In the Slack app for iOS, if you swipe right you get a "drawer" bit of UI containing a page view controller. But if you swipe left, instead of the main view sliding most of the way off screen, you have another view slide out over the top of the main view.
What is the name of this slide-over UI component? Is it a standard native component, or a custom 3rd party component?
Check out this component. Basically a menu slider with different views