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Enable CADisplayLink to run at a user-defined preferredFramesPerSecond
Just a draft for testing at the moment.. if we want to include the way to set `preferredFramesPerSecond`, might make sense to expose some kind of API on `RiveView` or `RiveViewModel` to set on `CADisplayLink` when we create it for the animation loop. In particular, the change to `Info.plist` below is what enables the display link to go to 120fps. One caveat is that in setting `.preferredFramesPerSecond`, this API is marked as deprecated by Apple.. and still need to understand what the alternative is https://developer.apple.com/documentation/quartzcore/cadisplaylink/1648421-preferredframespersecond Diffs= 97b7622bc Enable CADisplayLink to run at a user-defined preferredFramesPerSecond (#6111) Co-authored-by: Zachary Plata <[email protected]>
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Example-iOS/Source/Examples/SwiftUI/SwiftVariableFPS.swift
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| // | ||
| // SwiftVariableFPS.swift | ||
| // Example (iOS) | ||
| // | ||
| // Created by Zach Plata on 10/20/23. | ||
| // Copyright © 2023 Rive. All rights reserved. | ||
| // | ||
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| import SwiftUI | ||
| import RiveRuntime | ||
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| struct SwiftVariableFPS: DismissableView { | ||
| var dismiss: () -> Void = {} | ||
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| private var stateChanger = RiveViewModel(fileName: "skills", stateMachineName: "Designer's Test") | ||
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| var body: some View { | ||
| ScrollView{ | ||
| VStack { | ||
| stateChanger.view() | ||
| .frame(height:200) | ||
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| HStack{ | ||
| Button("Prefer 30 fps") { | ||
| if #available(iOS 15.0, *) { | ||
| stateChanger.setPreferredFrameRateRange(preferredFrameRateRange: CAFrameRateRange(minimum: 30, maximum: 120, preferred: 30)) | ||
| } else { | ||
| stateChanger.setPreferredFramesPerSecond(preferredFramesPerSecond: 30) | ||
| } | ||
| } | ||
| Button("Prefer 60 fps") { | ||
| if #available(iOS 15.0, *) { | ||
| stateChanger.setPreferredFrameRateRange(preferredFrameRateRange: CAFrameRateRange(minimum: 30, maximum: 120, preferred: 60)) | ||
| } else { | ||
| stateChanger.setPreferredFramesPerSecond(preferredFramesPerSecond: 60) | ||
| } | ||
| } | ||
| Button("Prefer 120 fps") { | ||
| if #available(iOS 15.0, *) { | ||
| stateChanger.setPreferredFrameRateRange(preferredFrameRateRange: CAFrameRateRange(minimum: 30, maximum: 120, preferred: 120)) | ||
| } else { | ||
| stateChanger.setPreferredFramesPerSecond(preferredFramesPerSecond: 120) | ||
| } | ||
| } | ||
| } | ||
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| } | ||
| }.onAppear() { | ||
| if #available(iOS 15.0, *) { | ||
| stateChanger.setPreferredFrameRateRange(preferredFrameRateRange: CAFrameRateRange(minimum: 30, maximum: 120, preferred: 120)) | ||
| } else { | ||
| stateChanger.setPreferredFramesPerSecond(preferredFramesPerSecond: 120) | ||
| } | ||
| } | ||
| } | ||
| } | ||
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