Apple has begun using a pill-shaped "grabber" drag handle grip to represent draggable drawers in Apple Maps, Find My, etc.
A grabber is a visual affordance that indicates that a sheet is resizable. Showing a grabber may be useful when it isn't apparent that a sheet can resize or when the sheet can't dismiss interactively.
The drag handle is similar in design to the iPhone X home screen and app-switching icon released in iOS 11.
Are grabber handles a standard UIKit and/or SwiftUI visual component available in iOS and Interface Builder? I'm unable to find one within Xcode.
If there is not a standard component, how can such a grabber be built from UIViews?