I have created an app where on button click music plays and on back press, music stops. What if the user's phone is in silent mode or muted? How can I automatically turn on user's speaker while playing these music files programmatically or how can I give an option to the user to unmute or keep it in mute???
You can use the AudioManager to unmute the phone:
Context context = getActivity(); AudioManager audioManager = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE); int maxVolume = audioManager.getStreamMaxVolume(AudioManager.STREAM_RING); audioManager.setRingerMode(AudioManager.RINGER_MODE_NORMAL); audioManager.setStreamVolume(AudioManager.STREAM_RING, maxVolume, AudioManager.FLAG_SHOW_UI + AudioManager.FLAG_PLAY_SOUND);