如何访问ipad应用程序的照片库

Question

我在开发iPad应用时尝试访问照片库时遇到问题。但是，相同的代码适用于iPhone dev。生成的错误是：

On iPad, UIImagePickerController must be presented via UIPopoverController

我正在使用以下代码进行iPad开发：

if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary])
        {
            UIImagePickerController * picker = [[UIImagePickerController alloc] init];
            picker.delegate = self;
            picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
            [self presentModalViewController:picker animated:YES];
            [picker release]; 
        }

Answer 1

尝试使用iPad中的弹出控制器，不支持模态视图控制器

即使我遇到了同样的问题，所以尝试使用pop over controller并且现在可以正常工作：）

UIImagePickerController * picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;

 popControl = [[UIPopoverController alloc]initWithContentViewController:picker];

popControl.delegate=self;
[popControl presentPopoverFromRect:browseButton.bounds inView:mainView    permittedArrowDirections:UIPopoverArrowDirectionLeft animated:YES];