From aa0c978a6534a9c4c7fe73a9219ce3abfe92ce3a Mon Sep 17 00:00:00 2001
From: OxygenCobalt <oxycblt@abstractr.net>
Date: Sat, 13 Mar 2021 17:07:42 -0700
Subject: [PATCH] Add blacklist UI

Add a UI for the blacklist functionality.
---
 app/build.gradle                              |  1 +
 app/src/main/AndroidManifest.xml              |  1 +
 .../auxio/database/PlaybackStateDatabase.kt   |  2 +-
 .../oxycblt/auxio/detail/DetailFragment.kt    | 12 ---
 .../auxio/settings/SettingsFragment.kt        |  9 +-
 .../auxio/settings/SettingsListFragment.kt    | 10 ++-
 .../oxycblt/auxio/settings/SettingsManager.kt |  3 +-
 .../settings/blacklist/BlacklistDialog.kt     | 85 +++++++++++++++++++
 .../blacklist/BlacklistEntryAdapter.kt        | 45 ++++++++++
 .../settings/blacklist/BlacklistViewModel.kt  | 26 ++++++
 .../org/oxycblt/auxio/ui/InterfaceUtils.kt    |  4 +-
 app/src/main/res/drawable/ic_add.xml          | 11 +++
 .../main/res/layout/fragment_blacklist.xml    | 71 ++++++++++++++++
 .../main/res/layout/item_blacklist_entry.xml  | 33 +++++++
 app/src/main/res/values-de/strings.xml        |  6 +-
 app/src/main/res/values/dimens.xml            |  4 +
 app/src/main/res/values/strings.xml           | 17 +++-
 app/src/main/res/values/styles.xml            | 11 +++
 app/src/main/res/xml/prefs_main.xml           | 16 +++-
 19 files changed, 335 insertions(+), 32 deletions(-)
 create mode 100644 app/src/main/java/org/oxycblt/auxio/settings/blacklist/BlacklistDialog.kt
 create mode 100644 app/src/main/java/org/oxycblt/auxio/settings/blacklist/BlacklistEntryAdapter.kt
 create mode 100644 app/src/main/java/org/oxycblt/auxio/settings/blacklist/BlacklistViewModel.kt
 create mode 100644 app/src/main/res/drawable/ic_add.xml
 create mode 100644 app/src/main/res/layout/fragment_blacklist.xml
 create mode 100644 app/src/main/res/layout/item_blacklist_entry.xml

diff --git a/app/build.gradle b/app/build.gradle
index e63f5a932..bbef156ef 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -105,6 +105,7 @@ dependencies {
 
     // Dialogs
     implementation 'com.afollestad.material-dialogs:core:3.3.0'
+    implementation 'com.afollestad.material-dialogs:files:3.3.0'
 
     // --- DEV ---
 
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 06d462b82..051b31d24 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -17,6 +17,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:exported="true"
         android:supportsRtl="true"
+        android:requestLegacyExternalStorage="true"
         android:theme="@style/Theme.Base">
         <activity
             android:name=".MainActivity"
diff --git a/app/src/main/java/org/oxycblt/auxio/database/PlaybackStateDatabase.kt b/app/src/main/java/org/oxycblt/auxio/database/PlaybackStateDatabase.kt
index ae725113f..6a9d22b82 100644
--- a/app/src/main/java/org/oxycblt/auxio/database/PlaybackStateDatabase.kt
+++ b/app/src/main/java/org/oxycblt/auxio/database/PlaybackStateDatabase.kt
@@ -163,7 +163,7 @@ class PlaybackStateDatabase(context: Context) :
 
         var position = 0
 
-        // Try to write out the entirety of the queue. Failed inserts will be skipped.
+        // Try to write out the entirety of the queue.
         while (position < queueItems.size) {
             var i = position
 
diff --git a/app/src/main/java/org/oxycblt/auxio/detail/DetailFragment.kt b/app/src/main/java/org/oxycblt/auxio/detail/DetailFragment.kt
index 18f4394e4..46b166085 100644
--- a/app/src/main/java/org/oxycblt/auxio/detail/DetailFragment.kt
+++ b/app/src/main/java/org/oxycblt/auxio/detail/DetailFragment.kt
@@ -93,18 +93,6 @@ abstract class DetailFragment : Fragment() {
                     }
                 }
             }
-
-            // Since there is no elevation when the scroll position is zero, dont show
-            // the overscroll indicator.
-            addOnScrollListener(object : RecyclerView.OnScrollListener() {
-                override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
-                    overScrollMode = if (computeVerticalScrollOffset() == 0) {
-                        View.OVER_SCROLL_NEVER
-                    } else {
-                        View.OVER_SCROLL_IF_CONTENT_SCROLLS
-                    }
-                }
-            })
         }
     }
 
diff --git a/app/src/main/java/org/oxycblt/auxio/settings/SettingsFragment.kt b/app/src/main/java/org/oxycblt/auxio/settings/SettingsFragment.kt
index 3ff79de49..902282d33 100644
--- a/app/src/main/java/org/oxycblt/auxio/settings/SettingsFragment.kt
+++ b/app/src/main/java/org/oxycblt/auxio/settings/SettingsFragment.kt
@@ -5,7 +5,6 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
-import org.oxycblt.auxio.R
 import org.oxycblt.auxio.databinding.FragmentSettingsBinding
 import org.oxycblt.auxio.settings.ui.AboutDialog
 
@@ -22,12 +21,8 @@ class SettingsFragment : Fragment() {
         val binding = FragmentSettingsBinding.inflate(inflater)
 
         binding.settingsToolbar.setOnMenuItemClickListener {
-            if (it.itemId == R.id.action_open_about) {
-                AboutDialog().show(childFragmentManager, TAG_ABOUT_DIALOG)
-                true
-            } else {
-                false
-            }
+            AboutDialog().show(childFragmentManager, TAG_ABOUT_DIALOG)
+            true
         }
 
         return binding.root
diff --git a/app/src/main/java/org/oxycblt/auxio/settings/SettingsListFragment.kt b/app/src/main/java/org/oxycblt/auxio/settings/SettingsListFragment.kt
index 589f8940f..efbbcc730 100644
--- a/app/src/main/java/org/oxycblt/auxio/settings/SettingsListFragment.kt
+++ b/app/src/main/java/org/oxycblt/auxio/settings/SettingsListFragment.kt
@@ -13,6 +13,7 @@ import org.oxycblt.auxio.R
 import org.oxycblt.auxio.logD
 import org.oxycblt.auxio.playback.PlaybackViewModel
 import org.oxycblt.auxio.recycler.DisplayMode
+import org.oxycblt.auxio.settings.blacklist.BlacklistDialog
 import org.oxycblt.auxio.settings.ui.AccentDialog
 import org.oxycblt.auxio.ui.Accent
 
@@ -123,12 +124,19 @@ class SettingsListFragment : PreferenceFragmentCompat() {
                     }
                 }
 
-                SettingsManager.Keys.KEY_DEBUG_SAVE -> {
+                SettingsManager.Keys.KEY_SAVE_STATE -> {
                     onPreferenceClickListener = Preference.OnPreferenceClickListener {
                         playbackModel.savePlaybackState(requireContext())
                         true
                     }
                 }
+
+                SettingsManager.Keys.KEY_BLACKLIST -> {
+                    onPreferenceClickListener = Preference.OnPreferenceClickListener {
+                        BlacklistDialog().show(childFragmentManager, TAG_ACCENT_DIALOG)
+                        true
+                    }
+                }
             }
         }
     }
diff --git a/app/src/main/java/org/oxycblt/auxio/settings/SettingsManager.kt b/app/src/main/java/org/oxycblt/auxio/settings/SettingsManager.kt
index 5aa83289e..1c3dab7e3 100644
--- a/app/src/main/java/org/oxycblt/auxio/settings/SettingsManager.kt
+++ b/app/src/main/java/org/oxycblt/auxio/settings/SettingsManager.kt
@@ -231,7 +231,8 @@ class SettingsManager private constructor(context: Context) :
 
         const val KEY_LIBRARY_SORT_MODE = "KEY_LIBRARY_SORT_MODE"
         const val KEY_SEARCH_FILTER_MODE = "KEY_SEARCH"
-        const val KEY_DEBUG_SAVE = "KEY_SAVE_STATE"
+        const val KEY_SAVE_STATE = "KEY_SAVE_STATE"
+        const val KEY_BLACKLIST = "KEY_BLACKLIST"
 
         @Deprecated("Use the new KEY_ACCENT instead.")
         const val KEY_ACCENT_OLD = "KEY_ACCENT"
diff --git a/app/src/main/java/org/oxycblt/auxio/settings/blacklist/BlacklistDialog.kt b/app/src/main/java/org/oxycblt/auxio/settings/blacklist/BlacklistDialog.kt
new file mode 100644
index 000000000..e5dd98585
--- /dev/null
+++ b/app/src/main/java/org/oxycblt/auxio/settings/blacklist/BlacklistDialog.kt
@@ -0,0 +1,85 @@
+package org.oxycblt.auxio.settings.blacklist
+
+import android.os.Bundle
+import android.os.Environment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.activityViewModels
+import com.afollestad.materialdialogs.MaterialDialog
+import com.afollestad.materialdialogs.WhichButton
+import com.afollestad.materialdialogs.actions.setActionButtonEnabled
+import com.afollestad.materialdialogs.files.folderChooser
+import com.afollestad.materialdialogs.files.selectedFolder
+import com.google.android.material.bottomsheet.BottomSheetDialogFragment
+import org.oxycblt.auxio.R
+import org.oxycblt.auxio.databinding.FragmentBlacklistBinding
+import org.oxycblt.auxio.ui.createToast
+import java.io.File
+
+class BlacklistDialog : BottomSheetDialogFragment() {
+    private val blacklistModel: BlacklistViewModel by activityViewModels()
+
+    override fun getTheme() = R.style.Theme_BottomSheetFix
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        val binding = FragmentBlacklistBinding.inflate(inflater)
+
+        val adapter = BlacklistEntryAdapter { path ->
+            blacklistModel.removePath(path)
+        }
+
+        // --- UI SETUP ---
+
+        binding.blacklistRecycler.adapter = adapter
+        binding.blacklistAdd.setOnClickListener {
+            MaterialDialog(requireActivity()).show {
+                positiveButton(R.string.label_add) {
+                    onFolderSelected()
+                }
+
+                negativeButton()
+
+                folderChooser(
+                    requireContext(),
+                    initialDirectory = File(Environment.getExternalStorageDirectory().absolutePath),
+                    waitForPositiveButton = false,
+                    emptyTextRes = R.string.error_no_dirs
+                )
+
+                // Still need to force-reenable the positive button even after flagging the
+                // disabling as false when setting up the file chooser
+                // Gotta love third-party libraries
+                setActionButtonEnabled(WhichButton.POSITIVE, true)
+            }
+        }
+
+        // --- VIEWMODEL SETUP ---
+
+        blacklistModel.paths.observe(viewLifecycleOwner) { paths ->
+            adapter.submitList(paths)
+        }
+
+        return binding.root
+    }
+
+    private fun MaterialDialog.onFolderSelected() {
+        selectedFolder()?.absolutePath?.let { path ->
+            // Due to how Auxio's navigation flow works, dont allow the main root directory
+            // to be excluded, as that would lead to the user being stuck at the "No Music Found"
+            // error.
+            if (path == Environment.getExternalStorageDirectory().absolutePath) {
+                getString(R.string.error_folder_would_brick_app)
+                    .createToast(requireContext())
+
+                return
+            }
+
+            blacklistModel.addPath(path)
+        }
+    }
+}
diff --git a/app/src/main/java/org/oxycblt/auxio/settings/blacklist/BlacklistEntryAdapter.kt b/app/src/main/java/org/oxycblt/auxio/settings/blacklist/BlacklistEntryAdapter.kt
new file mode 100644
index 000000000..2ce4a50e6
--- /dev/null
+++ b/app/src/main/java/org/oxycblt/auxio/settings/blacklist/BlacklistEntryAdapter.kt
@@ -0,0 +1,45 @@
+package org.oxycblt.auxio.settings.blacklist
+
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import org.oxycblt.auxio.databinding.ItemBlacklistEntryBinding
+import org.oxycblt.auxio.ui.inflater
+
+class BlacklistEntryAdapter(
+    private val onClear: (String) -> Unit
+) : RecyclerView.Adapter<BlacklistEntryAdapter.ViewHolder>() {
+    private var paths = mutableListOf<String>()
+
+    override fun getItemCount() = paths.size
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        return ViewHolder(ItemBlacklistEntryBinding.inflate(parent.context.inflater))
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bind(paths[position])
+    }
+
+    fun submitList(newPaths: MutableList<String>) {
+        paths = newPaths
+        notifyDataSetChanged()
+    }
+
+    inner class ViewHolder(
+        private val binding: ItemBlacklistEntryBinding
+    ) : RecyclerView.ViewHolder(binding.root) {
+        init {
+            binding.root.layoutParams = RecyclerView.LayoutParams(
+                RecyclerView.LayoutParams.MATCH_PARENT, RecyclerView.LayoutParams.WRAP_CONTENT
+            )
+        }
+
+        fun bind(path: String) {
+            binding.blacklistTitle.text = path
+            binding.blacklistTitle.requestLayout()
+            binding.blacklistClear.setOnClickListener {
+                onClear(path)
+            }
+        }
+    }
+}
diff --git a/app/src/main/java/org/oxycblt/auxio/settings/blacklist/BlacklistViewModel.kt b/app/src/main/java/org/oxycblt/auxio/settings/blacklist/BlacklistViewModel.kt
new file mode 100644
index 000000000..ba8ab7878
--- /dev/null
+++ b/app/src/main/java/org/oxycblt/auxio/settings/blacklist/BlacklistViewModel.kt
@@ -0,0 +1,26 @@
+package org.oxycblt.auxio.settings.blacklist
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+
+class BlacklistViewModel : ViewModel() {
+    private val mPaths = MutableLiveData(mutableListOf<String>())
+    val paths: LiveData<MutableList<String>> get() = mPaths
+
+    fun addPath(path: String) {
+        if (mPaths.value!!.contains(path)) {
+            return
+        }
+
+        mPaths.value!!.add(path)
+
+        mPaths.value = mPaths.value
+    }
+
+    fun removePath(path: String) {
+        mPaths.value!!.remove(path)
+
+        mPaths.value = mPaths.value
+    }
+}
diff --git a/app/src/main/java/org/oxycblt/auxio/ui/InterfaceUtils.kt b/app/src/main/java/org/oxycblt/auxio/ui/InterfaceUtils.kt
index 368b3f8ed..94b7e4b1d 100644
--- a/app/src/main/java/org/oxycblt/auxio/ui/InterfaceUtils.kt
+++ b/app/src/main/java/org/oxycblt/auxio/ui/InterfaceUtils.kt
@@ -57,9 +57,9 @@ fun TextView.setTextColorResource(@ColorRes color: Int) {
  */
 fun MaterialButton.applyAccents(highlighted: Boolean) {
     if (highlighted) {
-        backgroundTintList = Accent.get().color.toStateList(context)
+        backgroundTintList = Accent.get().getStateList(context)
     } else {
-        setTextColor(Accent.get().color.toColor(context))
+        setTextColorResource(Accent.get().color)
     }
 }
 
diff --git a/app/src/main/res/drawable/ic_add.xml b/app/src/main/res/drawable/ic_add.xml
new file mode 100644
index 000000000..64b5e7b70
--- /dev/null
+++ b/app/src/main/res/drawable/ic_add.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="30dp"
+    android:height="30dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+</vector>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_blacklist.xml b/app/src/main/res/layout/fragment_blacklist.xml
new file mode 100644
index 000000000..ec4ec3c1c
--- /dev/null
+++ b/app/src/main/res/layout/fragment_blacklist.xml
@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:tools="http://schemas.android.com/tools"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+    
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/background"
+        android:theme="@style/Theme.Neutral"
+        android:paddingBottom="@dimen/margin_medium"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/blacklist_header"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:fontFamily="@font/inter_exbold"
+            android:textColor="?attr/colorPrimary"
+            android:text="@string/setting_content_blacklist"
+            android:textSize="@dimen/text_size_toolbar_header"
+            android:padding="@dimen/padding_medium"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/blacklist_recycler"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:overScrollMode="never"
+            tools:itemCount="2"
+            tools:listitem="@layout/item_blacklist_entry"
+            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+            app:layout_constraintTop_toBottomOf="@+id/blacklist_header" />
+
+        <TextView
+            android:id="@+id/blacklist_add"
+            style="@style/ItemText.Primary"
+            android:padding="@dimen/margin_medium"
+            android:layout_width="match_parent"
+            android:layout_marginStart="0dp"
+            android:text="@string/label_add"
+            android:gravity="center_vertical|start"
+            android:background="@drawable/ui_ripple"
+            android:textAppearance="@style/TextAppearance.AppCompat.Subhead"
+            app:drawableStartCompat="@drawable/ic_add"
+            android:drawablePadding="@dimen/padding_medium"
+            app:layout_constraintTop_toBottomOf="@+id/blacklist_recycler" />
+
+        <Button
+            android:id="@+id/blacklist_cancel"
+            style="@style/Widget.Button.Dialog"
+            android:layout_marginEnd="@dimen/padding_small"
+            android:layout_marginTop="@dimen/margin_medium"
+            android:text="@android:string/cancel"
+            app:layout_constraintEnd_toStartOf="@+id/blacklist_confirm"
+            app:layout_constraintTop_toBottomOf="@+id/blacklist_add" />
+
+        <Button
+            android:id="@+id/blacklist_confirm"
+            style="@style/Widget.Button.Dialog"
+            android:layout_marginEnd="@dimen/margin_medium"
+            android:text="@string/label_confirm"
+            app:layout_constraintBottom_toBottomOf="@+id/blacklist_cancel"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/blacklist_cancel" />
+
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</layout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_blacklist_entry.xml b/app/src/main/res/layout/item_blacklist_entry.xml
new file mode 100644
index 000000000..bc7d9ab0c
--- /dev/null
+++ b/app/src/main/res/layout/item_blacklist_entry.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <androidx.constraintlayout.widget.ConstraintLayout style="@style/ItemSurroundings"
+        android:clickable="false"
+        android:focusable="false">
+
+        <TextView
+            android:id="@+id/blacklist_title"
+            style="@style/ItemText.Primary"
+            android:layout_marginStart="0dp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            tools:text="/storage/emulated/0/directory" />
+
+        <ImageButton
+            android:id="@+id/blacklist_clear"
+            style="@style/Widget.Button.Unbounded"
+            android:layout_width="@dimen/size_clear"
+            android:layout_height="@dimen/size_clear"
+            android:src="@drawable/ic_clear"
+            android:contentDescription="@string/description_blacklist_delete"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+
+</layout>
\ No newline at end of file
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index a67aac4c1..d01a00028 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -86,8 +86,8 @@
     <string name="setting_behavior_keep_shuffle_desc">Lassen zufällig an, wenn ein neues Lied anspielen</string>
     <string name="setting_behavior_rewind_prev">Zurückspulen, bevor zurück springen</string>
     <string name="setting_behavior_rewind_prev_desc">Zurückspulen, bevor zum vorheriger Lied springen</string>
-    <string name="setting_behavior_save">Wiedergabezustand abspeichern</string>
-    <string name="setting_behavior_save_desc">Der aktuell Wiedergabezustand jetzt abspeichern</string>
+    <string name="setting_content_save">Wiedergabezustand abspeichern</string>
+    <string name="setting_content_save_desc">Der aktuell Wiedergabezustand jetzt abspeichern</string>
 
     <!-- Error Namespace | Error Labels -->
     <string name="error_no_music">Keine Musik gefunden</string>
@@ -102,7 +102,7 @@
     <string name="description_sort_button">Reihenfolge ändern</string>
     <string name="description_track_number">Titel %d</string>
 
-    <string name="description_play_pause">Abspielen/Pausieren</string>
+    <string name="description_play_pause">Abspielen oder Pausieren</string>
     <string name="description_skip_prev">Zu letzter Lied springen</string>
     <string name="description_skip_next">Zu nächster Lied springen</string>
     <string name="description_shuffle_on">Zufällig anschalten</string>
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index 44d21863d..ccaaf470c 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -4,6 +4,7 @@
     <dimen name="padding_microscopic">2dp</dimen>
     <dimen name="padding_tiny">4dp</dimen>
     <dimen name="padding_small">8dp</dimen>
+    <dimen name="padding_mid_small">12dp</dimen>
     <dimen name="padding_medium">16dp</dimen>
 
     <!-- Margin namespace | Dimens for margin attributes -->
@@ -17,11 +18,13 @@
 
     <!-- Height Namespace | Height for UI elements -->
     <dimen name="height_compact_progress">2dp</dimen>
+    <dimen name="height_dialog_button">40dp</dimen>
 
     <!-- Width Namespace | Width for UI elements -->
     <dimen name="width_track_number">32dp</dimen>
     <dimen name="width_thumb_view">50dp</dimen>
     <dimen name="width_play_stroke">1dp</dimen>
+    <dimen name="width_dialog_button_min">64dp</dimen>
 
     <!-- Size Namespace | Width & Heights for UI elements -->
     <dimen name="size_error_icon">48dp</dimen>
@@ -37,6 +40,7 @@
 
     <dimen name="size_play_pause">70dp</dimen>
     <dimen name="size_play_pause_compact">36dp</dimen>
+    <dimen name="size_clear">32dp</dimen>
 
     <dimen name="size_app_icon">60dp</dimen>
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 33bb1fc17..8f75e58f9 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -50,6 +50,10 @@
     <string name="label_licenses">Licenses</string>
     <string name="label_author">Developed by OxygenCobalt</string>
 
+    <string name="label_add">Add</string>
+    <string name="label_confirm">Confirm</string>
+    <string name="label_empty_blacklist">No excluded folders</string>
+
     <!-- Settings namespace | Settings-related labels -->
     <string name="setting_title">Settings</string>
 
@@ -89,14 +93,20 @@
     <string name="setting_behavior_keep_shuffle_desc">Keep shuffle on when playing a new song</string>
     <string name="setting_behavior_rewind_prev">Rewind before skipping back</string>
     <string name="setting_behavior_rewind_prev_desc">Rewind before skipping to the previous song</string>
-    <string name="setting_behavior_save">Save playback state</string>
-    <string name="setting_behavior_save_desc">Save the current playback state now</string>
+
+    <string name="setting_content">Content</string>
+    <string name="setting_content_blacklist">Excluded Folders</string>
+    <string name="setting_content_blacklist_desc">The content of excluded folders is hidden from your library</string>
+    <string name="setting_content_save">Save playback state</string>
+    <string name="setting_content_save_desc">Save the current playback state now</string>
 
     <!-- Error Namespace | Error Labels -->
     <string name="error_no_music">No music found</string>
     <string name="error_load_failed">Music loading failed</string>
     <string name="error_no_perms">Auxio needs permission to read your music library</string>
     <string name="error_no_browser">Could not open link</string>
+    <string name="error_no_dirs">No subfolders</string>
+    <string name="error_folder_would_brick_app">The root folder can\'t be excluded</string>
 
     <!-- Hint Namespace | EditText Hints -->
     <string name="hint_search_library">Search your library…</string>
@@ -105,7 +115,7 @@
     <string name="description_sort_button">Change Sort Order</string>
     <string name="description_track_number">Track %d</string>
 
-    <string name="description_play_pause">Play/Pause</string>
+    <string name="description_play_pause">Play or Pause</string>
     <string name="description_skip_next">Skip to next song</string>
     <string name="description_skip_prev">Skip to last song</string>
     <string name="description_shuffle_on">Turn shuffle on</string>
@@ -114,6 +124,7 @@
 
     <string name="description_clear_user_queue">Clear queue</string>
     <string name="description_clear_search">Clear search query</string>
+    <string name="description_blacklist_delete">Remove excluded directory</string>
 
     <string name="description_error">Error</string>
     <string name="description_auxio_icon">Auxio icon</string>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 26c740750..9f4638bc2 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -25,6 +25,7 @@
         <item name="md_corner_radius">0dp</item>
         <item name="md_color_button_text">@color/control_color</item>
         <item name="md_font_title">@font/inter_exbold</item>
+        <item name="md_ripple_color">@color/selection_color</item>
     </style>
 
     <!-- Toolbar theme -->
@@ -239,4 +240,14 @@
         <item name="android:scaleType">fitCenter</item>
         <item name="android:padding">@dimen/padding_medium</item>
     </style>
+
+    <!-- Style for dialog buttons -->
+    <style name="Widget.Button.Dialog" parent="Widget.AppCompat.Button">
+        <item name="android:layout_height">@dimen/height_dialog_button</item>
+        <item name="android:layout_width">wrap_content</item>
+        <item name="android:paddingStart">@dimen/padding_mid_small</item>
+        <item name="android:paddingEnd">@dimen/padding_mid_small</item>
+        <item name="android:minWidth">@dimen/width_dialog_button_min</item>
+        <item name="android:background">@drawable/ui_ripple</item>
+    </style>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/xml/prefs_main.xml b/app/src/main/res/xml/prefs_main.xml
index 5bc5b4a82..06f89a825 100644
--- a/app/src/main/res/xml/prefs_main.xml
+++ b/app/src/main/res/xml/prefs_main.xml
@@ -126,10 +126,22 @@
             app:key="KEY_PREV_REWIND"
             app:summary="@string/setting_behavior_rewind_prev_desc" />
 
+    </PreferenceCategory>
+
+    <PreferenceCategory
+        android:layout="@layout/item_header"
+        android:title="@string/setting_content">
+
         <Preference
-            android:title="@string/setting_behavior_save"
+            android:title="@string/setting_content_save"
             app:iconSpaceReserved="false"
             app:key="KEY_SAVE_STATE"
-            app:summary="@string/setting_behavior_save_desc" />
+            app:summary="@string/setting_content_save_desc" />
+
+        <Preference
+            android:title="@string/setting_content_blacklist"
+            app:iconSpaceReserved="false"
+            app:key="KEY_BLACKLIST"
+            app:summary="@string/setting_content_blacklist_desc" />
     </PreferenceCategory>
 </PreferenceScreen>
\ No newline at end of file