey);
 
-  static Stream<ImageOpEvent> delete(Iterable<AvesEntry> entries) {
+  @override
+  Stream<ImageOpEvent> delete(Iterable<AvesEntry> entries) {
     try {
       return _opStreamChannel.receiveBroadcastStream(<String, dynamic>{
         'op': 'delete',
@@ -210,7 +294,8 @@ class ImageFileService {
     }
   }
 
-  static Stream<MoveOpEvent> move(
+  @override
+  Stream<MoveOpEvent> move(
     Iterable<AvesEntry> entries, {
     @required bool copy,
     @required String destinationAlbum,
@@ -228,7 +313,8 @@ class ImageFileService {
     }
   }
 
-  static Stream<ExportOpEvent> export(
+  @override
+  Stream<ExportOpEvent> export(
     Iterable<AvesEntry> entries, {
     String mimeType = MimeTypes.jpeg,
     @required String destinationAlbum,
@@ -246,7 +332,8 @@ class ImageFileService {
     }
   }
 
-  static Future<Map> rename(AvesEntry entry, String newName) async {
+  @override
+  Future<Map> rename(AvesEntry entry, String newName) async {
     try {
       // returns map with: 'contentId' 'path' 'title' 'uri' (all optional)
       final result = await platform.invokeMethod('rename', <String, dynamic>{
@@ -260,7 +347,8 @@ class ImageFileService {
     return {};
   }
 
-  static Future<Map> rotate(AvesEntry entry, {@required bool clockwise}) async {
+  @override
+  Future<Map> rotate(AvesEntry entry, {@required bool clockwise}) async {
     try {
       // returns map with: 'rotationDegrees' 'isFlipped'
       final result = await platform.invokeMethod('rotate', <String, dynamic>{
@@ -274,7 +362,8 @@ class ImageFileService {
     return {};
   }
 
-  static Future<Map> flip(AvesEntry entry) async {
+  @override
+  Future<Map> flip(AvesEntry entry) async {
     try {
       // returns map with: 'rotationDegrees' 'isFlipped'
       final result = await platform.invokeMethod('flip', <String, dynamic>{

lib/services/media_store_service.dart

@@ -5,11 +5,21 @@ import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
 import 'package:streams_channel/streams_channel.dart';
 
-class MediaStoreService {
+abstract class MediaStoreService {
+  Future<List<int>> checkObsoleteContentIds(List<int> knownContentIds);
+
+  Future<List<int>> checkObsoletePaths(Map<int, String> knownPathById);
+
+  // knownEntries: map of contentId -> dateModifiedSecs
+  Stream<AvesEntry> getEntries(Map<int, int> knownEntries);
+}
+
+class PlatformMediaStoreService implements MediaStoreService {
   static const platform = MethodChannel('deckers.thibault/aves/mediastore');
   static final StreamsChannel _streamChannel = StreamsChannel('deckers.thibault/aves/mediastorestream');
 
-  static Future<List<int>> checkObsoleteContentIds(List<int> knownContentIds) async {
+  @override
+  Future<List<int>> checkObsoleteContentIds(List<int> knownContentIds) async {
     try {
       final result = await platform.invokeMethod('checkObsoleteContentIds', <String, dynamic>{
         'knownContentIds': knownContentIds,
@@ -21,7 +31,8 @@ class MediaStoreService {
     return [];
   }
 
-  static Future<List<int>> checkObsoletePaths(Map<int, String> knownPathById) async {
+  @override
+  Future<List<int>> checkObsoletePaths(Map<int, String> knownPathById) async {
     try {
       final result = await platform.invokeMethod('checkObsoletePaths', <String, dynamic>{
         'knownPathById': knownPathById,
@@ -33,8 +44,8 @@ class MediaStoreService {
     return [];
   }
 
-  // knownEntries: map of contentId -> dateModifiedSecs
-  static Stream<AvesEntry> getEntries(Map<int, int> knownEntries) {
+  @override
+  Stream<AvesEntry> getEntries(Map<int, int> knownEntries) {
     try {
       return _streamChannel.receiveBroadcastStream(<String, dynamic>{
         'knownEntries': knownEntries,

lib/services/metadata_service.dart

@@ -8,11 +8,32 @@ import 'package:aves/services/service_policy.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 
-class MetadataService {
+abstract class MetadataService {
+  // returns Map<Map<Key, Value>> (map of directories, each directory being a map of metadata label and value description)
+  Future<Map> getAllMetadata(AvesEntry entry);
+
+  Future<CatalogMetadata> getCatalogMetadata(AvesEntry entry, {bool background = false});
+
+  Future<OverlayMetadata> getOverlayMetadata(AvesEntry entry);
+
+  Future<MultiPageInfo> getMultiPageInfo(AvesEntry entry);
+
+  Future<PanoramaInfo> getPanoramaInfo(AvesEntry entry);
+
+  Future<String> getContentResolverProp(AvesEntry entry, String prop);
+
+  Future<List<Uint8List>> getEmbeddedPictures(String uri);
+
+  Future<List<Uint8List>> getExifThumbnails(AvesEntry entry);
+
+  Future<Map> extractXmpDataProp(AvesEntry entry, String propPath, String propMimeType);
+}
+
+class PlatformMetadataService implements MetadataService {
   static const platform = MethodChannel('deckers.thibault/aves/metadata');
 
-  // returns Map<Map<Key, Value>> (map of directories, each directory being a map of metadata label and value description)
-  static Future<Map> getAllMetadata(AvesEntry entry) async {
+  @override
+  Future<Map> getAllMetadata(AvesEntry entry) async {
     if (entry.isSvg) return null;
 
     try {
@@ -28,7 +49,8 @@ class MetadataService {
     return {};
   }
 
-  static Future<CatalogMetadata> getCatalogMetadata(AvesEntry entry, {bool background = false}) async {
+  @override
+  Future<CatalogMetadata> getCatalogMetadata(AvesEntry entry, {bool background = false}) async {
     if (entry.isSvg) return null;
 
     Future<CatalogMetadata> call() async {
@@ -65,7 +87,8 @@ class MetadataService {
         : call();
   }
 
-  static Future<OverlayMetadata> getOverlayMetadata(AvesEntry entry) async {
+  @override
+  Future<OverlayMetadata> getOverlayMetadata(AvesEntry entry) async {
     if (entry.isSvg) return null;
 
     try {
@@ -82,7 +105,8 @@ class MetadataService {
     return null;
   }
 
-  static Future<MultiPageInfo> getMultiPageInfo(AvesEntry entry) async {
+  @override
+  Future<MultiPageInfo> getMultiPageInfo(AvesEntry entry) async {
     try {
       final result = await platform.invokeMethod('getMultiPageInfo', <String, dynamic>{
         'mimeType': entry.mimeType,
@@ -96,7 +120,8 @@ class MetadataService {
     return null;
   }
 
-  static Future<PanoramaInfo> getPanoramaInfo(AvesEntry entry) async {
+  @override
+  Future<PanoramaInfo> getPanoramaInfo(AvesEntry entry) async {
     try {
       // returns map with values for:
       // 'croppedAreaLeft' (int), 'croppedAreaTop' (int), 'croppedAreaWidth' (int), 'croppedAreaHeight' (int),
@@ -113,7 +138,8 @@ class MetadataService {
     return null;
   }
 
-  static Future<String> getContentResolverProp(AvesEntry entry, String prop) async {
+  @override
+  Future<String> getContentResolverProp(AvesEntry entry, String prop) async {
     try {
       return await platform.invokeMethod('getContentResolverProp', <String, dynamic>{
         'mimeType': entry.mimeType,
@@ -126,7 +152,8 @@ class MetadataService {
     return null;
   }
 
-  static Future<List<Uint8List>> getEmbeddedPictures(String uri) async {
+  @override
+  Future<List<Uint8List>> getEmbeddedPictures(String uri) async {
     try {
       final result = await platform.invokeMethod('getEmbeddedPictures', <String, dynamic>{
         'uri': uri,
@@ -138,7 +165,8 @@ class MetadataService {
     return [];
   }
 
-  static Future<List<Uint8List>> getExifThumbnails(AvesEntry entry) async {
+  @override
+  Future<List<Uint8List>> getExifThumbnails(AvesEntry entry) async {
     try {
       final result = await platform.invokeMethod('getExifThumbnails', <String, dynamic>{
         'mimeType': entry.mimeType,
@@ -152,7 +180,8 @@ class MetadataService {
     return [];
   }
 
-  static Future<Map> extractXmpDataProp(AvesEntry entry, String propPath, String propMimeType) async {
+  @override
+  Future<Map> extractXmpDataProp(AvesEntry entry, String propPath, String propMimeType) async {
     try {
       final result = await platform.invokeMethod('extractXmpDataProp', <String, dynamic>{
         'mimeType': entry.mimeType,

lib/services/services.dart

@@ -0,0 +1,27 @@
+import 'package:aves/model/availability.dart';
+import 'package:aves/model/metadata_db.dart';
+import 'package:aves/services/image_file_service.dart';
+import 'package:aves/services/media_store_service.dart';
+import 'package:aves/services/metadata_service.dart';
+import 'package:aves/services/time_service.dart';
+import 'package:get_it/get_it.dart';
+
+final getIt = GetIt.instance;
+
+final availability = getIt<AvesAvailability>();
+final metadataDb = getIt<MetadataDb>();
+
+final imageFileService = getIt<ImageFileService>();
+final mediaStoreService = getIt<MediaStoreService>();
+final metadataService = getIt<MetadataService>();
+final timeService = getIt<TimeService>();
+
+void initPlatformServices() {
+  getIt.registerLazySingleton<AvesAvailability>(() => LiveAvesAvailability());
+  getIt.registerLazySingleton<MetadataDb>(() => SqfliteMetadataDb());
+
+  getIt.registerLazySingleton<ImageFileService>(() => PlatformImageFileService());
+  getIt.registerLazySingleton<MediaStoreService>(() => PlatformMediaStoreService());
+  getIt.registerLazySingleton<MetadataService>(() => PlatformMetadataService());
+  getIt.registerLazySingleton<TimeService>(() => PlatformTimeService());
+}

lib/services/svg_metadata_service.dart

@@ -1,7 +1,7 @@
 import 'dart:convert';
 
 import 'package:aves/model/entry.dart';
-import 'package:aves/services/image_file_service.dart';
+import 'package:aves/services/services.dart';
 import 'package:aves/utils/string_utils.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
@@ -17,7 +17,7 @@ class SvgMetadataService {
 
   static Future<Size> getSize(AvesEntry entry) async {
     try {
-      final data = await ImageFileService.getSvg(entry.uri, entry.mimeType);
+      final data = await imageFileService.getSvg(entry.uri, entry.mimeType);
 
       final document = XmlDocument.parse(utf8.decode(data));
       final root = document.rootElement;
@@ -59,7 +59,7 @@ class SvgMetadataService {
     }
 
     try {
-      final data = await ImageFileService.getSvg(entry.uri, entry.mimeType);
+      final data = await imageFileService.getSvg(entry.uri, entry.mimeType);
 
       final document = XmlDocument.parse(utf8.decode(data));
       final root = document.rootElement;

lib/services/time_service.dart

@@ -1,10 +1,15 @@
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 
-class TimeService {
+abstract class TimeService {
+  Future<String> getDefaultTimeZone();
+}
+
+class PlatformTimeService implements TimeService {
   static const platform = MethodChannel('deckers.thibault/aves/time');
 
-  static Future<String> getDefaultTimeZone() async {
+  @override
+  Future<String> getDefaultTimeZone() async {
     try {
       return await platform.invokeMethod('getDefaultTimeZone');
     } on PlatformException catch (e) {

lib/theme/durations.dart

@@ -3,7 +3,6 @@ import 'package:flutter/scheduler.dart';
 class Durations {
   // common animations
   static const iconAnimation = Duration(milliseconds: 300);
-  static const opToastAnimation = Duration(milliseconds: 600);
   static const sweeperOpacityAnimation = Duration(milliseconds: 150);
   static const sweepingAnimation = Duration(milliseconds: 650);
   static const popupMenuAnimation = Duration(milliseconds: 300); // ref _PopupMenuRoute._kMenuDuration
@@ -43,7 +42,7 @@ class Durations {
   static const xmpStructArrayCardTransition = Duration(milliseconds: 300);
 
   // delays & refresh intervals
-  static const opToastDisplay = Duration(seconds: 2);
+  static const opToastDisplay = Duration(seconds: 3);
   static const collectionScrollMonitoringTimerDelay = Duration(milliseconds: 100);
   static const collectionScalingCompleteNotificationDelay = Duration(milliseconds: 300);
   static const highlightScrollInitDelay = Duration(milliseconds: 800);

lib/theme/icons.dart

@@ -43,12 +43,12 @@ class AIcons {
   static const IconData openOutside = Icons.open_in_new_outlined;
   static const IconData pin = Icons.push_pin_outlined;
   static const IconData print = Icons.print_outlined;
-  static const IconData refresh = Icons.refresh_outlined;
   static const IconData rename = Icons.title_outlined;
   static const IconData rotateLeft = Icons.rotate_left_outlined;
   static const IconData rotateRight = Icons.rotate_right_outlined;
   static const IconData search = Icons.search_outlined;
   static const IconData select = Icons.select_all_outlined;
+  static const IconData setCover = MdiIcons.imageEditOutline;
   static const IconData share = Icons.share_outlined;
   static const IconData sort = Icons.sort_outlined;
   static const IconData stats = Icons.pie_chart_outlined;

lib/theme/themes.dart

@@ -0,0 +1,51 @@
+import 'dart:ui';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+class Themes {
+  static const _accentColor = Colors.indigoAccent;
+
+  static final darkTheme = ThemeData(
+    brightness: Brightness.dark,
+    accentColor: _accentColor,
+    scaffoldBackgroundColor: Colors.grey[900],
+    buttonColor: _accentColor,
+    dialogBackgroundColor: Colors.grey[850],
+    toggleableActiveColor: _accentColor,
+    tooltipTheme: TooltipThemeData(
+      verticalOffset: 32,
+    ),
+    appBarTheme: AppBarTheme(
+      textTheme: TextTheme(
+        headline6: TextStyle(
+          fontSize: 20,
+          fontWeight: FontWeight.normal,
+          fontFeatures: [FontFeature.enable('smcp')],
+        ),
+      ),
+    ),
+    snackBarTheme: SnackBarThemeData(
+      backgroundColor: Colors.grey[800],
+      contentTextStyle: TextStyle(
+        color: Colors.white,
+      ),
+      behavior: SnackBarBehavior.floating,
+    ),
+    elevatedButtonTheme: ElevatedButtonThemeData(
+      style: ElevatedButton.styleFrom(
+        primary: _accentColor,
+      ),
+    ),
+    outlinedButtonTheme: OutlinedButtonThemeData(
+      style: OutlinedButton.styleFrom(
+        primary: _accentColor,
+      ),
+    ),
+    textButtonTheme: TextButtonThemeData(
+      style: TextButton.styleFrom(
+        primary: Colors.white,
+      ),
+    ),
+  );
+}

lib/utils/android_file_utils.dart

@@ -1,6 +1,7 @@
 import 'package:aves/services/android_app_service.dart';
 import 'package:aves/services/android_file_service.dart';
 import 'package:aves/utils/change_notifier.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 import 'package:path/path.dart';
@@ -115,21 +116,30 @@ class Package {
 
 @immutable
 class StorageVolume {
-  final String description, path, state;
+  final String _description, path, state;
   final bool isPrimary, isRemovable;
 
   const StorageVolume({
-    this.description,
+    String description,
     this.isPrimary,
     this.isRemovable,
     this.path,
     this.state,
-  });
+  }) : _description = description;
+
+  String getDescription(BuildContext context) {
+    if (_description != null) return _description;
+    // ideally, the context should always be provided, but in some cases (e.g. album comparison),
+    // this would require numerous additional methods to have the context as argument
+    // for such a minor benefit: fallback volume description on Android < N
+    if (isPrimary) return context?.l10n?.storageVolumeDescriptionFallbackPrimary ?? 'Internal Storage';
+    return context?.l10n?.storageVolumeDescriptionFallbackNonPrimary ?? 'SD card';
+  }
 
   factory StorageVolume.fromMap(Map map) {
     final isPrimary = map['isPrimary'] ?? false;
     return StorageVolume(
-      description: map['description'] ?? (isPrimary ? 'Internal storage' : 'SD card'),
+      description: map['description'],
       isPrimary: isPrimary,
       isRemovable: map['isRemovable'] ?? false,
       path: map['path'] ?? '',
@@ -167,11 +177,9 @@ class VolumeRelativeDirectory {
     );
   }
 
-  String get directoryDescription => relativeDir.isEmpty ? 'root' : '“$relativeDir”';
-
-  String get volumeDescription {
+  String getVolumeDescription(BuildContext context) {
     final volume = androidFileUtils.storageVolumes.firstWhere((volume) => volume.path == volumePath, orElse: () => null);
-    return volume?.description ?? volumePath;
+    return volume?.getDescription(context) ?? volumePath;
   }
 
   @override

lib/utils/constants.dart

@@ -21,7 +21,6 @@ class Constants {
   );
 
   static const overlayUnknown = '—'; // em dash
-  static const infoUnknown = 'unknown';
 
   static final pointNemo = LatLng(-48.876667, -123.393333);
 
@@ -66,55 +65,13 @@ class Constants {
     ),
   ];
 
-  static const List<Dependency> flutterPackages = [
-    Dependency(
-      name: 'Flutter',
-      license: 'BSD 3-Clause',
-      licenseUrl: 'https://github.com/flutter/flutter/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/flutter/flutter',
-    ),
-    Dependency(
-      name: 'Charts',
-      license: 'Apache 2.0',
-      licenseUrl: 'https://github.com/google/charts/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/google/charts',
-    ),
-    Dependency(
-      name: 'Collection',
-      license: 'BSD 3-Clause',
-      licenseUrl: 'https://github.com/dart-lang/collection/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/dart-lang/collection',
-    ),
+  static const List<Dependency> flutterPlugins = [
     Dependency(
       name: 'Connectivity',
       license: 'BSD 3-Clause',
       licenseUrl: 'https://github.com/flutter/plugins/blob/master/packages/connectivity/connectivity/LICENSE',
       sourceUrl: 'https://github.com/flutter/plugins/blob/master/packages/connectivity/connectivity',
     ),
-    Dependency(
-      name: 'Country Code',
-      license: 'MIT',
-      licenseUrl: 'https://github.com/denixport/dart.country/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/denixport/dart.country',
-    ),
-    Dependency(
-      name: 'Decorated Icon',
-      license: 'MIT',
-      licenseUrl: 'https://github.com/benPesso/flutter_decorated_icon/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/benPesso/flutter_decorated_icon',
-    ),
-    Dependency(
-      name: 'Event Bus',
-      license: 'MIT',
-      licenseUrl: 'https://github.com/marcojakob/dart-event-bus/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/marcojakob/dart-event-bus',
-    ),
-    Dependency(
-      name: 'Expansion Tile Card',
-      license: 'BSD 3-Clause',
-      licenseUrl: 'https://github.com/Skylled/expansion_tile_card/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/Skylled/expansion_tile_card',
-    ),
     Dependency(
       name: 'FlutterFire (Core, Analytics, Crashlytics)',
       license: 'BSD 3-Clause',
@@ -122,10 +79,160 @@ class Constants {
       sourceUrl: 'https://github.com/FirebaseExtended/flutterfire',
     ),
     Dependency(
-      name: 'Flushbar',
+      name: 'Flutter ijkplayer',
+      license: 'MIT',
+      licenseUrl: 'https://github.com/CaiJingLong/flutter_ijkplayer/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/CaiJingLong/flutter_ijkplayer',
+    ),
+    Dependency(
+      name: 'Google API Availability',
+      license: 'MIT',
+      licenseUrl: 'https://github.com/Baseflow/flutter-google-api-availability/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/Baseflow/flutter-google-api-availability',
+    ),
+    Dependency(
+      name: 'Google Maps for Flutter',
+      license: 'BSD 3-Clause',
+      licenseUrl: 'https://github.com/flutter/plugins/blob/master/packages/google_maps_flutter/google_maps_flutter/LICENSE',
+      sourceUrl: 'https://github.com/flutter/plugins/blob/master/packages/google_maps_flutter/google_maps_flutter',
+    ),
+    Dependency(
+      name: 'Package Info',
+      license: 'BSD 3-Clause',
+      licenseUrl: 'https://github.com/flutter/plugins/blob/master/packages/package_info/LICENSE',
+      sourceUrl: 'https://github.com/flutter/plugins/tree/master/packages/package_info',
+    ),
+    Dependency(
+      name: 'Permission Handler',
+      license: 'MIT',
+      licenseUrl: 'https://github.com/Baseflow/flutter-permission-handler/blob/develop/permission_handler/LICENSE',
+      sourceUrl: 'https://github.com/Baseflow/flutter-permission-handler',
+    ),
+    Dependency(
+      name: 'Printing',
       license: 'Apache 2.0',
-      licenseUrl: 'https://github.com/AndreHaueisen/flushbar/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/AndreHaueisen/flushbar',
+      licenseUrl: 'https://github.com/DavBfr/dart_pdf/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/DavBfr/dart_pdf',
+    ),
+    Dependency(
+      name: 'Shared Preferences',
+      license: 'BSD 3-Clause',
+      licenseUrl: 'https://github.com/flutter/plugins/blob/master/packages/shared_preferences/shared_preferences/LICENSE',
+      sourceUrl: 'https://github.com/flutter/plugins/tree/master/packages/shared_preferences/shared_preferences',
+    ),
+    Dependency(
+      name: 'sqflite',
+      license: 'MIT',
+      licenseUrl: 'https://github.com/tekartik/sqflite/blob/master/sqflite/LICENSE',
+      sourceUrl: 'https://github.com/tekartik/sqflite',
+    ),
+    Dependency(
+      name: 'Streams Channel',
+      license: 'Apache 2.0',
+      licenseUrl: 'https://github.com/loup-v/streams_channel/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/loup-v/streams_channel',
+    ),
+    Dependency(
+      name: 'URL Launcher',
+      license: 'BSD 3-Clause',
+      licenseUrl: 'https://github.com/flutter/plugins/blob/master/packages/url_launcher/url_launcher/LICENSE',
+      sourceUrl: 'https://github.com/flutter/plugins/blob/master/packages/url_launcher/url_launcher',
+    ),
+  ];
+
+  static const List<Dependency> dartPackages = [
+    Dependency(
+      name: 'Collection',
+      license: 'BSD 3-Clause',
+      licenseUrl: 'https://github.com/dart-lang/collection/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/dart-lang/collection',
+    ),
+    Dependency(
+      name: 'Country Code',
+      license: 'MIT',
+      licenseUrl: 'https://github.com/denixport/dart.country/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/denixport/dart.country',
+    ),
+    Dependency(
+      name: 'Event Bus',
+      license: 'MIT',
+      licenseUrl: 'https://github.com/marcojakob/dart-event-bus/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/marcojakob/dart-event-bus',
+    ),
+    Dependency(
+      name: 'Get It',
+      license: 'MIT',
+      licenseUrl: 'https://github.com/fluttercommunity/get_it/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/fluttercommunity/get_it',
+    ),
+    Dependency(
+      name: 'Github',
+      license: 'MIT',
+      licenseUrl: 'https://github.com/SpinlockLabs/github.dart/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/SpinlockLabs/github.dart',
+    ),
+    Dependency(
+      name: 'Intl',
+      license: 'BSD 3-Clause',
+      licenseUrl: 'https://github.com/dart-lang/intl/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/dart-lang/intl',
+    ),
+    Dependency(
+      name: 'LatLong',
+      license: 'Apache 2.0',
+      licenseUrl: 'https://github.com/MikeMitterer/dart-latlong/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/MikeMitterer/dart-latlong',
+    ),
+    Dependency(
+      name: 'PDF for Dart and Flutter',
+      license: 'Apache 2.0',
+      licenseUrl: 'https://github.com/DavBfr/dart_pdf/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/DavBfr/dart_pdf',
+    ),
+    Dependency(
+      name: 'Pedantic',
+      license: 'BSD 3-Clause',
+      licenseUrl: 'https://github.com/dart-lang/pedantic/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/dart-lang/pedantic',
+    ),
+    Dependency(
+      name: 'Tuple',
+      license: 'BSD 2-Clause',
+      licenseUrl: 'https://github.com/dart-lang/tuple/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/dart-lang/tuple',
+    ),
+    Dependency(
+      name: 'Version',
+      license: 'BSD 3-Clause',
+      licenseUrl: 'https://github.com/dartninja/version/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/dartninja/version',
+    ),
+    Dependency(
+      name: 'XML',
+      license: 'MIT',
+      licenseUrl: 'https://github.com/renggli/dart-xml/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/renggli/dart-xml',
+    ),
+  ];
+
+  static const List<Dependency> flutterPackages = [
+    Dependency(
+      name: 'Charts',
+      license: 'Apache 2.0',
+      licenseUrl: 'https://github.com/google/charts/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/google/charts',
+    ),
+    Dependency(
+      name: 'Decorated Icon',
+      license: 'MIT',
+      licenseUrl: 'https://github.com/benPesso/flutter_decorated_icon/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/benPesso/flutter_decorated_icon',
+    ),
+    Dependency(
+      name: 'Expansion Tile Card',
+      license: 'BSD 3-Clause',
+      licenseUrl: 'https://github.com/Skylled/expansion_tile_card/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/Skylled/expansion_tile_card',
     ),
     Dependency(
       name: 'Flutter Highlight',
@@ -134,10 +241,10 @@ class Constants {
       sourceUrl: 'https://github.com/git-touch/highlight',
     ),
     Dependency(
-      name: 'Flutter ijkplayer',
+      name: 'Flutter Localized Locales',
       license: 'MIT',
-      licenseUrl: 'https://github.com/CaiJingLong/flutter_ijkplayer/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/CaiJingLong/flutter_ijkplayer',
+      licenseUrl: 'https://github.com/guidezpl/flutter-localized-locales/blob/master/LICENSE',
+      sourceUrl: 'https://github.com/guidezpl/flutter-localized-locales',
     ),
     Dependency(
       name: 'Flutter Map',
@@ -163,36 +270,6 @@ class Constants {
       licenseUrl: 'https://github.com/dnfield/flutter_svg/blob/master/LICENSE',
       sourceUrl: 'https://github.com/dnfield/flutter_svg',
     ),
-    Dependency(
-      name: 'Geocoder',
-      license: 'MIT',
-      licenseUrl: 'https://github.com/aloisdeniel/flutter_geocoder/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/aloisdeniel/flutter_geocoder',
-    ),
-    Dependency(
-      name: 'Github',
-      license: 'MIT',
-      licenseUrl: 'https://github.com/SpinlockLabs/github.dart/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/SpinlockLabs/github.dart',
-    ),
-    Dependency(
-      name: 'Google Maps for Flutter',
-      license: 'BSD 3-Clause',
-      licenseUrl: 'https://github.com/flutter/plugins/blob/master/packages/google_maps_flutter/google_maps_flutter/LICENSE',
-      sourceUrl: 'https://github.com/flutter/plugins/blob/master/packages/google_maps_flutter/google_maps_flutter',
-    ),
-    Dependency(
-      name: 'Intl',
-      license: 'BSD 3-Clause',
-      licenseUrl: 'https://github.com/dart-lang/intl/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/dart-lang/intl',
-    ),
-    Dependency(
-      name: 'LatLong',
-      license: 'Apache 2.0',
-      licenseUrl: 'https://github.com/MikeMitterer/dart-latlong/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/MikeMitterer/dart-latlong',
-    ),
     Dependency(
       name: 'Material Design Icons Flutter',
       license: 'MIT',
@@ -205,12 +282,6 @@ class Constants {
       licenseUrl: 'https://github.com/boyan01/overlay_support/blob/master/LICENSE',
       sourceUrl: 'https://github.com/boyan01/overlay_support',
     ),
-    Dependency(
-      name: 'Package Info',
-      license: 'BSD 3-Clause',
-      licenseUrl: 'https://github.com/flutter/plugins/blob/master/packages/package_info/LICENSE',
-      sourceUrl: 'https://github.com/flutter/plugins/tree/master/packages/package_info',
-    ),
     Dependency(
       name: 'Palette Generator',
       license: 'BSD 3-Clause',
@@ -223,84 +294,18 @@ class Constants {
       licenseUrl: 'https://github.com/zesage/panorama/blob/master/LICENSE',
       sourceUrl: 'https://github.com/zesage/panorama',
     ),
-    Dependency(
-      name: 'PDF for Dart and Flutter',
-      license: 'Apache 2.0',
-      licenseUrl: 'https://github.com/DavBfr/dart_pdf/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/DavBfr/dart_pdf',
-    ),
-    Dependency(
-      name: 'Pedantic',
-      license: 'BSD 3-Clause',
-      licenseUrl: 'https://github.com/dart-lang/pedantic/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/dart-lang/pedantic',
-    ),
     Dependency(
       name: 'Percent Indicator',
       license: 'BSD 2-Clause',
       licenseUrl: 'https://github.com/diegoveloper/flutter_percent_indicator/blob/master/LICENSE',
       sourceUrl: 'https://github.com/diegoveloper/flutter_percent_indicator/',
     ),
-    Dependency(
-      name: 'Permission Handler',
-      license: 'MIT',
-      licenseUrl: 'https://github.com/Baseflow/flutter-permission-handler/blob/develop/permission_handler/LICENSE',
-      sourceUrl: 'https://github.com/Baseflow/flutter-permission-handler',
-    ),
-    Dependency(
-      name: 'Printing',
-      license: 'Apache 2.0',
-      licenseUrl: 'https://github.com/DavBfr/dart_pdf/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/DavBfr/dart_pdf',
-    ),
     Dependency(
       name: 'Provider',
       license: 'MIT',
       licenseUrl: 'https://github.com/rrousselGit/provider/blob/master/LICENSE',
       sourceUrl: 'https://github.com/rrousselGit/provider',
     ),
-    Dependency(
-      name: 'Shared Preferences',
-      license: 'BSD 3-Clause',
-      licenseUrl: 'https://github.com/flutter/plugins/blob/master/packages/shared_preferences/shared_preferences/LICENSE',
-      sourceUrl: 'https://github.com/flutter/plugins/tree/master/packages/shared_preferences/shared_preferences',
-    ),
-    Dependency(
-      name: 'sqflite',
-      license: 'MIT',
-      licenseUrl: 'https://github.com/tekartik/sqflite/blob/master/sqflite/LICENSE',
-      sourceUrl: 'https://github.com/tekartik/sqflite',
-    ),
-    Dependency(
-      name: 'Streams Channel',
-      license: 'Apache 2.0',
-      licenseUrl: 'https://github.com/loup-v/streams_channel/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/loup-v/streams_channel',
-    ),
-    Dependency(
-      name: 'Tuple',
-      license: 'BSD 2-Clause',
-      licenseUrl: 'https://github.com/dart-lang/tuple/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/dart-lang/tuple',
-    ),
-    Dependency(
-      name: 'URL Launcher',
-      license: 'BSD 3-Clause',
-      licenseUrl: 'https://github.com/flutter/plugins/blob/master/packages/url_launcher/url_launcher/LICENSE',
-      sourceUrl: 'https://github.com/flutter/plugins/blob/master/packages/url_launcher/url_launcher',
-    ),
-    Dependency(
-      name: 'Version',
-      license: 'BSD 3-Clause',
-      licenseUrl: 'https://github.com/dartninja/version/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/dartninja/version',
-    ),
-    Dependency(
-      name: 'XML',
-      license: 'MIT',
-      licenseUrl: 'https://github.com/renggli/dart-xml/blob/master/LICENSE',
-      sourceUrl: 'https://github.com/renggli/dart-xml',
-    ),
   ];
 }
 

lib/widgets/about/about_page.dart

@@ -1,7 +1,8 @@
 import 'package:aves/widgets/about/app_ref.dart';
 import 'package:aves/widgets/about/credits.dart';
 import 'package:aves/widgets/about/licenses.dart';
-import 'package:aves/widgets/about/new_version.dart';
+import 'package:aves/widgets/about/update.dart';
+import 'package:aves/widgets/common/extensions/build_context.dart';
 import 'package:flutter/material.dart';
 
 class AboutPage extends StatelessWidget {
@@ -11,7 +12,7 @@ class AboutPage extends StatelessWidget {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: Text('About'),
+        title: Text(context.l10n.aboutPageTitle),
       ),
       body: SafeArea(
         child: CustomScrollView(
@@ -23,7 +24,7 @@ class AboutPage extends StatelessWidget {
                   [
                     AppReference(),
                     Divider(),
-                    AboutNewVersion(),
+                    AboutUpdate(),
                     AboutCredits(),
                     Divider(),
                   ],