Android Mediaplayer adjust volume

问题

Anyone know how can I increase/decrease the volume of the sound from mediaplayer by clicking on the volume button at the side of the phone? And how can I mute the sound if the phone was set to silent mode?

Code I'm using:

mp = MediaPlayer.create(this, R.raw.sound);
mp.start();

回答1:

I think this is what you might be interested in:

1, increase/decrease the volume of the sound: Link Here

Basically Override the onKeyDown and then call mp.setVolumn(float leftVolume,float rightVolume);

2, mute the sound if the phone was set to silent mode

AudioManager am = (AudioManager)getSystemService(Context.AUDIO_SERVICE);

switch (am.getRingerMode()) {
    case AudioManager.RINGER_MODE_SILENT:
        mp.setVolume(0,0);
        break;
｝

回答2:

Another way to do it is in your mediaPlayer to set

mp.setAudioStreamType(AudioManager.STREAM_RING);

来源：https://stackoverflow.com/questions/11661943/android-mediaplayer-adjust-volume