BottomSheetPresentation

A UIPresentationController and attendant clases for iOS to present a view controller pinned to the bottom of the screen like an action sheet.

Installation

Swift Package Manager

To use BottomSheetPresentation with the Swift Package Manager, add it as a dependency to your project from within Xcode or as a dependency in your Package.swift file.

CocoaPods

To use BottomSheetPresentation with CocoaPods, add a dependency to your Podfile:

target 'MyAwesomeApp' do
  pod 'BottomSheetPresentation'
end

Then run pod install and use the generated .xcworkspace to open your project.

Carthage

To use BottomSheetPresentation with Carthage, add a dependency to your Cartfile:

github "Detroit-Labs/BottomSheetPresentation"

Run carthage update to build the framework. Then follow the rest of the steps in Carthage’s README to add the framework to your project, configure a Run Script build phase, etc.

Using BottomSheetPresentation

Swift

To use BottomSheetPresentation, create a BottomSheetPresentationManager and set it as the transitioningDelegate of the view controller you want to present, then set the modalPresentationStyle of the view controller to .custom.

let manager = BottomSheetPresentationManager() // Save this reference somewhere
let viewControllerToPresent = …
viewControllerToPresent.transitioningDelegate = manager
viewControllerToPresent.modalPresentationStyle = .custom

present(viewControllerToPresent, animated: true, completion: nil)

Objective-C

BottomSheetPresentation also works with Objective-C:

BottomSheetPresentationManager *manager = [[BottomSheetPresentationManager alloc] init];

UIViewController *viewControllerToPresent = …;
viewControllerToPresent.transitioningDelegate = manager;
viewControllerToPresent.modalPresentationStyle = UIModalPresentationCustom;

[self presentViewController:viewControllerToPresent
                   animated:YES
                 completion:NULL];

Requirements

To correctly compute the height of the presented view controller, it must either satisfy Auto Layout constraints for a height using systemLayoutSizeFitting(UIView.layoutFittingCompressedSize) or have a non-zero preferredContentSize.