android 吸顶效果

https://github.com/search?q=AppBarLayout+++RecyclerView 

 

mBinding.tablayoutViewpager.post(new Runnable(){
        @override
        public void run(){
            mBinding.tablayoutviewpager.gettayptparams().height=mBinding.scrollview.getMeasuredHeight()
            mBinding.tablayoutviewpager.requestLayout();
});

 

向上

吸顶的方案:
1、事件分发拦截  
2. collapsingtoolbarlayout coordidatorlayout
 3、当 itablayout到达顶部就让 recyclerview嵌套滚动