How to set activity to fullscreen mode in Android?

Question

How to set full screen mode for activity in Android? I am using the following code to set full screen but it generates an error:

Exception:

android.util.AndroidRuntimeException: 
    requestFeature() must be called before adding content.         

Code:

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

Answer 1

please check the code

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

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

    setContentView(R.layout.main);
}

and note it is set before setting the content view