小波说雨燕 第三季 构建 swift UI 之 UI组件集－视图集（五）Image View视图 学习笔记...
留下两个问题：1、后面涉及到的异常不知道原因。2、动态图片到了程序里面就不动了。
然后：
上面是有问题的，下面是没有问题的了。
代码（另外简单写的代码，纠正了那个错误）：
1 import UIKit 2 3 class ViewController: UIViewController{ 4 5 @IBOutlet weak var imageView: UIImageView! 6 @IBAction func button(sender: UIButton) { 7 imageView.animationImages = [UIImage(named: "p1")!,UIImage(named: "p2")!,UIImage(named: "p3")!,UIImage(named: "p4")!,UIImage(named: "p5")!] 8 imageView.contentMode = .ScaleAspectFit 9 imageView.animationDuration = 10 10 imageView.startAnimating() 11 12 } 13 override func viewDidLoad() { 14 super.viewDidLoad() 15 16 } 17 18 override func didReceiveMemoryWarning() { 19 super.didReceiveMemoryWarning() 20 } 21 }
根据小波老师改进后的方法（如果有100张，如果一张一张添加创建对象，就不好了）：
1 import UIKit 2 3 class ViewController: UIViewController{ 4 5 @IBOutlet weak var imageView: UIImageView! 6 @IBAction func button(sender: UIButton) { 7 // imageView.animationImages = [UIImage(named: "p1")!,UIImage(named: "p2")!,UIImage(named: "p3")!,UIImage(named: "p4")!,UIImage(named: "p5")!] 8 imageView.animationImages = (1...5).map{ 9 UIImage(named: "p\($0)")! 10 } 11 imageView.contentMode = .ScaleAspectFit 12 imageView.animationDuration = 10 13 imageView.startAnimating() 14 15 } 16 override func viewDidLoad() { 17 super.viewDidLoad() 18 19 } 20 21 override func didReceiveMemoryWarning() { 22 super.didReceiveMemoryWarning() 23 } 24 }