Xcode9學習筆記62 - 使用UIImageView製作幀動

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
        var images = [UIImage]()//初始化一個數組，用來存放圖片素材
        for i in 1 ... 19 {//創建一個循環，將導入的圖片依次存入數組中
            images.append(UIImage(named: "animation\(i)")!)
        }
        
        let screenw = UIScreen.main.bounds.size.width
        let imageView = UIImageView(frame: CGRect(x: 0, y: 60, width: screenw, height: 1050/700*screenw))
        imageView.animationImages = images//設置圖像視圖的動畫圖片屬性
        imageView.animationDuration = 38//設置幀動畫時長
        imageView.animationRepeatCount = 0//設置無限次循環
        imageView.startAnimating()//開始播放
        
        self.view.addSubview(imageView)
        
        let labelView = UILabel(frame: CGRect(x: 0, y: 70+1050/700*screenw, width: screenw, height: 30))
        labelView.text = "Designed by Lisen"
        labelView.textAlignment = NSTextAlignment.center
        
        self.view.addSubview(labelView)
    }