How to slow down Android GridView scroll speed on button pressed? (LeanBack)

Question

I'm working on an AndroidTV app, using the Leanback library.

I've got a few HorizontalGridView (which is an extension of RecyclerView) working correctly, however, scrolling through them by pressing and holding right|left button makes it scroll incredibly fast, too fast!

How can I slow down the speed at which it scrolls by leaving the button pressed?

Answer 1

Do not listen your key event for some milli-time in your activity.

 @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        long current = System.currentTimeMillis();
        boolean res = false;
        if (current - mLastKeyDownTime < 300) {
            res = true;
        } else {
            res = super.onKeyDown(keyCode, event);
            mLastKeyDownTime = current;
        }
        return res;
    }