CollapsingToolbarLayout expand only when at the top
问题 I have some problems with AppBarLayout and CollapsingToolbarLayout. This is what currently happens: https://www.youtube.com/watch?v=z4yD8rmjSjU The downwards scrolling motion is exactly what I want. However when I scroll up again, the orange bar should appear immediately (which it does), but I want the ImageView to start appearing only when the user has scrolled to the very top. Can anyone help me to achieve this effect? This is my layout xml: <android.support.design.widget.AppBarLayout