从UIPopoverController中的UINavigationController中删除UIImagePickerController

Question

这适用于iOS6，因此不确定问题是什么。

在我的UINavigationController（ioNavController）中我向UIImagePickerController呈现以下内容：

UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
imagePicker.modalInPopover = YES;
imagePicker.modalPresentationStyle = UIModalPresentationCurrentContext;
[self presentViewController:imagePicker animated:NO  completion:^{  }]; 

在我的UIImagePickerControllerDelegate中（确实被调用）我有以下内容：

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {

    //This does not work
    [ioNavController dismissViewControllerAnimated:YES completion:^{ /* Cleanup if Needed */ }];

    //This does not work
    [[picker parentViewController] dismissViewControllerAnimated:YES completion:^{ /* Cleanup if Needed */ }];

    //This does not work
    [picker removeFromParentViewController];

    // This presents a new view on the Nav Controller. It shows the new view ontop of the ImagePicker. Image Picker View does not repond to touches. 
    [ioNavController pageToSelect:0];

}

Answer 1

您的委托是否在调用imagepicker的同一个控制器中？调用presentViewController的同一个控制器应该调用下面的行，并且将正确删除imagepicker。

[self dismissViewControllerAnimated:YES completion:nil]; //self here it's the same reference that called presentViewController

告诉我工作或帮助。

Answer 2

使用此代码时，UIImagePickerController将自行删除：

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)pPicker {
[pPicker dismissViewControllerAnimated:YES completition:NULL]; }