nazmulidris

private void startUpdatingCallbackWithPosition() {
   if (mExecutor == null) {
       mExecutor = Executors.newSingleThreadScheduledExecutor();
   }
   if (mSeekBarPositionUpdateTask == null) {
       mSeekBarPositionUpdateTask = new Runnable() {
           @Override
           public void run() {
               updateProgressCallbackTask();
           }

nazmulidris

@Override
public void initializeProgressCallback() {
   final int duration = mMediaPlayer.getDuration();
   if (mPlaybackProgressCallback != null) {
       mPlaybackProgressCallback.setPlaybackDuration(duration);
       mPlaybackProgressCallback.setPlaybackPosition(0);
   }
}

nazmulidris

public interface PlaybackInfoListener {

   @IntDef({State.INVALID, State.PLAYING, State.PAUSED, State.RESET, State.COMPLETED})
   @Retention(RetentionPolicy.SOURCE)
   @interface State {

       int INVALID = -1;
       int PLAYING = 0;
       int PAUSED = 1;
       int RESET = 2;

nazmulidris

@Override
protected void onStart() {
   super.onStart();
   mPlayerAdapter.loadMedia(MEDIA_RES_ID);
   Log.d(TAG, "onStart: create MediaPlayer");
}

@Override
protected void onStop() {
   super.onStop();

nazmulidris

<application
       android:launchMode="singleTop"
       android:theme="@style/AppTheme">
   <activity android:name="com.example.android.mediaplayersample.MainActivity"
             android:configChanges="orientation">
       <intent-filter>
           <action android:name="android.intent.action.MAIN"/>
           <category android:name="android.intent.category.LAUNCHER"/>
       </intent-filter>
   </activity>

nazmulidris

private void initializeMediaPlayer() {
   if (mMediaPlayer == null) {
       mMediaPlayer = new MediaPlayer();
       mMediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
           @Override
           public void onCompletion(MediaPlayer mediaPlayer) {
               stopUpdatingCallbackWithPosition(true);
               logToUI("MediaPlayer playback completed");
               if (mPlaybackInfoListener != null) {
                   mPlaybackInfoListener.onStateChanged(PlaybackInfoListener.State.COMPLETED);

nazmulidris

mPauseButton.setOnClickListener(
       new View.OnClickListener() {
           @Override
           public void onClick(View view) {
               mPlayerAdapter.pause();
           }
       });
mPlayButton.setOnClickListener(
       new View.OnClickListener() {
           @Override

nazmulidris

if (isPlaying && !mStarted) {
   Intent intent = new Intent(mContext, MusicService.class);
   ContextCompat.startForegroundService(mContext, intent);
   mContext.startForeground(NOTIFICATION_ID, notification);
   mStarted = true;
}

nazmulidris

import android.support.v4.app.NotificationCompat;
import android.support.v4.content.ContextCompat;
import android.support.v4.media.app.NotificationCompat.MediaStyle;

//...

// You only need to create the channel on API 26+ devices
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
  createChannel();
}

nazmulidris

    private static final String CHANNEL_ID = "media_playback_channel";

    @RequiresApi(Build.VERSION_CODES.O)
    private void createChannel() {
        NotificationManager
                mNotificationManager =
                (NotificationManager) mContext
                        .getSystemService(Context.NOTIFICATION_SERVICE);
        // The id of the channel.
        String id = CHANNEL_ID;