DeckTransitioningDelegate

public final class DeckTransitioningDelegate: NSObject, UIViewControllerTransitioningDelegate

The DeckTransitioningDelegate class vends out the presentation and animation controllers required to present a view controller with the Deck transition style

The following snippet described the steps for presenting a given ModalViewController with the DeckTransitioningDelegate

let modal = ModalViewController()
let transitionDelegate = DeckTransitioningDelegate()
modal.transitioningDelegate = transitionDelegate
modal.modalPresentationStyle = .custom
present(modal, animated: true, completion: nil)

Initializers

  • Returns a transitioning delegate to perform a Deck transition. All parameters are optional. Swipe-to-dimiss is enabled by default. Leaving the duration parameters empty gives you animations with the default durations (0.3s for both)

    Declaration

    Swift

    @objc public init(isSwipeToDismissEnabled: Bool = true,
                  presentDuration: NSNumber? = nil,
                  presentAnimation: (() -> ())? = nil,
                  presentCompletion: ((Bool) -> ())? = nil,
                  dismissDuration: NSNumber? = nil,
                  dismissAnimation: (() -> ())? = nil,
                  dismissCompletion: ((Bool) -> ())? = nil)

    Parameters

    isSwipeToDismissEnabled

    Whether the modal view controller should be dismissed with a swipe gesture from top to bottom
    presentDuration

    The duration for the presentation animation
    presentAnimation

    An animation block that will be performed alongside the card presentation animation
    presentCompletion

    A block that will be run after the card has been presented
    dismissDuration

    The duration for the dismissal animation
    dismissAnimation

    An animation block that will be performed alongside the card dismissal animation
    dismissCompletion

    A block that will be run after the card has been dismissed
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UIViewControllerTransitioningDelegate

  • Returns an animation controller that animates the modal presentation

    This is internal infrastructure handled entirely by UIKit and shouldn’t be called directly

    Declaration

    Swift

    public func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning?

    Parameters

    presented

    The modal view controller to be presented onscreen
    presenting

    The view controller that will be presenting the modal
    source

    The view controller whose present method is called

    Return Value

    An animation controller that animates the modal presentation

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  • Returns an animation controller that animates the modal dismissal

    This is internal infrastructure handled entirely by UIKit and shouldn’t be called directly

    Declaration

    Swift

    public func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning?

    Parameters

    dismissed

    The modal view controller which will be dismissed

    Return Value

    An animation controller that animates the modal dismisall

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  • Returns a presentation controller that manages the modal presentation

    This is internal infrastructure handled entirely by UIKit and shouldn’t be called directly

    Declaration

    Swift

    public func presentationController(forPresented presented: UIViewController, presenting: UIViewController?, source: UIViewController) -> UIPresentationController?

    Parameters

    presented

    The modal view controller
    presenting

    The view controller which presented the modal
    source

    The view controller whose present method was called to present the modal

    Return Value

    A presentation controller that manages the modal presentation

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