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ios - iOS逐渐加入矩形动画

转载 作者:塔克拉玛干 更新时间:2023-11-02 09:53:35 25 4
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我在 Xcode 中有一个单一 View 应用程序,并在 ViewController.swift 中执行以下操作。我的目标是让屏幕在 5 秒内逐渐填满棕色矩形。我是不是遗漏了什么或者方法完全错误?

override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
let expandAnimation: CABasicAnimation = CABasicAnimation(keyPath: "path")
expandAnimation.fromValue = UIBezierPath(rect: CGRect(x: 0.0, y: 0.0, width: 0.0, height: 0.0))
expandAnimation.toValue = UIBezierPath(rect: CGRect(x: 0.0, y: 0.0, width: self.view.bounds.size.width, height: self.view.bounds.size.height))
expandAnimation.duration = 5.0
expandAnimation.fillMode = kCAFillModeForwards
expandAnimation.isRemovedOnCompletion = false
let rectLayer: CAShapeLayer = CAShapeLayer()
rectLayer.fillColor = UIColor.brown.cgColor
rectLayer.path = UIBezierPath(rect: CGRect(x: 0.0, y: 0.0, width: 0.0, height: 0.0)).cgPath
rectLayer.add(expandAnimation, forKey: nil)
self.view.layer.addSublayer(rectLayer)
}

我不希望颜色逐渐出现。我想要一种玻璃填充效果。想象一下

Water Filling Fancy

除了花哨的波浪效果。

最佳答案

在更好地理解您的问题之后,您想模拟水玻璃的归档(没有波浪动画),您可以通过以下方式实现:

    let myLayer: CALayer = .init()
myLayer.backgroundColor = UIColor.red.cgColor
self.view.layer.addSublayer(myLayer)

func animateFilling(to view:UIView)
{
var mFrame = CGRect(x: 0, y: view.frame.size.height, width: view.frame.size.width, height: 0)
myLayer.frame = mFrame
let fillingAnim = CABasicAnimation(keyPath: "bounds")
fillingAnim.fillMode = kCAFillModeForwards
fillingAnim.fromValue = mFrame
fillingAnim.duration = 2
fillingAnim.isRemovedOnCompletion = false
mFrame.size.height = 1000
fillingAnim.toValue = mFrame
myLayer.add(fillingAnim, forKey: nil)
}

关于ios - iOS逐渐加入矩形动画,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/47988399/

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