Immersive mode navigation becomes sticky after volume press or minimise-restore

Solution 1:

The following code works for me:

public void updateUI() {
    final View decorView = getWindow().getDecorView();
    decorView.setOnSystemUiVisibilityChangeListener (new View.OnSystemUiVisibilityChangeListener() {
        @Override
        public void onSystemUiVisibilityChange(int visibility) {
            if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
                decorView.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_STICKY);
                }
            }
        });
}

And called the listener on onCreate and onResume methods:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    updateUI();
}

@Override
public void onResume() {
    super.onResume();
    updateUI();
}

Solution 2:

My solution is to set the UI-Visibility flags in three places:

1. When getting the focus
2. In onResume
3. In the OnSystemUiVisibilityChangeListener listener

The third solved my problem. The others might not be needed, but I left them. This is what is looks like:

  private void setupMainWindowDisplayMode() {
    View decorView = setSystemUiVisilityMode();
    decorView.setOnSystemUiVisibilityChangeListener(new OnSystemUiVisibilityChangeListener() {
      @Override
      public void onSystemUiVisibilityChange(int visibility) {
        setSystemUiVisilityMode(); // Needed to avoid exiting immersive_sticky when keyboard is displayed
      }
    });
  }

  private View setSystemUiVisilityMode() {
    View decorView = getWindow().getDecorView();
    int options;
    options =
        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 // hide nav bar
      | View.SYSTEM_UI_FLAG_FULLSCREEN // hide status bar
      | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;

    decorView.setSystemUiVisibility(options);
    return decorView;
  }

setupMainWindowDisplayMode() gets called in onCreate().