Using full screen Activity

Question

I am making a simple game and so far I've been using the Blank Activity. Now I want it to cover the entire screen, Will I need to Recode the entire thing using a FullScreen Activity? I've tried looking for something online but every thing i came across had adding this bit:​

requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 
                     WindowManager.LayoutParams.FLAG_FULLSCREEN);

Which causes the app to crash as soon as it is launched on a device. SO please if anyone can show me my error.

Here is a link to the logcat output as well as the game code

Logcat and game code

Answer 1

Try this to set activity to fullscreen:

getWindow().getDecorView().setSystemUiVisibility(
  View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN
| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);

You can put this code in onCreate() method