iphone - 当 allowEditing = NO 时，UIImagePickerController 返回图像 nil；并在 iPad 上以 2 倍的速度运行

Question

- (IBAction) buttonAction:(id) sender {
 if (self.picker == nil) {   
        self.picker = [[UIImagePickerController alloc] init];
        self.picker.delegate = self;
        self.picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
        self.picker.allowsEditing = NO;     }  [self.navigationController presentModalViewController:_picker
    animated:YES];     

}

• (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

  [self dismissModalViewControllerAnimated:YES];
  
  UIImage *myImage = (UIImage *) [info
  objectForKey:UIImagePickerControllerOriginalImage]; 
  
   if (myImage == nil) NSLog(@"Image nil");
  
  }
  

它在 iPhone 设备上可以正常工作，但在 iPhone 2x 模式下的 iPad 上却不能工作 错误？还是我错了？