Xcode9学习笔记62

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
        var images = [UIImage]()//初始化一个数组，用来存放图片素材
        for i in 1 ... 19 {//创建一个循环，将导入的图片依次存入数组中
            images.append(UIImage(named: "animation(i)")!)
        }
        
        let screenw = UIScreen.main.bounds.size.width
        let imageView = UIImageView(frame: CGRect(x: 0, y: 60,  screenw, height: 1050/700*screenw))
        imageView.animationImages = images//设置图像视图的动画图片属性
        imageView.animationDuration = 38//设置帧动画时长
        imageView.animationRepeatCount = 0//设置无限次循环
        imageView.startAnimating()//开始播放
        
        self.view.addSubview(imageView)
        
        let labelView = UILabel(frame: CGRect(x: 0, y: 70+1050/700*screenw,  screenw, height: 30))
        labelView.text = "Designed by Lisen"
        labelView.textAlignment = NSTextAlignment.center
        
        self.view.addSubview(labelView)
    }