HomeContainer.java

@Override
    public View focusSearch(View focused, int direction) {
        switch (direction) {
            case FOCUS_DOWN:
                if (mContainer.hasFocus())
                    return focused;
                else if (mTopMenu.hasFocus()) {
                    mLastFocused = mContainer;
                    return mContainer;
                } else
                    return null;
            case FOCUS_UP:
                if (mContainer.hasFocus()) {
                    mLastFocused = mTopMenu;
                    return mTopMenu;
                }
                return null;
            case FOCUS_RIGHT:
            case FOCUS_LEFT:
                return focused;

            default:
                return super.focusSearch(focused, direction);
        }
    }

what is the mContainer? Let's say I have created a custom LinearLayout as parent in which I will add this code. And the recycleView would be child of the Custom LinearLayout