UIImagePickerController ios 5問題當選擇圖像uising UIPopoverController在ipad

Question

我有問題，從ios 5中的ipad UIImagePickerController中選擇圖像。 相同的代碼在ios 4中完美運行。

那麼是什麼問題？ 任何人都可以幫助我如何在iOS 5中使用UIImagePickerController？ 對於UIImagePickerController，ios 4和ios 5是否有區別？

下面是該問題的代碼。

-(IBAction)selectExitingPicture:(id)sender 
{ 

    if ([popoverController isPopoverVisible]) { 
     [popoverController dismissPopoverAnimated:YES]; 
     [popoverController release]; 
    } else { 
     if ([UIImagePickerController isSourceTypeAvailable: 
      UIImagePickerControllerSourceTypePhotoLibrary]) 
     { 
      UIImagePickerController *imagePicker = 
      [[UIImagePickerController alloc] init]; 
      imagePicker.delegate = self; 
      imagePicker.sourceType = 
      UIImagePickerControllerSourceTypePhotoLibrary; 
      imagePicker.mediaTypes = [NSArray arrayWithObjects: 
             (NSString *) kUTTypeImage, 
             nil]; 
      imagePicker.allowsEditing = NO; 

      popoverController = [[UIPopoverController alloc] 
             initWithContentViewController:imagePicker]; 

      popoverController.delegate = self; 


      [popoverController presentPopoverFromRect:CGRectMake(280, 700, 320, 400) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES]; 

      [imagePicker release]; 

     } 
    } 

} 


-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 
{ 
    [popoverController dismissPopoverAnimated:true]; 


    NSString *mediaType = [info 
          objectForKey:UIImagePickerControllerMediaType]; 
    [self dismissModalViewControllerAnimated:YES]; 
    if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) { 

    UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage]; 

     selectedImageView.image = image; 

    } 
    else if ([mediaType isEqualToString:(NSString *)kUTTypeMovie]) 
    { 
     // Code here to support video if enabled 
    } 
} 

在imagePickerController從UIImagePicker選擇圖像後：didFinishPickingMediaWithInfo方法我接收到的圖像參考0 * 0

感謝

Answer 1

試試這個

 -(IBAction)buttonpressed{ 
     UIImagePickerController *anImagePickerController = [UIImagePickerController new]; 
     anImagePickerController.delegate = self; 
     anImagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera; 

     UIImageView *anImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"overlay_320x427.png"]]; 
     anImageView.frame = CGRectMake(0, 1, 320, 427); 
     anImageView.hidden = YES; 
     anImagePickerController.cameraOverlayView = anImageView; 

     [self presentModalViewController:anImagePickerController animated:YES]; 
     [anImagePickerController release]; 

     [NSTimer scheduledTimerWithTimeInterval:0.1 
             target:self 
             selector:@selector(timerFireMethod:) 
             userInfo:anImageView 
             repeats:NO]; 
     [anImageView release]; 
    } 
    - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)info { 




/* Do something here*/ 
     [self dismissModalViewControllerAnimated:YES]; 




    } 

    - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker { 
     [self dismissModalViewControllerAnimated:YES]; 
    }