1 - (IBAction)openCamera:(id)sender
2 {
3 //UIImagePickerController 类方法,判断源是否可用 UIImagePickerController是一个图片挑选控制器 可以通过三种途径挑选图片。Camera、PhotoLibrary、SavedPhotoAlbum
4 BOOL hasCamera = [UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera];//判断照相机是否可用(是否有摄像头)
5 if(hasCamera == YES)
6 {
7 UIImagePickerController *picker = [[UIImagePickerController alloc] init];
8 picker.sourceType = UIImagePickerControllerSourceTypeCamera;
9 picker.delegate = self;
10 picker.allowsEditing = YES; //是否可编辑
11 [self presentModalViewController:picker animated:YES];
12 [picker release];
13 }
14 else
15 {
16 UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"你没有摄像头" delegate:nil cancelButtonTitle:@"ok!" otherButtonTitles:nil];
17 [alert show];
18 [alert release];
19 }
20
21 }
1 - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
2 {
3 NSLog(@"%@",info);
4 // {
5 // UIImagePickerControllerCropRect = "NSRect: {{-1, 320}, {1937, 1937}}";
6 // UIImagePickerControllerEditedImage = "<UIImage: 0x196bd0>";
7 // UIImagePickerControllerMediaMetadata = {
8 // DPIHeight = 72;
9 // DPIWidth = 72;
10 // Orientation = 6;
11 // "{Exif}" = {
12 // ApertureValue = "2.970853654340484";
13 // BrightnessValue = "2.246098001053075";
14 // ColorSpace = 1;
15 // DateTimeDigitized = "2012:09:20 11:47:12";
16 // DateTimeOriginal = "2012:09:20 11:47:12";
17 // ExposureMode = 0;
18 // ExposureProgram = 2;
19 // ExposureTime = "0.06666666666666667";
20 // FNumber = "2.8";
21 // Flash = 24;
22 // FocalLength = "3.85";
23 // ISOSpeedRatings = (
24 // 125
25 // );
26 // MeteringMode = 5;
27 // PixelXDimension = 2592;
28 // PixelYDimension = 1936;
29 // SceneType = 1;
30 // SensingMethod = 2;
31 // Sharpness = 2;
32 // ShutterSpeedValue = "3.911199862602335";
33 // SubjectArea = (
34 // 1295,
35 // 967,
36 // 699,
37 // 696
38 // );
39 // WhiteBalance = 0;
40 // };
41 // "{TIFF}" = {
42 // DateTime = "2012:09:20 11:47:12";
43 // Make = Apple;
44 // Model = "iPhone 4";
45 // Software = "5.1.1";
46 // XResolution = 72;
47 // YResolution = 72;
48 // };
49 // };
50 // UIImagePickerControllerMediaType = "public.image";
51 // UIImagePickerControllerOriginalImage = "<UIImage: 0x18bb30>";
52 // }
53 UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
54 imgV.image = image;
55
56 //如果想把某个UIImage对象存储到默认相册,使用下面代码
57 //UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);
58
59
60 [self dismissModalViewControllerAnimated:YES];
61
62 }
63
64 - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
65 {
66 [self dismissModalViewControllerAnimated:YES];
67 }
68
69 - (IBAction)openPhotoLibrary:(id)sender //相册列表
70 {
71 UIImagePickerController *picker = [[UIImagePickerController alloc] init];
72 picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
73 picker.delegate = self;
74 picker.allowsEditing = YES; //是否可编辑
75 [self presentModalViewController:picker animated:YES];
76 [picker release];
77 }
78
79 - (IBAction)openSavedPhotoAlbum:(id)sender //默认相册
80 {
81 UIImagePickerController *picker = [[UIImagePickerController alloc] init];
82 picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
83 picker.delegate = self;
84 picker.allowsEditing = YES; //是否可编辑
85 [self presentModalViewController:picker animated:YES];
86 [picker release];
87
88 }