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Fix solid rounded button gloss animation on high refresh rate screens

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This commit is contained in:
Ilya Laktyushin 2019-12-04 17:51:41 +04:00
parent 4c5f504346
commit 2e12321d82
1 changed files with 24 additions and 34 deletions
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56
submodules/SolidRoundedButtonNode/Sources/SolidRoundedButtonNode.swift
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@ -203,7 +203,7 @@ public final class SolidRoundedButtonGlossNode: ASDisplayNode {
}
}
private var progress: CGFloat = 0.0
private var displayLink: CADisplayLink?
private var animator: ConstantDisplayLinkAnimator?
private let buttonCornerRadius: CGFloat
private var gradientColors: NSArray?
@ -216,28 +216,33 @@ public final class SolidRoundedButtonGlossNode: ASDisplayNode {
self.isOpaque = false
self.isLayerBacked = true
class DisplayLinkProxy: NSObject {
weak var target: SolidRoundedButtonGlossNode?
init(target: SolidRoundedButtonGlossNode) {
self.target = target
var previousTime: CFAbsoluteTime?
self.animator = ConstantDisplayLinkAnimator(update: { [weak self] in
guard let strongSelf = self else {
return
}
@objc func displayLinkEvent() {
self.target?.displayLinkEvent()
let currentTime = CFAbsoluteTimeGetCurrent()
if let previousTime = previousTime {
var delta: CGFloat
if strongSelf.progress < 0.05 || strongSelf.progress > 0.95 {
delta = 0.001
} else {
delta = 0.009
}
delta *= CGFloat(currentTime - previousTime) * 60.0
var newProgress = strongSelf.progress + delta
if newProgress > 1.0 {
newProgress = 0.0
}
self.displayLink = CADisplayLink(target: DisplayLinkProxy(target: self), selector: #selector(DisplayLinkProxy.displayLinkEvent))
self.displayLink?.isPaused = true
self.displayLink?.add(to: RunLoop.main, forMode: .common)
strongSelf.progress = newProgress
strongSelf.setNeedsDisplay()
}
previousTime = currentTime
})
self.updateGradientColors()
}
deinit {
self.displayLink?.invalidate()
}
private func updateGradientColors() {
let transparentColor = self.color.withAlphaComponent(0.0).cgColor
self.gradientColors = [transparentColor, transparentColor, self.color.withAlphaComponent(0.12).cgColor, transparentColor, transparentColor]
@ -245,27 +250,12 @@ public final class SolidRoundedButtonGlossNode: ASDisplayNode {
override public func willEnterHierarchy() {
super.willEnterHierarchy()
self.displayLink?.isPaused = false
self.animator?.isPaused = false
}
override public func didExitHierarchy() {
super.didExitHierarchy()
self.displayLink?.isPaused = true
}
private func displayLinkEvent() {
let delta: CGFloat
if self.progress < 0.05 || self.progress > 0.95 {
delta = 0.001
} else {
delta = 0.009
}
var newProgress = self.progress + delta
if newProgress > 1.0 {
newProgress = 0.0
}
self.progress = newProgress
self.setNeedsDisplay()
self.animator?.isPaused = true
}
override public func drawParameters(forAsyncLayer layer: _ASDisplayLayer) -> NSObjectProtocol? {