BottomSheet fly away with visibility change

Question

I have a bottom sheet with a NestedScrollView inside (see below). When I press on a FAB button, I want to make some parts in this NestedScrollView invisible. But when I chan

Answer 1

The BottomSheetBehavior has its own behavior by which you can get respective results. The following are the behavior of the bottomsheet.

STATE_DRAGGING, STATE_SETTLING, STATE_EXPANDED, STATE_COLLAPSED, STATE_HIDDEN.

Don't use visibility of any layouts.

Use this behavior in your code like:

fab.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        int behaviorState = bottomSheetBehavior.getState();
        if (behaviorState == BottomSheetBehavior.STATE_EXPANDED) {
            bottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
        } else {
            bottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
        }
    }
});