main: band-aid split screen mode layouts

Split screen layouts in android are completely borked. You can
resize Auxio down to the point where the UI is completely
unusable, and there is NO WAY TO SET A MINIMUM HEIGHT. This is
also not to mention that smallestScreenWidthDp is completely
busted too and still uses the size of the whole screen! Just
band-aid the first issue so that when the layout becomes so
small as to result in a messed up UI, just show a splash that
says that the app can't work at the specific window size.

app/src/main/java/org/oxycblt/auxio/MainActivity.kt

@@ -28,6 +28,7 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.core.view.updatePadding
 import androidx.databinding.DataBindingUtil
+import androidx.viewbinding.ViewBinding
 import org.oxycblt.auxio.accent.Accent
 import org.oxycblt.auxio.databinding.ActivityMainBinding
 import org.oxycblt.auxio.playback.PlaybackViewModel
@@ -114,7 +115,7 @@ class MainActivity : AppCompatActivity() {
         }
     }
 
-    private fun applyEdgeToEdgeWindow(binding: ActivityMainBinding) {
+    private fun applyEdgeToEdgeWindow(binding: ViewBinding) {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
             // Do modern edge to edge, which happens to be around twice the size of the
             // old way of doing things. Thanks android, very cool!
@@ -147,7 +148,7 @@ class MainActivity : AppCompatActivity() {
         }
     }
 
-    private fun WindowInsets.applyLeftRightInsets(binding: ActivityMainBinding): WindowInsets {
+    private fun WindowInsets.applyLeftRightInsets(binding: ViewBinding): WindowInsets {
         val bars = systemBarsCompat
 
         binding.root.updatePadding(

app/src/main/java/org/oxycblt/auxio/MainFragment.kt

@@ -19,6 +19,7 @@
 package org.oxycblt.auxio
 
 import android.Manifest
+import android.os.Build
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -73,6 +74,22 @@ class MainFragment : Fragment() {
             }
         )
 
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            // Auxio's layout completely breaks down when it's window is resized too small,
+            // but for some insane reason google decided to cripple the window APIs one could use
+            // to limit it's size. So, we just have our own special layout that is shown whenever
+            // the screen is too small because nothing works the way it should and everything
+            // is broken.
+
+            if (requireActivity().isInMultiWindowMode) {
+                val config = resources.configuration
+
+                if (config.screenHeightDp < 250 || config.screenWidthDp < 250) {
+                    binding.layoutTooSmall.visibility = View.VISIBLE
+                }
+            }
+        }
+
         // --- VIEWMODEL SETUP ---
 
         // We have to control the bar view from here since using a Fragment in PlaybackLayout

app/src/main/java/org/oxycblt/auxio/playback/PlaybackLayout.kt

@@ -164,9 +164,15 @@ class PlaybackLayout @JvmOverloads constructor(
             // Make sure we add our fragment to this view. This is actually a replace operation
             // since we don't want to stack fragments but we can't ensure that this view doesn't
             // already have a fragment attached.
-            (context as AppCompatActivity).supportFragmentManager.beginTransaction()
+            try {
-                .replace(R.id.playback_panel, playbackFragment)
+                (context as AppCompatActivity).supportFragmentManager.beginTransaction()
-                .commit()
+                    .replace(R.id.playback_panel, playbackFragment)
+                    .commit()
+            } catch (e: Exception) {
+                // Band-aid to stop the app crashing if we have to swap out the content view
+                // without warning (which we have to do sometimes because android is the worst
+                // thing ever
+            }
         }
     }
 

app/src/main/res/layout-land/fragment_playback.xml

@@ -36,8 +36,9 @@
 
         <ImageView
             android:id="@+id/playback_cover"
-            style="@style/Widget.Auxio.Image.Large"
+            style="@style/Widget.Auxio.Image.Full"
             android:layout_marginStart="@dimen/spacing_mid_large"
+            android:layout_marginTop="@dimen/spacing_mid_large"
             android:contentDescription="@{@string/desc_album_cover(song.name)}"
             app:albumArt="@{song}"
             app:layout_constraintBottom_toTopOf="@+id/playback_seek_bar"
@@ -156,6 +157,7 @@
             app:layout_constraintEnd_toEndOf="@+id/playback_seek_bar"
             app:layout_constraintStart_toStartOf="@+id/playback_seek_bar"
             app:layout_constraintTop_toBottomOf="@+id/playback_seek_bar"
+            android:layout_marginBottom="@dimen/spacing_mid_large"
             tools:src="@drawable/ic_play" />
 
         <ImageButton

app/src/main/res/layout-sw600dp-land/fragment_playback.xml

@@ -104,8 +104,8 @@
             android:id="@+id/playback_seek_bar"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
-            android:layout_marginStart="-8dp"
+            android:layout_marginStart="-16dp"
-            android:layout_marginEnd="-8dp"
+            android:layout_marginEnd="-16dp"
             app:layout_constraintBottom_toTopOf="@+id/playback_play_pause"
             app:layout_constraintHorizontal_bias="0.5"
             app:layout_constraintStart_toStartOf="@+id/playback_song_container"

app/src/main/res/layout/fragment_main.xml

@@ -4,18 +4,52 @@
     xmlns:tools="http://schemas.android.com/tools"
     tools:context=".MainFragment">
 
-    <org.oxycblt.auxio.playback.PlaybackLayout
+    <FrameLayout
-        android:id="@+id/playback_layout"
         android:layout_width="match_parent"
         android:layout_height="match_parent">
 
-        <androidx.fragment.app.FragmentContainerView
+        <org.oxycblt.auxio.playback.PlaybackLayout
-            android:id="@+id/explore_nav_host"
+            android:id="@+id/playback_layout"
-            android:name="androidx.navigation.fragment.NavHostFragment"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <androidx.fragment.app.FragmentContainerView
+                android:id="@+id/explore_nav_host"
+                android:name="androidx.navigation.fragment.NavHostFragment"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                app:navGraph="@navigation/nav_explore"
+                tools:layout="@layout/fragment_home" />
+
+        </org.oxycblt.auxio.playback.PlaybackLayout>
+
+        <FrameLayout
+            android:id="@+id/layout_too_small"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            app:navGraph="@navigation/nav_explore"
+            android:background="?attr/colorSurface"
-            tools:layout="@layout/fragment_home" />
+            android:visibility="gone">
+
+            <ImageView
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:alpha="0.275"
+                android:contentDescription="@string/desc_auxio_icon"
+                android:scaleType="centerCrop"
+                android:src="@drawable/ic_auxio" />
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center"
+                android:gravity="center"
+                android:padding="@dimen/spacing_medium"
+                android:text="@string/err_too_small"
+                android:textAppearance="@style/TextAppearance.Auxio.TitleMidLarge"
+                android:textColor="?android:attr/textColorPrimary"
+                android:textStyle="bold" />
+
+        </FrameLayout>
+    </FrameLayout>
 
-    </org.oxycblt.auxio.playback.PlaybackLayout>
 </layout>

app/src/main/res/values/strings.xml

@@ -107,6 +107,7 @@
     <string name="err_no_perms">Auxio needs permission to read your music library</string>
     <string name="err_no_app">No app can open this link</string>
     <string name="err_bad_dir">This directory is not supported</string>
+    <string name="err_too_small">Auxio does not support this screen size</string>
 
     <!-- Hint Namespace | EditText Hints -->
     <string name="hint_search_library">Search your library…</string>