How to check if menu has closed?

[Bekakk]

Hi
I'm using your repository and I have one question.
Is it a possible to check when menu closed.Here is a your method,whitch does not has static duration

` public void smoothScrollContentTo(int targetOffset, float velocity) {
setCurrentState(STATE_SCROLL);
int distance = targetOffset - mCurrentContentOffset;
velocity = Math.abs(velocity);
int duration = 400;
if (velocity > 0) {
duration = 3 * Math.round(1000 * Math.abs(distance / velocity));
}
duration = Math.min(duration, MAX_DURATION);
mScroller.abortAnimation();
mScroller.startScroll(mCurrentContentOffset, 0, distance, 0, duration);
invalidate();
}

Simple
I want to call my function,when menu has closed successfully
Thanks`