which is better add flag or set flag regard full screen and screen on

Question

I wonder which is better in performance and behavior between the following ways in achieving:

1. Full Screen.

2. Screen On.

or both is the same

First:

getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 
            WindowManager.LayoutParams.FLAG_FULLSCREEN); 

OR

getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN |
WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

MAYBE this is easy question but I'm still learning android development,

Any help will be appreciated,

Thanks.

Answer 1

I don't think both scenarios affect performance a lot, but in modern developing environment we prefer simplicity of coding which directly seen in

 getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN |
      WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

so definitely I vote for that

Answer 2

Try this

    getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);  
    getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

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