The view controller in the drawer view controller should be able to conform to a drawer delegate that reports stuff like snap point changes and the scroll offset etc. This way the view in the drawer view can change its UI depending on where the drawer is snapped. For instance, in the Apple Maps app the views below the search bar fade out and become invisible when the drawer is snapped to the bottom snap point.
The view controller in the drawer view controller should be able to conform to a drawer delegate that reports stuff like snap point changes and the scroll offset etc. This way the view in the drawer view can change its UI depending on where the drawer is snapped. For instance, in the Apple Maps app the views below the search bar fade out and become invisible when the drawer is snapped to the bottom snap point.