Question

i would like to use following code to turn off Button back that i got from https://stackoverflow.com/a/4937448/1218762

final Window win = getWindow();
final WindowManager.LayoutParams winParams = win.getAttributes();
winParams.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;

//set screen brightness to the lowest possible
winParams.screenBrightness = 0.01f;

if (Build.VERSION.SDK_INT < 8) {
  // hack for pre-froyo to set buttonBrightness off
  try {
      Field buttonBrightness = winParams.getClass().getField(
            "buttonBrightness");
      buttonBrightness.set(winParams, 0);
     }   catch (Exception e) {
       e.printStackTrace();
     }
} else {
 winParams.buttonBrightness = 0;
 }
win.setAttributes(winParams);

Reference : visit Night Mode where you you can turn off Button Lights in Service , i know Services don’t have Window but how is it possible ?

Thank You.

Answer 1

One of the simple way I would suggest you is to broadcast some kind of turning-off message from your Service to your Activity and perform the required actions inside onReceive method of BroadcastReceiver.