iOS开发——UI篇Swift篇&UIImageView

 1     override func viewDidLoad() {
 2         super.viewDidLoad()
 3         
 4         titleLabel.text = titleString
 5         
 6         //通过坐标和大小来创建图像视图
 7         var imageView:UIImageView = UIImageView(frame: CGRectMake(20, 100, 90, 90))
 8         imageView.image = UIImage(named: "SwiftClassWeiXin.png")
 9         self.view.addSubview(imageView)
10         
11         
12         //通过图片来初始化大小
13         var imageView2:UIImageView = UIImageView(image: UIImage(named: "SwiftClassWeiXin.png"))
14         imageView2.frame = CGRectMake(20, 200, 90, 90)
15         self.view.addSubview(imageView2)
16         
17         
18         var image:UIImage! = UIImage(named: "SwiftClassWeiXin.png")
19         
20         
21         //从文件路径得到图片,type是指文件后缀
22         
23         //定义路径
24         let path : String? = NSBundle.mainBundle().pathForResource("SwiftClassWeiXin1", ofType: "png")
25         
26         //解包
27         if let sValue = path {
28             var newImage:UIImage! = UIImage(contentsOfFile: sValue)
29         }
30         
31         
32         //从网络地址获取图片
33         
34         //定义一个地址字符串常量
35         let imageUrlString:String = "http://www.iphonetrain.com/core/res/images/logo.png";
36         
37         //通过String类型，转换成NSUrl对象
38         let url:NSURL! = NSURL(string: imageUrlString)
39         
40         //从网络获取数据流
41         var data:NSData! = NSData(contentsOfURL: url)
42         
43         //通过数据流初始化图片
44         var newImage2:UIImage! = UIImage(data: data)
45         
46         imageView2.image = newImage2
47         
48         
49         imageView2.contentMode = UIViewContentMode.Center
50         
51         
52         
53         //定义图片名数组
54         var imageArray:[UIImage]! = [
55             UIImage(named: "1kar1.png")!,
56             UIImage(named: "1kar2.png")!,
57             UIImage(named: "1kar3.png")!,
58             UIImage(named: "1kar4.png")!,
59             UIImage(named: "1kar5.png")!,
60             UIImage(named: "1kar6.png")!,
61             UIImage(named: "1kar7.png")!,
62             UIImage(named: "1kar8.png")!,
63             UIImage(named: "1kar9.png")!,
64             UIImage(named: "1kar10.png")!,
65             UIImage(named: "1kar11.png")!,
66             UIImage(named: "1kar12.png")!,
67             UIImage(named: "1kar13.png")!]
68 
69         
70         //设置图像视图的animationImages属性
71         imageView2.animationImages = imageArray
72 
73         //设置动画时间
74         imageView2.animationDuration = 5.0
75         
76         //设置动画播放次数
77         imageView2.animationRepeatCount = 2
78         
79         //开始播放动画
80        imageView2.startAnimating()
81         
82         
83 //        [self.aImageView setIsAccessibilityElement:YES];
84 //        [self.aImageView setAccessibilityLabel:self.title];
85         
86     }