I make a timer button to set the time to play the music clip. I create the Alarm Manager to set the time,
AlarmMAnager alarmMgr = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(context, AlarmReceiver.class);
alarmIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
Set 10sec
alarmMgr.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
SystemClock.elapsedRealtime() +
10 * 1000, alarmIntent);
AlarmReceiver.java
public class AlarmReceiver extends BroadcastReceiver {
private CharSequence msg = "Notofication";
MediaPlayer mp;
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
@Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "I'm running", Toast.LENGTH_SHORT).show();
mp = MediaPlayer.create(context, R.raw.music);
mp.start();
Intent dismissIntent = new Intent(context,DismissBroadcast.class);
PendingIntent piDismiss = PendingIntent.getBroadcast(context, 100, dismissIntent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder builder =
(NotificationCompat.Builder) new NotificationCompat.Builder(context)
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle("Test")
.setAutoCancel(true)
.setContentText("test")
.setPriority(Notification.PRIORITY_MAX)
.setDefaults(Notification.DEFAULT_ALL)
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(msg))
.addAction(R.drawable.ic_cancel_white_36dp,
"Dismiss", piDismiss);
NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
manager.notify(0, builder.build());
}
public MediaPlayer cancelMusic(){
return mp;
}
}
DismissBroadcast.java
public class DismissBroadcast extends BroadcastReceiver {
AlarmReceiver receive;
@Override
public void onReceive(Context context, Intent intent) {
receive.cancelMusic();
receive.mp.stop();
try {
receive.mp.prepare();
} catch (IOException e) {
e.printStackTrace();
}
receive.mp.seekTo(0);
}
}
When I click the dismiss button
from notification
bar, the app will crash. Please give me some ideas how to start the media player from AlarmReceiver.java
and stop it from DismissBroadcast.java
.
This is just an idea, for more code you should enhance yourself.
1) Create a singleton class that contains all control music logic:
public class MusicControl {
private static MusicControl sInstance;
private Context mContext;
private MediaPlayer mMediaPlayer;
public MusicControl(Context context) {
mContext = context;
}
public static MusicControl getInstance(Context context) {
if (sInstance == null) {
sInstance = new MusicControl(context);
}
return sInstance;
}
public void playMusic() {
mMediaPlayer = MediaPlayer.create(context, R.raw.music);
mMediaPlayer.start();
}
public void stopMusic() {
if(mMediaPlayer != null) {
mMediaPlayer.stop();
mMediaPlayer.seekTo(0);
}
}
}
2) AlarmReceiver.java
public class AlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
MusicControl.getInstance(context).playMusic();
// do your code here...
}
}
3) DismissBroadcast.java
public class DismissBroadcast extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
MusicControl.getInstance(context).stopMusic();
// do your code here...
}
}