Objective c 双击使用UIAlertController显示的外部操作表弹出窗口，返回ios8 xcode 6 beta 5中的父视图

我有一个行动表，我正在ios8（xcode 6 beta 5）中使用UIAlertcontroller演示。 我使用UIAlertcontroller是因为UIActionsheet（在iOS 8中不推荐使用）在iOS 8中无法正常工作，单击actionsheet中的任何选项会将我带回父视图。 现在，我在UIAlertcontroller中也面临一个问题，双击操作表弹出框外的按钮将我带回到上一个父视图。 以下是我的代码片段：

UIAlertController *actionSheetIos8;

actionSheetIos8 = [UIAlertController alertControllerWithTitle:nil message:nil preferredStyle:UIAlertControllerStyleActionSheet];

NSArray *buttonsArray = [self returnMoreArray];
int startY = 10;
for (int i = 0; i < [buttonsArray count]; i++) {

    UIAlertAction *defaultAction = [UIAlertAction actionWithTitle:[buttonsArray objectAtIndex:i] style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
        NSString *newStr = [buttonsArray objectAtIndex:i];
        newStr = [[newStr lowercaseString] stringByReplacingOccurrencesOfString:@" " withString:@"_"];
    }];
    [actionSheetIos8 addAction:defaultAction];        
}
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
}];

[actionSheetIos8 setModalPresentationStyle:UIModalPresentationPopover];
UIPopoverPresentationController *popPresenter = [actionSheetIos8
                                                 popoverPresentationController];
popPresenter.sourceView = sender;
popPresenter.sourceRect = [sender frame];
dispatch_async(dispatch_get_main_queue(), ^ {
    [self presentViewController:actionSheetIos8 animated:YES completion:nil];
});

UIAlertController*actionSheetIos8；
actionSheetIos8=[UIAlertController alertControllerWithTitle:nil消息：nil首选样式：UIAlertControllerStyleActionSheet]；
NSArray*按钮NSArray=[self returnMoreArray]；
int startY=10；
对于（int i=0；i<[按钮阵列计数]；i++）{
UIAlertAction*defaultAction=[UIAlertAction actionWithTitle:[按钮阵列对象索引：i]样式：UIAlertActionStyleDefault处理程序：^（UIAlertAction*action）{
NSString*newStr=[buttonsArray对象索引：i]；
newStr=[[newStr lowercasesetring]stringByReplacingOccurrencesOfString:@“with string:@”u“]；
}];
[actionSheetIos8 addAction:defaultAction]；
}
UIAlertAction*cancelAction=[UIAlertAction actionWithTitle:@“取消”样式：UIAlertActionStyleCancel处理程序：^（UIAlertAction*action）{
}];
[actionSheetIos8 setModalPresentationStyle:UIModalPresentationPopover]；
UIPopoverPresentationController*popPresenter=[actionSheetIos8
popoverPresentationController]；
popPresenter.sourceView=发送方；
popPresenter.sourceRect=[sender frame]；
dispatch\u async（dispatch\u get\u main\u queue（），^{
[self-presentViewController:actionSheetIos8动画：是完成：无]；
});

在我的popover presentation controller场景中，以下解决方案适用于我；我怀疑你的处境也有同样的问题：

在

UIPopoverPresentationController

上设置代理（符合

UIPopoverPresentationController

协议）

实现委托方法

popoperpresentationcontrollersoulddismisspover:

例如：

/**
 The presence of this delegate callback inhibits the popover presentation controller
 from mistakenly calling 'dismissViewControllerAnimated:completion:' on us twice.
 */
- (BOOL)popoverPresentationControllerShouldDismissPopover:(UIPopoverPresentationController *)popoverPresentationController;
{
    NSLog(@"delegate method called asking permission to dismiss popover");
    return YES;
}

下面是更多的上下文，我正在使用呈现的控制器和委托设置我的popover呈现控制器：

// Set modal presentation style and issue the presentViewController:animated:completion:
// call before retrieving popover presentation controller created for us, as suggested
// in the API documentation that is more recent than the sample code from the
// WWDC2014 slides in Session 228:
presentedController.modalPresentationStyle = UIModalPresentationPopover;
[self presentViewController:presentedController animated:YES completion:nil];

// Now we can retrieve the popover presentation controller and configure it:
UIPopoverPresentationController *popPC = presentedController.popoverPresentationController;
popPC.permittedArrowDirections = UIPopoverArrowDirectionAny;
CGRect popoverRect = cell.infoButton.bounds; // Assume 'cell' exists; it's an object of mine with an 'infoButton' view.
popPC.sourceView = cell.infoButton; // has to be provided along with sourceRect
popPC.sourceRect = popoverRect;  // has to be provided along with sourceView
popPC.delegate = self; // or whomever you set to be your popover presentation controller delegate.

---

我只是在使用popover演示控制器时遇到了同样的问题；在popover外双击会产生这种意想不到的（不受欢迎的）副作用。现在正在寻找解决方案……这个解决方案对我使用Xcode 6.0.1（6A317）很有效。rdar://18481560 我的雷达被标记为被苹果欺骗，所以我确信其他人都在大量报道这一点，并且在不久的将来会有一个适当的修复。