Hidden Navigation Bar still occupies space

Question

I'm using immersive full screen mode. The Action and Navigation bar are hidden, still, the navigation bar ocupies place in the screen.

That black space it's exactly the space of the nav bar. My layout never draw over that space... What can I do?

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    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);
}

Answer 1

Look in your activity_main.xml for

android:fitsSystemWindows="true"

If you find, remove it or set false