I have a card at the bottom of the home page of can control switch, use the ViewPager implementation, and each card can slide up and down at the bottom of the content, using BootomSheetBehavior can realize here, but the problem is coming, card can be spread to the title bar position, then I will have to set the height of the ViewPager to match_parent, this is the aftermath of the main page of other controls touch events to consume the ViewPager, would you please tell me what the good plan to give a big?