iOS 调用相册

[cpp] view plaincopy

1. 选中某个图片后，显示出来。  
2. - (void)showPicker  
3. {  
4.     UIImagePickerController *picker = [[UIImagePickerController alloc] init];  
5.     picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;  
6.     picker.delegate = self;  
7.     [self presentModalViewController:picker animated:YES];  
8.     [picker release];  
9.       
10. }  
11.   
12. // Implement viewDidLoad to do additional setup after loading the view, typically from a nib.  
13. - (void)viewDidLoad {  
14.     [super viewDidLoad];  
15.       
16.       
17.     UIButton *button = [UIButton buttonWithType: UIButtonTypeRoundedRect];  
18.     button.frame = CGRectMake(10.0f, 60.0f, 120.0f, 30.0f);  
19.     [button setTitle:  @"Picker" forState: UIControlStateNormal];  
20.     [button addTarget: self action: @selector(showPicker) forControlEvents: UIControlEventTouchUpInside];  
21.     [self.view addSubview: button];  
22.       
23.       
24.     m_imageView = [[UIImageView alloc] initWithImage: nil];  
25.     m_imageView.frame = CGRectMake(120.0f, 120.0f, 60.0f, 60.0f);  
26.     [self.view addSubview: m_imageView];  
27.       
28.       
29. }  
30.   
31.   
32. #pragma mark delegate  
33. - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)aImage editingInfo:(NSDictionary *)editingInfo  
34. {  
35.   
36.     m_imageView.image = aImage;  
37.       
38.     [picker dismissModalViewControllerAnimated:YES];  
39.       
40. }