How to remove the navigation bar in an android app?

Question

Android

How to remove the navigation bar in an android app?
In the application, you need to remove the navigation bar so that it would not be visible. The similarity of the fullscreen mode or it.
Thanks in advance

Answer 1

I ended up with this option:

if (Build.VERSION.SDK_INT < 19) {
  View v = this.getWindow().getDecorView();
  v.setSystemUiVisibility(View.GONE);
} else {
  View decorView = getWindow().getDecorView();
  int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
      | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
  decorView.setSystemUiVisibility(uiOptions);
}

Answer 2

Actionbar?
https://developer.android.com/training/system-ui/s...

Answer 3

RTFM developer.android.com/guide/topics/ui/actionbar.html