Question

我使用的是UIImagePickerController。

UIImagePickerController *picker = [[UIImagePickerController alloc] init];    
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
popover = [[UIPopoverController alloc] initWithContentViewController:picker];
[popover presentPopoverFromRect:CGRectMake(0, 10, 500, 500) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];

当我使用来自图库类的任何照片时，会调用委托didFinishPickingMediaWithInfo。

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

    NSLog(@"inside Delegate image pick");

    [popover dismissPopoverAnimated:YES];
    [picker dismissViewControllerAnimated:YES completion:NULL];
}

这样工作正常，但我遇到了imagePickerControllerDidCancel委托方法的问题。

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

    NSLog(@"inside Cancel ");

    [popover dismissPopoverAnimated:YES];

    [picker dismissViewControllerAnimated:YES completion:NULL];
}

永远不会打电话给{p> imagePickerControllerDidCancel，我不知道为什么。如何在用户单击取消时关闭弹出窗口？

Answer 1

如果imagePickerControllerDidCancel未接到来电，则表示您需要实施UIImagePickerControllerDelegate

实施例

@interface ImageViewController : UIViewController<UIImagePickerControllerDelegate>

如何在iPad上解雇UIImagePickerController

1 个答案: