Use Volume Key While Screen Locked

This code doesn't work will screen locked. what should I do if I want volume key work while screen locked? My code is : @Override public boolean dispatchKeyEvent(KeyEvent event) {

Solution 1:

you can register BroadcastReceiver with action "android.media.VOLUME_CHANGED_ACTION" :

android.media.VOLUME_CHANGED_ACTION

Other way of doing is: volume key on Android .

Solution 2:

Do this in a service:

publicclassMyServiceextendsService {

@OverridepublicvoidonCreate() {
    super.onCreate();
    finalBroadcastReceivervReceiver=newBroadcastReceiver() {
        @OverridepublicvoidonReceive(Context context, Intent intent) {
             //your code here
        }
    };
    registerReceiver(vReceiver, newIntentFilter("android.media.VOLUME_CHANGED_ACTION"));
}

}

Then register BroadcastReceiver with action Intent.ACTION_SCREEN_OFF to play a silent sound continuously when screen is off and action Intent.ACTION_SCREEN_ON to stop music when screen on. Volume buttons are only active when there's music playing.