UIImageView -- 選擇圖片

- (void)viewDidLoad
{
    [super viewDidLoad];


_imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 200, 200)];
[self.view addSubview:_imageView];
_imageView.backgroundColor = [UIColor redColor];
//

_imageView.userInteractionEnabled = YES;

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(choosePictrue)];
//tap.numberOfTapsRequired  = 2;
[_imageView addGestureRecognizer:tap];
[tap release];
[_imageView release];


}

(void)choosePictrue{
  UIImagePickerController *picc = [[UIImagePickerController alloc] init];
  picc.delegate = self;
  picc.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
  [self presentViewController:picc animated:YES completion:nil];
  [picc release];
}

(void)imagePickerController:(UIImagePickerController )picker didFinishPickingMediaWithInfo:(NSDictionary )info{
  _imageView.image = [info objectForKey:UIImagePickerControllerOriginalImage];
  [picker dismissViewControllerAnimated:YES completion:nil];


}

(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
[picker dismissViewControllerAnimated:YES completion:nil];
}
@end</pre>