Hacked in play/pause to SwiftUI #28
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,60 +1,123 @@ | ||
| import SwiftUI | ||
| import Combine | ||
| import RiveRuntime | ||
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| /// Controller manages the state of the Rive animation | ||
| class RiveController: ObservableObject { | ||
| @Published var fit: Fit | ||
| @Published var alignment: RiveRuntime.Alignment | ||
| @Published var playback = Playback.play | ||
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| init( | ||
| fit: Fit = Fit.Contain, | ||
| alignment: RiveRuntime.Alignment = RiveRuntime.Alignment.Center, | ||
| autoplay: Bool = false | ||
| ) { | ||
| self.fit = fit | ||
| self.alignment = alignment | ||
| self.playback = autoplay ? Playback.play : Playback.stop | ||
| } | ||
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| /// Play animations | ||
| func play() { | ||
| self.playback = Playback.play | ||
| } | ||
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| /// Pause all animations and state machines | ||
| func pause() { | ||
| self.playback = Playback.pause | ||
| } | ||
| } | ||
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| struct UIRiveView: UIViewRepresentable { | ||
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| // MARK: - Properties | ||
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| let resource: String | ||
| @ObservedObject var controller: RiveController | ||
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| // Delegate handlers for loop and play events | ||
| var loopAction: LoopAction = nil | ||
| var playAction: PlaybackAction = nil | ||
| var pauseAction: PlaybackAction = nil | ||
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| // MARK: - UIViewRepresentable | ||
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| /// Constructs the view | ||
| func makeUIView(context: Context) -> RiveView { | ||
| let riveView = RiveView( | ||
| riveFile: getRiveFile(resourceName: resource), | ||
| fit: controller.fit, | ||
| alignment: controller.alignment, | ||
| autoplay: controller.playback == Playback.play, | ||
| loopDelegate: context.coordinator, | ||
| playDelegate: context.coordinator, | ||
| pauseDelegate: context.coordinator | ||
| ) | ||
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| // Try out target-action? | ||
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| return riveView | ||
| } | ||
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| /// Called when the view model changes | ||
| func updateUIView(_ uiView: RiveView, context: UIViewRepresentableContext<UIRiveView>) { | ||
| uiView.fit = controller.fit | ||
| uiView.alignment = controller.alignment | ||
| uiView.playback = controller.playback | ||
| } | ||
|
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| // Constructs a coordinator for managing updating state | ||
| func makeCoordinator() -> Coordinator { | ||
| // Coordinator(loopCount: $loopCount) | ||
| Coordinator(controller: controller, loopAction: loopAction, playAction: playAction, pauseAction: pauseAction) | ||
| } | ||
| } | ||
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| extension UIRiveView { | ||
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| // MARK: - Coordinator | ||
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| // Coordinator between RiveView and UIRiveView | ||
| class Coordinator: NSObject, LoopDelegate, PlayDelegate, PauseDelegate { | ||
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| private var controller: RiveController | ||
| private var loopAction: LoopAction | ||
| private var playAction: PlaybackAction | ||
| private var pauseAction: PlaybackAction | ||
| var subscribers: [AnyCancellable] = [] | ||
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| init(controller: RiveController, loopAction: LoopAction, playAction: PlaybackAction, pauseAction: PlaybackAction) { | ||
| self.loopAction = loopAction | ||
| self.playAction = playAction | ||
| self.pauseAction = pauseAction | ||
| self.controller = controller | ||
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| // This stuff is all experimental and may get removed | ||
| let fitSubscription = controller.$fit.receive(on: RunLoop.main).sink(receiveValue: fitDidChange) | ||
| subscribers.append(fitSubscription) | ||
| } | ||
|
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| // Cancel subscribers when Coordinator is deinitialized | ||
| deinit { | ||
| subscribers.forEach { $0.cancel() } | ||
| } | ||
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| var fitDidChange: (Fit) -> Void = { fit in | ||
| print("Fit changed to \(fit)") | ||
| } | ||
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| func loop(_ animationName: String, type: Int) { | ||
| loopAction?(animationName, type) | ||
| } | ||
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| func play(_ animationName: String) { | ||
| playAction?(animationName) | ||
| } | ||
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| func pause(_ animationName: String) { | ||
| pauseAction?(animationName) | ||
| } | ||
| } | ||
| } |
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love it