LNPopupController

LNPopupController is a framework for presenting view controllers as popups of other view controllers, much like the Apple Music and Podcasts apps. Once a popup bar is presented with a content view controller, the user can swipe or tap the popup bar at any point to present the popup. After finishing, the user dismisses the popup by either swiping or tapping the popup close button. The framework is intended to be very generic and work in most situations, so it is implemented as a category over UIViewController. Each view controller can present a popup bar, docked to a bottom view. For UITabBarController subclasses, the default docking view is the tab bar. For UINavigationController subclasses, the default docking view is the toolbar. For other classes, the popup bar is presented at the bottom of the screen. View controller subclasses can provide their own docking views.