Swift UIActionSheet在iPad上崩溃？

我现在遇到了完全的挫折，因为我找不到任何错误，但我的操作表在iPad上崩溃了，但在iPhone上运行良好。下面是操作代码

if (view.annotation.title as String!) == "San Francisco" {

                currentLat = 37.615223
                    currentLong = -122.389977

                url = "www.google.de"

                let action:UIActionSheet = UIActionSheet(title: "Change Map Type", delegate: self, cancelButtonTitle: "Back", destructiveButtonTitle: nil, otherButtonTitles: "Product Page", "Video")
                action.showInView(self.view)
                action.tag = 0
                VideoID = "XXXXXX"


            }

因此，应该处理的行动是

if actionSheet.tag == 0{
            if buttonIndex == 1{ performSegueWithIdentifier("showShop", sender: self) }
            if buttonIndex == 2{ UIApplication.sharedApplication().openURL(NSURL(string: "http://www.youtube.com/watch?v=\(youtubeVideoID)")) }
            //if buttonIndex == 2{ performSegueWithIdentifier("showYoutube", sender: self) }

        }

Youtube one在iPhone和iPad上运行良好，“showShop”在iPhone上运行良好，但在iPad上运行不好

“showShop”继续前进到我的ViewControllersView，看起来像

import UIKit

class ViewControllerShopView: UIViewController {
/* ################################################## IBOutlets ################################################## */
    @IBOutlet weak var activity3: UIActivityIndicatorView!
    @IBOutlet weak var webView: UIWebView!
/* ################################################## viewDidLoad ################################################## */
    override func viewDidLoad() {
        super.viewDidLoad()

        loadurl()
    }
/* ################################################## didReceiveMemoryWarning ################################################## */
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()

        println("memory warning")
    }
/* ################################################## viewWillAppear ################################################## */
    override func viewWillAppear(animated: Bool) {

        loadurl()
    }
/* ################################################## loadurl func ################################################## */
    func loadurl(){
        var loadingurl = "google.com"
        var homeurl = "google1.com"
        loadingurl = url
        let webviewURL = NSURL(string: loadingurl)
        let request = NSURLRequest(URL: webviewURL)
        webView.loadRequest(request)
    }
/* ################################################## HomeButton ################################################## */
    @IBAction func Reload(sender: AnyObject) {

        var loadingurl = "google.com"
        var homeurl = "google1.com"
        loadingurl = url
        let webviewURL = NSURL(string: loadingurl)
        let request = NSURLRequest(URL: webviewURL)
        webView.loadRequest(request)
    }
/* ################################################## Activity Indicator ################################################## */
    func webViewDidStartLoad(_ : UIWebView){activity3.startAnimating()}
    func webViewDidFinishLoad(_ : UIWebView){activity3.stopAnimating()}



}

但是Segue从来没有在iPad上完成过，它只是在Segue上崩溃了。

有人知道会出什么问题吗

也试过这个

@IBAction func BTfindme(sender: AnyObject) {
        let actionSheetController: UIAlertController = UIAlertController(title: "Action Sheet", message: "Test", preferredStyle: .ActionSheet)
        let cancelAction: UIAlertAction = UIAlertAction(title: "Cancel", style: .Cancel) { action -> Void in
            }
        actionSheetController.addAction(cancelAction)

        let ActionOne: UIAlertAction = UIAlertAction(title: "Action one", style: .Default) { action -> Void in
            }
        actionSheetController.addAction(ActionOne)

        let ActionTwo: UIAlertAction = UIAlertAction(title: "Action two", style: .Default) { action -> Void in
            }
        ActionTwo.addAction(choosePictureAction)
        self.presentViewController(actionSheetController, animated: true, completion: nil)
    }

---

这也会导致ipad崩溃，而不是iphone崩溃

如果您的项目同时支持iOS7和iOS8，则需要在运行时检查系统版本；您可以将此代码段插入到任何方法中：

let systemVersion: NSInteger = (UIDevice.currentDevice().systemVersion as NSString).integerValue
if systemVersion < 8 {
    // iOS7:
    let action:UIActionSheet = UIActionSheet(title: "Change Map Type", delegate: self, cancelButtonTitle: "Back", destructiveButtonTitle: nil, otherButtonTitles: "Product Page", "Video")
    action.tag = 0
    action.showInView(self.view)
} else {
    // iOS8:
    let alertController: UIAlertController = UIAlertController(title: "Change Map Type", message: nil, preferredStyle: UIAlertControllerStyle.ActionSheet)
    let cancelAction: UIAlertAction = UIAlertAction(title: "Back", style: UIAlertActionStyle.Cancel, handler: nil)
    let button1action: UIAlertAction = UIAlertAction(title: "Product Page", style: UIAlertActionStyle.Default, handler: { (action: UIAlertAction!) -> () in
        // doing something for "product page"
    })
    let button2action: UIAlertAction = UIAlertAction(title: "Video", style: UIAlertActionStyle.Default, handler: { (action: UIAlertAction!) -> () in
        // doing something for "video"
    })
    alertController.addAction(cancelAction)
    alertController.addAction(button1action)
    alertController.addAction(button2action)

    // for iPAD support:
    alertController.popoverPresentationController?.sourceView = self.view
    alertController.popoverPresentationController?.sourceRect = CGRectMake(self.view.bounds.width / 2.0, self.view.bounds.height / 2.0, 1.0, 1.0) // this is the center of the screen currently but it can be any point in the view

    self.presentViewController(alertController, animated: true, completion: nil)
}

---

在iOS8+上，您需要使用

UIActionController

，而

UIActionSheet

和

UIAlertView

是不推荐使用的，更多信息如下：，但是您没有提到哪些iOS版本受到影响…@holex我的操作表必须看起来像actioncontroller吗？它们看起来一样，因为

UIAlertController

是一个类中

UIActionSheet

和

UIAlertView

的“合并”（或“组合”（如果您愿意）版本，因此最终用户不会发现差异，而是在引擎盖下（在您的代码中）如果您的项目同时支持iOS7和iO8，则需要处理此类弃用。@holex我的意思是代码中的外观：）对不起。目前它只支持ios8no，

UIAlertController

的工作原理与旧的

UIActionSheet

或

UIAlertView

完全不同。（抱歉！我错误输入了上面类的名称！）由于未捕获的异常“NSGenericeException”，导致***终止应用程序时崩溃，原因是：'您的应用程序提供了UIAlertControllerStyleActionSheet样式的UIAlertController（）。具有此样式的UIAlertController的modalPresentationStyle是UIModalPresentationPopover。您必须通过警报控制器的popoverPresentationController提供此popover的位置信息。必须提供sourceView和sourceRect或barButtonItem。如果在显示警报控制器时不知道此信息，您可以在UIPopoverPresentationControllerDelegate方法-PrepareForPoverPresentation中提供它。“我刚刚在一个新项目上用Xcode6 6A313模拟器对它进行了测试，它适用于iphone，但在iPad上崩溃。这里有一个干净的示例项目适用于iphone，但在iPad上崩溃

extension ViewController : UIActionSheetDelegate {

    func actionSheet(actionSheet: UIActionSheet, didDismissWithButtonIndex buttonIndex: Int) {

        if actionSheet.tag == 0 {
            if buttonIndex == 1 {
                // doing something for "product page"
            } else if (buttonIndex == 2) {
                // doing something for "video"
            }
        }
    }

}