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ギャラリーから画像を取得して、UIImageViewに表示しようとしています。私の問題は、この画像を表示することです。私のコード：

- (void)getMediaFromSource:(UIImagePickerControllerSourceType)sourceType {

     UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
     imagePickerController.delegate = self;
imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

     self.popController = [[UIPopoverController alloc] initWithContentViewController:imagePickerController];
     self.popController.delegate = self;
     [self.popController presentPopoverFromRect:[fromGalaryButton frame] inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
}

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
     [self.popController dismissPopoverAnimated:YES];
     self.image = [info objectForKey:UIImagePickerControllerEditedImage];
     [self updateDisplay];
 }

 -(void)updateDisplay {
     self.imageView.image = self.image;
     self.imageView.hidden = NO;
     [self.imageView reloadInputViews];
}

私self.imageViewは正常に表示されています。しかし、画像はありません。私の問題はありますか？

4

1 に答える 1

2

ギャラリーから画像を選択するだけの場合、didFinishPickingMediaWithInfoメソッドのコード行は次のようになります。

self.image = [info objectForKey:UIImagePickerControllerOriginalImage];

次のように、メソッド内から imageView を更新することもできます。

self.imageView.image = [info objectForKey:UIImagePickerControllerOriginalImage];

これが私がこれをした方法です：

- (void)viewDidLoad {
  [super viewDidLoad];
  picker = [[UIImagePickerController alloc] init];
  picker.delegate = self;
  imagePickerPopover = [[UIPopoverController alloc] initWithContentViewController:picker];

}

- (IBAction)getPhoto:(id)sender {

if(sender == choosePhotoButton) {
   picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
   [imagePickerPopover presentPopoverFromBarButtonItem:choosePhotoButton permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
}
}

    - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
        [imagePickerPopover dismissPopoverAnimated:YES];
        imageViewer.image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];

    }
于 2012-07-31T19:05:40.247 に答える