add example exoplayer

Author: tuanhacitigo

example/src/main/java/com/tuanhav95/example/fragment/ExoPlayerTopFragment.kt

@@ -8,15 +8,17 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import com.google.android.exoplayer2.ExoPlayerFactory
+import com.google.android.exoplayer2.Player
 import com.google.android.exoplayer2.SimpleExoPlayer
 import com.google.android.exoplayer2.source.ProgressiveMediaSource
+import com.google.android.exoplayer2.ui.AspectRatioFrameLayout
 import com.google.android.exoplayer2.upstream.DataSource
 import com.google.android.exoplayer2.upstream.DefaultDataSourceFactory
 import com.google.android.exoplayer2.util.Util
 import com.tuanhav95.example.R
 import kotlinx.android.synthetic.main.fragment_top_exo_player.*
 
-class ExoPlayerTopFragment : Fragment() {
+class ExoPlayerTopFragment : Fragment(), Player.EventListener {
 
     companion object {
         const val STREAM_URL = "http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4"
@@ -38,17 +40,28 @@ class ExoPlayerTopFragment : Fragment() {
         mediaDataSourceFactory = DefaultDataSourceFactory(context, Util.getUserAgent(context, "mediaPlayerSample"))
 
         val mediaSource = ProgressiveMediaSource.Factory(mediaDataSourceFactory).createMediaSource(Uri.parse(STREAM_URL))
-
+        simpleExoPlayer.addListener(this)
         simpleExoPlayer.prepare(mediaSource, false, false)
         simpleExoPlayer.playWhenReady = true
 
         playerView.setShutterBackgroundColor(Color.TRANSPARENT)
         playerView.player = simpleExoPlayer
         playerView.requestFocus()
+
+        aspectRatioFrameLayout.resizeMode = AspectRatioFrameLayout.RESIZE_MODE_FIXED_WIDTH
+        aspectRatioFrameLayout.setAspectRatio(16f / 9)
+    }
+
+    override fun onPlayerStateChanged(playWhenReady: Boolean, playbackState: Int) {
+        super.onPlayerStateChanged(playWhenReady, playbackState)
+        if (playbackState == Player.STATE_ENDED) {
+            simpleExoPlayer.playWhenReady = true
+        }
     }
 
     override fun onStop() {
         super.onStop()
+        simpleExoPlayer.removeListener(this)
         simpleExoPlayer.release()
     }
 

example/src/main/res/layout/fragment_top_exo_player.xml

@@ -1,15 +1,21 @@
 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/root"
-    android:focusable="true"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:background="#000000"
+    android:focusable="true"
     android:keepScreenOn="true">
 
-    <com.google.android.exoplayer2.ui.PlayerView
-        android:id="@+id/playerView"
-        android:focusable="true"
+    <com.google.android.exoplayer2.ui.AspectRatioFrameLayout
+        android:id="@+id/aspectRatioFrameLayout"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"/>
+        android:layout_height="match_parent">
 
+        <com.google.android.exoplayer2.ui.PlayerView
+            android:id="@+id/playerView"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:focusable="true" />
+    </com.google.android.exoplayer2.ui.AspectRatioFrameLayout>
 </FrameLayout>