How to completely exit from Immersive full screen mode?

Calling setSystemUiVisibility() with View.SYSTEM_UI_FLAG_VISIBLE clears all flags:

getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);

What worked for me is the following:

View decorView = activity.getWindow().getDecorView();
decorView.setSystemUiVisibility(0);

I might be wrong but it seems like calling setSystemUiVisibility with 0 clears the flags which were previously applied.