Android CollapsingToolbarLayout collapse Listener

Question

I am using CollapsingToolBarLayout alongside with AppBarLayout and CoordinatorLayout, and they are working Fine altogether. I set my <

Answer 1

This code worked for me

mAppBarLayout.addOnOffsetChangedListener(new   AppBarLayout.OnOffsetChangedListener() {
        @Override
        public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
            if (verticalOffset == -mCollapsingToolbarLayout.getHeight() + mToolbar.getHeight()) {
                //toolbar is collapsed here
                //write your code here
            }
        }
    });