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Ich habe komplette Music Player geschrieben, um Musik aus dem Internet zu streamen, aber ich weiß nicht, wie Media Player-Steuerelemente in Notification und wenn der Bildschirm gesperrt ist.Media Player-Steuerelemente in Notification
I this tutorial bin nach Kontrollen in der Benachrichtigungsleiste zu zeigen, aber immer noch nicht, wie gleiche Funktionalität in meinem Programm zu verwenden, habe ich erforderliche Klassen importiert wie: NotificationService.java und Constants.java.
Dies ist, was ich in Notification Bar bin immer:
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Ich bin verwirrt. Warum bin ich nicht Titel des Songs immer ich spiele, warum Pause zurück und nächsten Schaltflächen nicht etc arbeiten ...
NotificationService.java:
public class NotificationService extends Service {
Notification status;
private final String LOG_TAG = "NotificationService";
@Override
public void onDestroy() {
super.onDestroy();
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (intent.getAction().equals(Constants.ACTION.STARTFOREGROUND_ACTION)) {
showNotification();
Toast.makeText(this, "Service Started", Toast.LENGTH_SHORT).show();
} else if (intent.getAction().equals(Constants.ACTION.PREV_ACTION)) {
Toast.makeText(this, "Clicked Previous", Toast.LENGTH_SHORT).show();
Log.i(LOG_TAG, "Clicked Previous");
} else if (intent.getAction().equals(Constants.ACTION.PLAY_ACTION)) {
Toast.makeText(this, "Clicked Play", Toast.LENGTH_SHORT).show();
Log.i(LOG_TAG, "Clicked Play");
} else if (intent.getAction().equals(Constants.ACTION.NEXT_ACTION)) {
Toast.makeText(this, "Clicked Next", Toast.LENGTH_SHORT).show();
Log.i(LOG_TAG, "Clicked Next");
} else if (intent.getAction().equals(Constants.ACTION.STOPFOREGROUND_ACTION)) {
Log.i(LOG_TAG, "Received Stop Foreground Intent");
Toast.makeText(this, "Service Stoped", Toast.LENGTH_SHORT).show();
stopForeground(true);
stopSelf();
}
return START_STICKY;
}
private void showNotification() {
// Using RemoteViews to bind custom layouts into Notification
RemoteViews views = new RemoteViews(getPackageName(), R.layout.status_bar);
RemoteViews bigViews = new RemoteViews(getPackageName(), R.layout.status_bar_expanded);
// showing default album image
views.setViewVisibility(R.id.status_bar_icon, View.VISIBLE);
views.setViewVisibility(R.id.status_bar_album_art, View.GONE);
bigViews.setImageViewBitmap(R.id.status_bar_album_art,
Constants.getDefaultAlbumArt(this));
Intent notificationIntent = new Intent(this, MusicPlayerActivity.class);
notificationIntent.setAction(Constants.ACTION.MAIN_ACTION);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
Intent previousIntent = new Intent(this, NotificationService.class);
previousIntent.setAction(Constants.ACTION.PREV_ACTION);
PendingIntent ppreviousIntent = PendingIntent.getService(this, 0, previousIntent, 0);
Intent playIntent = new Intent(this, NotificationService.class);
playIntent.setAction(Constants.ACTION.PLAY_ACTION);
PendingIntent pplayIntent = PendingIntent.getService(this, 0, playIntent, 0);
Intent nextIntent = new Intent(this, NotificationService.class);
nextIntent.setAction(Constants.ACTION.NEXT_ACTION);
PendingIntent pnextIntent = PendingIntent.getService(this, 0, nextIntent, 0);
Intent closeIntent = new Intent(this, NotificationService.class);
closeIntent.setAction(Constants.ACTION.STOPFOREGROUND_ACTION);
PendingIntent pcloseIntent = PendingIntent.getService(this, 0, closeIntent, 0);
views.setOnClickPendingIntent(R.id.status_bar_play, pplayIntent);
bigViews.setOnClickPendingIntent(R.id.status_bar_play, pplayIntent);
views.setOnClickPendingIntent(R.id.status_bar_next, pnextIntent);
bigViews.setOnClickPendingIntent(R.id.status_bar_next, pnextIntent);
views.setOnClickPendingIntent(R.id.status_bar_prev, ppreviousIntent);
bigViews.setOnClickPendingIntent(R.id.status_bar_prev, ppreviousIntent);
views.setOnClickPendingIntent(R.id.status_bar_collapse, pcloseIntent);
bigViews.setOnClickPendingIntent(R.id.status_bar_collapse, pcloseIntent);
views.setImageViewResource(R.id.status_bar_play,
R.drawable.apollo_holo_dark_pause);
bigViews.setImageViewResource(R.id.status_bar_play,
R.drawable.apollo_holo_dark_pause);
views.setTextViewText(R.id.status_bar_track_name, "Song Title");
bigViews.setTextViewText(R.id.status_bar_track_name, "Song Title");
views.setTextViewText(R.id.status_bar_artist_name, "Artist Name");
bigViews.setTextViewText(R.id.status_bar_artist_name, "Artist Name");
bigViews.setTextViewText(R.id.status_bar_album_name, "Album Name");
status = new Notification.Builder(this).build();
status.contentView = views;
status.bigContentView = bigViews;
status.flags = Notification.FLAG_ONGOING_EVENT;
status.icon = R.drawable.ic_launcher;
status.contentIntent = pendingIntent;
startForeground(Constants.NOTIFICATION_ID.FOREGROUND_SERVICE, status);
}
}
Constants.java:
public class Constants {
public interface ACTION {
public static String MAIN_ACTION = "com.marothiatechs.customnotification.action.main";
public static String INIT_ACTION = "com.marothiatechs.customnotification.action.init";
public static String PREV_ACTION = "com.marothiatechs.customnotification.action.prev";
public static String PLAY_ACTION = "com.marothiatechs.customnotification.action.play";
public static String NEXT_ACTION = "com.marothiatechs.customnotification.action.next";
public static String STARTFOREGROUND_ACTION = "com.marothiatechs.customnotification.action.startforeground";
public static String STOPFOREGROUND_ACTION = "com.marothiatechs.customnotification.action.stopforeground";
}
public interface NOTIFICATION_ID {
public static int FOREGROUND_SERVICE = 101;
}
public static Bitmap getDefaultAlbumArt(Context context) {
Bitmap bm = null;
BitmapFactory.Options options = new BitmapFactory.Options();
try {
bm = BitmapFactory.decodeResource(context.getResources(),
R.drawable.default_album_art, options);
} catch (Error ee) {
} catch (Exception e) {
}
return bm;
}
}
MusicPlayerActivity.java:
public class MusicPlayerActivity extends Activity {
// ....
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_music_player);
mediaPlayer = new MediaPlayer();
audiosArrayList = new ArrayList<MusicPlayer>();
listview = (ListView) findViewById(R.id.list_slidermenu);
// ...
btnPlay.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
try {
play();
} catch (Exception exception){
Log.v("exception:play", exception.toString());
}
}
});
btnPause.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
try {
pause();
} catch (Exception exception){
Log.v("exception:pause", exception.toString());
}
}
});
btnNext.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
try {
next();
} catch (Exception exception){
Log.v("exception:next", exception.toString());
}
}
});
btnPrev.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
try {
prev();
} catch (Exception exception){
Log.v("exception:pause", exception.toString());
}
}
});
new JSONAsyncTask().execute("http://myurl/json/musics.json");
listview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
if (mediaPlayer != null && mediaPlayer.isPlaying())
try {
mediaPlayer.stop();
} catch (Exception e) {
}
play();
}
});
......
}
// ...
public void startService(View v) {
Intent serviceIntent = new Intent(MusicPlayerActivity.this, NotificationService.class);
serviceIntent.setAction(Constants.ACTION.STARTFOREGROUND_ACTION);
startService(serviceIntent);
}
Überprüfung dieser Code https://github.com/googlesamples/android-UniversalMusicPlayer –