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KolodaView is a class designed to simplify the implementation of Tinder like cards on iOS. It adds convenient functionality such as a UITableView-style dataSource/delegate interface for loading views dynamically, and efficient view loading, unloading .
- Supported build target - iOS 9.0 (Xcode 7)
KolodaView requires ARC.
pod 'Koloda', '~> 2.0.1'KolodaView is subclassed from UIView and - as with all UIKit components - it should only be accessed from the main thread. You may wish to use threads for loading or updating KolodaView contents or items, but always ensure that once your content has loaded, you switch back to the main thread before updating the KolodaView.
To install via CocoaPods add this line to your Podfile
use_frameworks!
pod "Koloda"To install manually the KolodaView class in an app, just drag the KolodaView, DraggableCardView, OverlayView class files (demo files and assets are not needed) into your project. Also you need to install facebook-pop. Or add bridging header if you are using CocoaPods.
The KolodaView has the following properties:
weak var dataSource: KolodaViewDataSource!An object that supports the KolodaViewDataSource protocol and can provide views to populate the KolodaView.
weak var delegate: KolodaViewDelegate?An object that supports the KolodaViewDelegate protocol and can respond to KolodaView events.
public var currentCardNumberThe index of front card in the KolodaView (read only).
public var countOfCardsThe count of cards in the KolodaView (read only). To set this, implement the kolodaNumberOfCards: dataSource method.
var countOfVisibleCardsThe count of displayed cards in the KolodaView.
The KolodaView class has the following methods:
func reloadData()This reloads all KolodaView item views from the dataSource and refreshes the display.
func revertAction()Applies undo animation and decrement currentCardNumber.
func applyAppearAnimation()Applies appear animation.
func swipeLeft() Applies swipe left animation and action, increment currentCardNumber.
func swipeRight()Applies swipe right animation and action, increment currentCardNumber.
public func frameForCardAtIndex(index: UInt) -> CGRect Calculates frames for cards. Useful for overriding. See example to learn more about it.
The KolodaView follows the Apple convention for data-driven views by providing two protocol interfaces, KolodaViewDataSource and KolodaViewDelegate. The KolodaViewDataSource protocol has the following methods:
func kolodaNumberOfCards(koloda: KolodaView) -> UIntReturn the number of items (views) in the KolodaView.
func kolodaViewForCardAtIndex(koloda: KolodaView, index: UInt) -> UIViewReturn a view to be displayed at the specified index in the KolodaView.
func kolodaViewForCardOverlayAtIndex(koloda: KolodaView, index: UInt) -> OverlayView?Return a view for card overlay at the specified index. For setting custom overlay action on swiping(left/right), you should override didSet of overlayState property in OverlayView. (See Example)
The KolodaViewDelegate protocol has the following methods:
func kolodaDidSwipedCardAtIndex(koloda: KolodaView,index: UInt, direction: SwipeResultDirection)This method is called whenever the KolodaView swipes card. It is called regardless of whether the card was swiped programatically or through user interaction.
func kolodaDidRunOutOfCards(koloda: KolodaView)This method is called when the KolodaView has no cards to display.
func kolodaDidSelectCardAtIndex(koloda: KolodaView, index: UInt)This method is called when one of cards is tapped.
func kolodaShouldApplyAppearAnimation(koloda: KolodaView) -> BoolThis method is fired on reload, when any cards are displayed. If you return YES from the method, the koloda will apply appear animation.
func kolodaShouldMoveBackgroundCard(koloda: KolodaView) -> BoolThis method is fired on start of front card swipping. If you return YES from the method, the koloda will move background card with dragging of front card.
func kolodaShouldTransparentizeNextCard(koloda: KolodaView) -> BoolThis method is fired on koloda's layout and after swiping. If you return YES from the method, the koloda will transparentize next card below front card.
func kolodaBackgroundCardAnimation(koloda: KolodaView) -> POPPropertyAnimation?Return a pop frame animation to be applied to backround cards after swipe. This method is fired on swipping, when any cards are displayed. If you don't return frame animation, or return nil, the koloda will apply default animation.
Version 2.0
- Swift 2.0 support
Version 1.1
- New delegate methods
- Fixed minor issues
Version 1.0
- Release version.
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Copyright © 2015 Yalantis
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