Whatsapp like Collapsing Toolbar

Question

In my app, I would like to implement Whatsapp home page like collapsible toolbar. That is, while scrolling down the list, the toolbar should go up and the tabs should pin at

Answer 1

Ok, so in order to pass the scrolling event of your listview/recyclerview to the appbarlayout, you need to put the below flag in your framelayout/relativelayout/linearlayout containing your scrolling view, i.e listview/recyclerview :

app:layout_behavior="@string/appbar_scrolling_view_behavior"

for example, in your case it should be like:

  
                         
            
            
                ..........
            
        
    


    

     // Frame containing your listview/recyclerview/ scrollingview