iphone - 无法在此处关闭操作表

一个UILongPressGestureRecognizer已添加到具有action handleLongPressOnPhotos的imageView中。最相关的代码如下：

- (IBAction)handleLongPressOnPhotos:(UILongPressGestureRecognizer *)sender
{
self.imageWillBeSaved = (UIImageView *)sender.view; //breakPoint1
UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:@"Save the photo" otherButtonTitles: @"Go to the Original photo", nil];
actionSheet.actionSheetStyle = UIActionSheetStyleDefault;
[actionSheet showInView:self.view]; //breakPoint2
NSLog( @"actionSheet addr when created is %p", actionSheet );//breakPoint3
[actionSheet release];//breakPoint4
}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    switch (buttonIndex) {
        case 0:
            UIImageWriteToSavedPhotosAlbum(self.imageWillBeSaved.image, self, @selector(image: didFinishSavingWithError:contextInfo:), nil);
            //[actionSheet dismissWithClickedButtonIndex:0 animated:YES]; i have tried to use this method here, but it didn't work.
            break;

        default:
            break;
    }
}

- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
{
    if (error != NULL)
    {
        // handle error
    }
    else
    {
        // handle ok status
    }
}

单击“保存照片”按钮后，操作表将不会消失。如果我再次单击该按钮，操作表将关闭，照片将保存两次。代码中是否有任何问题？提前致谢！

附言imageView是scrollView的子视图，而scrollView在tableViewCell中。

- (IBAction)handleLongPressOnPhotos:(UILongPressGestureRecognizer *)sender
{
self.imageWillBeSaved = (UIImageView *)sender.view; //breakPoint1
UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:@"Save the photo" otherButtonTitles: @"Go to the Original photo", nil];
actionSheet.actionSheetStyle = UIActionSheetStyleDefault;
[actionSheet showInView:self.view]; //breakPoint2
NSLog( @"actionSheet addr when created is %p", actionSheet );//breakPoint3
[actionSheet release];//breakPoint4
}

我在“ handleLongPressOnPhotos：”方法中将两个断点设置为breakPoint1和breakPoint1。在imageView被longPressed之后，我遵循了代码的步骤。步骤顺序为：中断点1->中断点2->中断点1->中断点2->中断点3->中断点4->中断点3->中断点4，然后熄灭。显而易见，actionSheet已被显示两次，从而导致了问题。这很奇怪，我不知道原因，避免这种情况。

在另一个问题中解决了问题UILongPressGestureRecognizer gets called twice when pressing down

感谢@ Laddu，@ MichaelDautermann，@ sreecharan

最佳答案

它看起来不错，但请在此处添加nslog：

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{

  NSLog(@"buttonIndex.....%d",buttonIndex);

  switch (buttonIndex) {

     case 0:
        UIImageWriteToSavedPhotosAlbum(self.imageWillBeSaved.image, self, @selector(image: didFinishSavingWithError:contextInfo:), nil);

        //[actionSheet dismissWithClickedButtonIndex:0 animated:YES]; i have tried to use this method here, but it didn't work.

        break;

     default:
        break;
   }
}

检查是否还在.h文件中添加了ACtionSheet委托。

关于iphone - 无法在此处关闭操作表，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/10511047/