iOS开发——项目实战Swift篇&swift 2.0项目开发总结二（开发常用）

 1 /// MARK: 摄像机和相册的操作和代理方法
 2 extension MeViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
 3 
 4   /// 打开照相功能
 5   private func openCamera() {
 6       if UIImagePickerController.isSourceTypeAvailable(.Camera) {
 7           pickVC.sourceType = .Camera
 8           self.presentViewController(pickVC, animated: true, completion: nil)
 9       } else {
10           SVProgressHUD.showErrorWithStatus("模拟器没有摄像头,请链接真机调试", maskType: SVProgressHUDMaskType.Black)
11       }
12   }
13 
14   /// 打开相册
15   private func openUserPhotoLibrary() {
16       pickVC.sourceType = .PhotoLibrary
17       pickVC.allowsEditing = true
18       presentViewController(pickVC, animated: true, completion: nil)
19   }
20 
21   func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
22       // 对用户选着的图片进行质量压缩,上传服务器,本地持久化存储
23       if let typeStr = info[UIImagePickerControllerMediaType] as? String {
24           if typeStr == "public.image" {
25               if let image = info[UIImagePickerControllerEditedImage] as? UIImage {
26                   var data: NSData?
27                   let smallImage = UIImage.imageClipToNewImage(image, newSize: iconView!.iconButton.size)
28                   if UIImagePNGRepresentation(smallImage) == nil {
29                       data = UIImageJPEGRepresentation(smallImage, 0.8)
30                   } else {
31                       data = UIImagePNGRepresentation(smallImage)
32                   }
33 
34                   if data != nil {
35                       do {
36                           // TODO: 将头像的data传入服务器
37                           // 本地也保留一份data数据
38                           try NSFileManager.defaultManager().createDirectoryAtPath(theme.cachesPath, withIntermediateDirectories: true, attributes: nil)
39                       } catch _ {
40                       }
41                       NSFileManager.defaultManager().createFileAtPath(SD_UserIconData_Path, contents: data, attributes: nil)
42 
43                       iconView!.iconButton.setImage(UIImage(data: NSData(contentsOfFile: SD_UserIconData_Path)!)!.imageClipOvalImage(), forState: .Normal)
44 
45                   } else {
46                       SVProgressHUD.showErrorWithStatus("照片保存失败", maskType: SVProgressHUDMaskType.Black)
47                   }
48               }
49           }
50       } else {
51           SVProgressHUD.showErrorWithStatus("图片无法获取", maskType: SVProgressHUDMaskType.Black)
52       }
53 
54       picker.dismissViewControllerAnimated(true, completion: nil)
55   }
56 
57   func imagePickerControllerDidCancel(picker: UIImagePickerController) {
58       pickVC.dismissViewControllerAnimated(true, completion: nil)
59   }
60 }
61