Is there a broadcast action for volume changes?

user_451420 0
Viewed 48467

I'm programming a small widget that needs to be updated whenever the user changes the ringer volume or the vibrate settings.

Capturing android.media.VIBRATE_SETTING_CHANGED works just fine for the vibrate settings, but I haven't found any way of getting notified when the ringer volume changes and although I could try to capture when the user presses the volume up/volume down physical keys, there are many other options for changing the volume without using these keys.

Do you know if there's any broadcast action defined for this or any way to create one or to solve the problem without it?

broadcast volume android-intent android
9 Answers
  private const val EXTRA_VOLUME_STREAM_TYPE = "android.media.EXTRA_VOLUME_STREAM_TYPE"
  private const val VOLUME_CHANGED_ACTION = "android.media.VOLUME_CHANGED_ACTION"

    val filter = IntentFilter(VOLUME_CHANGED_ACTION)
    filter.addAction(RINGER_MODE_CHANGED_ACTION)

      val receiver = object : BroadcastReceiver() {
            override fun onReceive(context1: Context, intent: Intent) {

                val stream = intent.getIntExtra(EXTRA_VOLUME_STREAM_TYPE, UNKNOWN)
                val mode = intent.getIntExtra(EXTRA_RINGER_MODE, UNKNOWN)
                val volumeLevel = audioManager.getStreamVolume(stream)
            }
        }
user_76511780

100% working way in all cases

  public class SettingsContentObserver extends ContentObserver {

        SettingsContentObserver(Handler handler) {
            super(handler);
        }

        @Override
        public boolean deliverSelfNotifications() {
            return super.deliverSelfNotifications();
        }

        @Override
        public void onChange(boolean selfChange) {
            super.onChange(selfChange);
            volumeDialogContract.updateMediaVolume(getMediaVolume());


    }

    int getMediaVolume() {
        return audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
    }



    void unRegisterVolumeChangeListener() {
        volumeDialogContract.getAppContext().getApplicationContext().getContentResolver().
                unregisterContentObserver(settingsContentObserver);
    }

    void registerVolumeChangeListener() {
        settingsContentObserver = new VolumeDialogPresenter.SettingsContentObserver(new Handler());
        volumeDialogContract.getAppContext().getApplicationContext().getContentResolver().registerContentObserver(
                android.provider.Settings.System.CONTENT_URI, true,
                settingsContentObserver);
    }
user_13388500
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