Possible Duplicate:
How to lock screen, android
I am trying to lock the phones screen in my code but its not working. I've spent hours going over it and trying new ways, but nothing works. I am trying to lock the screen in a service, but first i am just trying it out in an activity.
Here's my activity:
PowerManager manager;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
manager = (PowerManager) getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wl = manager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "Your Tag");
wl.acquire();
}
}
This just doesn't do anything at all.
Note: I do have the android.permission.WAKE_LOCK permission
I've tried this method underneath also but it just does nothing, no force close or anything.
manager = (PowerManager) getSystemService(Context.POWER_SERVICE);
manager.goToSleep(1000); // go to sleep in 1 second
I have tried this method below and it worked (in an activity):
WindowManager.LayoutParams params = getWindow().getAttributes();
params.screenBrightness = 0;
getWindow().setAttributes(params);
However this method does not work in a service, so i need to find a different way?, however i just have had no luck.
Any help? would be great, thanks, jack
