CODEWITHSUNDEEP
androidaudioandroid-audiomanager
carefacerz
carefacerz

Reputation: 1297

Change Media volume in Android?

Can I change the media volume? and how? I used this so far:

setVolumeControlStream(AudioManager.STREAM_MUSIC);

But have a seekbar and want to change the media volume, not ring volume.

So can someone show me how to just change the media volume at onCreate() and I fix the seekbar later.

Upvotes: 56

Views: 78052

Answers (5)

Anthony Graglia
Anthony Graglia

Reputation: 5435

private AudioManager audio;

Inside onCreate:

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

Override onKeyDown:

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    switch (keyCode) {
    case KeyEvent.KEYCODE_VOLUME_UP:
        audio.adjustStreamVolume(AudioManager.STREAM_MUSIC,
                AudioManager.ADJUST_RAISE, AudioManager.FLAG_SHOW_UI);
        return true;
    case KeyEvent.KEYCODE_VOLUME_DOWN:
        audio.adjustStreamVolume(AudioManager.STREAM_MUSIC,
                AudioManager.ADJUST_LOWER, AudioManager.FLAG_SHOW_UI);
        return true;
    default:
        // return false;
        // Update based on @Rene comment below:
        return super.onKeyDown(keyCode, event);
    }
}

Upvotes: 40

Zar E Ahmer
Zar E Ahmer

Reputation: 34390

You can use the following code to handle Volume using a SeekBar:

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

SeekBar sbVolumeBooster = (SeekBar) findViewById(R.id.sbVolumeBooster);
sbVolumeBooster.setMax(audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC)); 
sbVolumeBooster.setProgress(audioManager.getStreamVolume(AudioManager.STREAM_MUSIC));  

sbVolumeBooster.setOnSeekBarChangeListener(new OnSeekBarChangeListener() 
{
    @Override
    public void onStopTrackingTouch(SeekBar arg0) 
    {
    }

    @Override
    public void onStartTrackingTouch(SeekBar arg0) 
    {
    }

    @Override
    public void onProgressChanged(SeekBar arg0, int progress, boolean arg2) 
    {
        audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,
                progress, 0);  // 0 can also be changed to AudioManager.FLAG_PLAY_SOUND
    }
});

Upvotes: 12

Yoni
Yoni

Reputation: 116

Giving a 0 - in the flags avoids getting a visual and audio indicator . That's good when you implement your own audio bar and indicator and you don't want android to add anything.

Upvotes: 6

Octavian Helm
Octavian Helm

Reputation: 39603

The right method to use would be setStreamVolume on your AudioManager. It could looks like this

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

audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,
                             [int value],
                             [if desired a flag]);

An example use of the flag is to get the beep when setting the volume so the user can hear the outcome. The flag for that would be AudioManager.FLAG_PLAY_SOUND.

You could use AudioManager.FLAG_SHOW_UI if you don't want to play a sound but display a toast with the current value. The use has to get a feedback tho. Doesn't matter if it is audible or visual.

To get the maximal valid value for the given stream you just call getStreamMaxVolume() on the AudioManager and get an integer back which represents ... well the maximal valid value for the volume.

Upvotes: 93

Computerish
Computerish

Reputation: 9601

Use adjustStreamVolume(AudioManager.STREAM_MUSIC, AudioManager.ADJUST_RAISE, flags);

http://developer.android.com/reference/android/media/AudioManager.html#adjustStreamVolume(int, int, int)

Upvotes: 1

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