从UINavigationController视图堆栈中解除呈现的UIImagePickerController

Question

考虑这个视图控制器层次结构：

UIViewController (root)
   - present: UINavigationController
       - push: UIViewController A
       - push: UIViewController B
           - present: UIImagePickerController

当解雇UIImagePickerController时，UINavigationController会弹出它的根视图控制器（A）。

以下是要呈现的代码：

UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.modalPresentationStyle = UIModalPresentationFullScreen;
imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
imagePickerController.mediaTypes = @[ (NSString *)kUTTypeImage ];
imagePickerController.delegate = self;

[self presentViewController: imagePickerController
                   animated: YES
                 completion: nil];

我尝试了各种方案和目标，以便为视图控制器提供相同的最终结果。在UIImagePickerController关闭之前/之后保存/恢复viewController堆栈会导致不合需要的视图转换。

有没有办法实现这个目标？

Answer 1

只要您使用UIModalPresentationOverFullScreen modalPresentationStyle，解雇就会起作用。

UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.modalPresentationStyle = UIModalPresentationOverFullScreen;
imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
imagePickerController.mediaTypes = @[ (NSString *)kUTTypeImage ];
imagePickerController.delegate = self;

[self presentViewController: imagePickerController
                   animated: YES
                 completion: nil];