swift中关键帧动画

发布时间：2020-12-14 06:30:29 所属栏目：百科来源：网络整理

导读：@IBOutlet weak var bgView: UIView! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view,typically from a nib. } override func touchesBegan(_ touches: SetUITouch,with event: UIEvent?) { let anim

@IBOutlet weak var bgView: UIView! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view,typically from a nib. } override func touchesBegan(_ touches: Set<UITouch>,with event: UIEvent?) { let animation = CAKeyframeAnimation() animation.duration = 0.5 let value1 = bgView.frame.origin let value2 = CGPoint.init(x: 0,y: 0) let value3 = CGPoint(x: 400,y: 200) animation.values = NSArray(objects: NSValue(cgPoint: value1),NSValue(cgPoint: value2),NSValue(cgPoint: value3)) as! [Any] bgView.layer.add(animation,forKey: "position") }

（编辑：李大同）

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