How to make window full screen in android

To make window full screen we have to define one line code in onCreate method,

@Overrideprotected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);

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

WindowManager.LayoutParams.FLAG_FULLSCREEN);

  setContentView(R.layout.activity_main);

Done , above one line code in bold font we have to declare for window full screen.