rootView.setFocusableInTouchMode(true);
        rootView.requestFocus();
        rootView.setOnKeyListener(new View.OnKeyListener() {
            @Override
            public boolean onKey(View v, int keyCode, KeyEvent event) {
                if (DEBUG) {
                    Log.d(TAG, "[onCreateView][keyCode: " + keyCode + " ]");
                }
                if (keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_UP) {
                    if (DEBUG) {
                        Log.d(TAG, "[onCreateView][onKey Back listener work]");
                    }
                    if (getFragmentManager() != null) {
                        getFragmentManager().popBackStack(null, FragmentManager.POP_BACK_STACK_INCLUSIVE);
                    }
                    return true;
                }
                return false;
            }
        });