- 代码正在工作想要转换成纯 SwiftUI 代码。如果没有 UIViewRepresentable,UIHostingController 请告诉我如何实现。谢谢 *
结构 PathAnimatingView:UIViewRepresentable 其中内容:查看 {
var path: Path
let content: () -> Content
func makeUIView(context: UIViewRepresentableContext<PathAnimatingView>) -> UIView {
let view = UIView(frame: .zero)
let animation = CAKeyframeAnimation(keyPath: #keyPath(CALayer.position))
animation.duration = CFTimeInterval(10)
animation.repeatCount = 10
animation.path = path.cgPath
animation.keyTimes = [0.0,0.5,1.0]
animation.isRemovedOnCompletion = true
animation.fillMode = .forwards
animation.timingFunction = CAMediaTimingFunction(name: .linear)
let sub = UIHostingController(rootView: content())
sub.view.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(sub.view)
sub.view.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true
sub.view.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
view.layer.add(animation, forKey: "snake")
return view
}
func updateUIView(_ uiView: UIView, context: UIViewRepresentableContext<PathAnimatingView>) {
print(uiView)
}
}