UIActivityViewController在iOS 8 iPad上崩溃

Question

我目前正在使用Xcode 6（Beta 6）测试我的应用程序。 UIActivityViewController可与iPhone设备和模拟器配合使用，但与iPad模拟器和设备（iOS 8）崩溃并带有以下日志

Terminating app due to uncaught exception 'NSGenericException', 
reason: 'UIPopoverPresentationController 
(<_UIAlertControllerActionSheetRegularPresentationController: 0x7fc7a874bd90>) 
should have a non-nil sourceView or barButtonItem set before the presentation occurs.

我正在为iOS 7和iOS 8使用以下iPhone和iPad代码

NSData *myData = [NSData dataWithContentsOfFile:_filename];
NSArray *activityItems = [NSArray arrayWithObjects:myData, nil];
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:nil applicationActivities:nil];
activityViewController.excludedActivityTypes = @[UIActivityTypeCopyToPasteboard];
[self presentViewController:activityViewController animated:YES completion:nil];

我也得到了一个类似的崩溃我的其他应用程序。你能指导我吗？ iOS 8中的UIActivityViewController有什么变化吗？我查了但是我没有找到任何关于此的内容

Answer 1

在iPad上，活动视图控制器将使用新的UIPopoverPresentationController显示为弹出窗口，它要求您使用以下三个属性之一为弹出窗口的表示指定锚点：

为了指定锚点，您需要获取对UIActivityController的UIPopoverPresentationController的引用，并设置其中一个属性，如下所示：

if ( [activityViewController respondsToSelector:@selector(popoverPresentationController)] ) { 
// iOS8
 activityViewController.popoverPresentationController.sourceView =
parentView;
 }

Answer 2

迅速：

    let activityViewController = UIActivityViewController(activityItems: sharingItems, applicationActivities: nil)

    //if iPhone
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiom.Phone) {
        self.presentViewController(activityViewController, animated: true, completion: nil)
    } else { //if iPad
        // Change Rect to position Popover
        var popoverCntlr = UIPopoverController(contentViewController: activityViewController)
        popoverCntlr.presentPopoverFromRect(CGRectMake(self.view.frame.size.width/2, self.view.frame.size.height/4, 0, 0), inView: self.view, permittedArrowDirections: UIPopoverArrowDirection.Any, animated: true)

    }

Answer 3

如果在单击UIActivityViewController时显示UIBarButtonItem，请使用以下代码：

activityViewController.popoverPresentationController?.barButtonItem = sender

否则，如果您使用其他控件，例如UIButton，请使用以下代码：

activityViewController.popoverPresentationController?.sourceView = sender
activityViewController.popoverPresentationController?.sourceRect = sender.bounds

从文档到UIPopoverPresentationController：

var barButtonItem: UIBarButtonItem? { get set }

为此属性指定值以将弹出框架锚定到指定的条形按钮项。显示时，弹出框的箭头指向指定的项目。或者，您可以使用sourceView和sourceRect属性为弹出窗口指定锚点位置。

Answer 4

swift = ios7 / ios8

let activityViewController = UIActivityViewController(activityItems: sharingItems, applicationActivities: nil)

//if iPhone
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiom.Phone) {
    // go on..
} else {
    //if iPad
    if activityViewController.respondsToSelector(Selector("popoverPresentationController")) {
        // on iOS8
        activityViewController.popoverPresentationController!.barButtonItem = self.shareButtonItem;
    }
}
self.presentViewController(activityViewController, animated: true, completion: nil)

Answer 5

Objective-C的解决方案并使用UIPopoverPresentationController

    UIActivityViewController *controller = /*Init your Controller*/;
    //if iPhone
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
        [self presentViewController:controller animated:YES completion:nil];
    }
    //if iPad
    else {
        UIPopoverPresentationController* popOver = controller.popoverPresentationController
        if(popOver){
            popOver.sourceView = controller.view;
            popOver.sourceRect = CGRectMake(self.view.frame.size.width/2, self.view.frame.size.height/4, 0, 0);
            [self presentViewController:controller animated:YES completion:nil];
        }
    }

Answer 6

我找到了这个解决方案首先，你呈现popover的视图控制器应该实现<UIPopoverPresentationControllerDelegate>协议。

接下来，您需要设置popoverPresentationController的委托。

添加这些功能：

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Assuming you've hooked this all up in a Storyboard with a popover presentation style
    if ([segue.identifier isEqualToString:@"showPopover"]) {
        UINavigationController *destNav = segue.destinationViewController;
        PopoverContentsViewController *vc = destNav.viewControllers.firstObject;

        // This is the important part
        UIPopoverPresentationController *popPC = destNav.popoverPresentationController;
        popPC.delegate = self;
    }
}

- (UIModalPresentationStyle)adaptivePresentationStyleForPresentationController: (UIPresentationController *)controller {
    return UIModalPresentationNone;
}

Answer 7

我尝试了下一个代码，它的工作原理：

首先在View Controller中放置一个条形按钮项，然后创建一个IBOutlet：

@property(weak,nonatomic)IBOutlet UIBarButtonItem *barButtonItem;

接下来是.m文件：yourUIActivityViewController.popoverPresentationController.barButtonItem = self.barButtonItem;

Answer 8

在swift 4下面的代码在iphone和ipad中工作。根据文件

您有责任使用适用于给定设备习惯用法的方法来呈现和关闭视图控制器。在iPad上，您必须在弹出窗口中显示视图控制器。在其他设备上，您必须以模态方式呈现它。

 let activityViewController = UIActivityViewController(activityItems: activityitems, applicationActivities: nil)

    if UIDevice.current.userInterfaceIdiom == .pad {

        if activityViewController.responds(to: #selector(getter: UIViewController.popoverPresentationController)) {
            activityViewController.popoverPresentationController?.sourceView = self.view
        }
    }

    self.present(activityViewController, animated: true, completion: nil)

Answer 9

对于Swift 2.0。我发现如果你试图将popover锚定到iPad上的分享按钮，这是有效的。这假设您已在工具栏中为共享按钮创建了一个插座。

func share(sender: AnyObject) {
    let firstActivityItem = "test"

    let activityViewController = UIActivityViewController(activityItems: [firstActivityItem], applicationActivities: nil)

    if UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiom.Phone {
        self.presentViewController(activityViewController, animated: true, completion: nil)
    }
    else {            
        if activityViewController.respondsToSelector("popoverPresentationController") {
            activityViewController.popoverPresentationController!.barButtonItem = sender as? UIBarButtonItem
            self.presentViewController(activityViewController, animated: true, completion: nil)
        }

    }
}

Answer 10

如果您使用swift开发iPad，请小心，它在调试时可以正常工作，但在发布时会崩溃。为了使其与testFlight和AppStore一起使用，请使用-none禁用针对swift的优化以进行发布。

Answer 11

同样的问题来到我的项目然后我找到解决方案，在iPad中打开UIActivityViewController，我们必须使用UIPopoverController

这是一个在iPhone和iPad上使用它的代码

//to attach the image and text with sharing 
UIImage *image=[UIImage imageNamed:@"giraffe.png"];
NSString *str=@"Image form My app";
NSArray *postItems=@[str,image];

UIActivityViewController *controller = [[UIActivityViewController alloc] initWithActivityItems:postItems applicationActivities:nil];

//if iPhone
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
    [self presentViewController:controller animated:YES completion:nil];
}
//if iPad
else {
    // Change Rect to position Popover
    UIPopoverController *popup = [[UIPopoverController alloc] initWithContentViewController:controller];
    [popup presentPopoverFromRect:CGRectMake(self.view.frame.size.width/2, self.view.frame.size.height/4, 0, 0)inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
}

对于swift 4.2 / swift 5

func openShareDilog() {
    let text = "share text will goes here"

    // set up activity view controller
    let textToShare = [text]
    let activityViewController = UIActivityViewController(activityItems: textToShare, applicationActivities: nil)
    activityViewController.excludedActivityTypes = [.airDrop]

    if let popoverController = activityViewController.popoverPresentationController {
        popoverController.sourceRect = CGRect(x: UIScreen.main.bounds.width / 2, y: UIScreen.main.bounds.height / 2, width: 0, height: 0)
        popoverController.sourceView = self.view
        popoverController.permittedArrowDirections = UIPopoverArrowDirection(rawValue: 0)
    }

    self.present(activityViewController, animated: true, completion: nil)
}

Answer 12

我最近在Swift 2.0中遇到了这个问题（原始问题），其中UIActivityViewController适用于iPhone，但在模拟iPad时会导致崩溃。

我只想在这里添加这个答案的线程，至少在Swift 2.0中，你不需要if语句。你可以选择popoverPresentationController。

简而言之，接受的答案似乎是说你可以只有一个sourceView，只是一个sourceRect，或者只是一个barButtonItem，但根据Apple's documentation for UIPopoverPresentationController你需要以下之一：

barButtonItem
sourceView和sourceRect

我正在研究的特定示例如下所示，我正在创建一个函数，它接受UIView（用于sourceView和sourceRect）和String（UIActivityViewController的唯一activityItem）。

func presentActivityViewController(sourceView: UIView, activityItem: String ) {

    let activityViewController = UIActivityViewController(activityItems: [activityItem], applicationActivities: [])

    activityViewController.popoverPresentationController?.sourceView = sourceView
    activityViewController.popoverPresentationController?.sourceRect = sourceView.bounds

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

这段代码适用于iPhone和iPad（我认为甚至是tvOS） - 如果设备不支持popoverPresentationController，提到它的两行代码基本上都被忽略了。

有点好，你需要做的就是让它适用于iPad只需要添加两行代码，或者如果你使用的是barButtonItem就可以添加一行代码！

Answer 13

我看到很多人在使用Swift代码时硬编码iPhone / iPad等。

这不是必需的，您必须使用语言功能。以下代码假定您将使用UIBarButtonItem，并且可以在iPhone和iPad上运行。

@IBAction func share(sender: AnyObject) {
    let vc = UIActivityViewController(activityItems: ["hello"], applicationActivities: nil)
    vc.popoverPresentationController?.barButtonItem = sender as? UIBarButtonItem
    self.presentViewController(vc, animated: true, completion: nil)
 }

注意没有If语句或任何其他疯狂的东西。 iPhone上的可选展开将为零，因此vc.popoverPresentationController?行不会在iPhone上执行任何操作。

Answer 14

使用Xamarin.iOS的解决方案。

在我的例子中，我正在进行屏幕捕获，生成图像，并允许用户共享图像。 iPad上的弹出窗口位于屏幕中间。

var activityItems = new NSObject[] { image };
var excludedActivityTypes = new NSString[] {
    UIActivityType.PostToWeibo,
    UIActivityType.CopyToPasteboard,
    UIActivityType.AddToReadingList,
    UIActivityType.AssignToContact,
    UIActivityType.Print,
};
var activityViewController = new UIActivityViewController(activityItems, null);

//set subject line if email is used
var subject = new NSString("subject");
activityViewController.SetValueForKey(NSObject.FromObject("Goal Length"), subject);

activityViewController.ExcludedActivityTypes = excludedActivityTypes;
//configure for iPad, note if you do not your app will not pass app store review
if(null != activityViewController.PopoverPresentationController)
{
    activityViewController.PopoverPresentationController.SourceView = this.View;
    var frame = UIScreen.MainScreen.Bounds;
    frame.Height /= 2;
    activityViewController.PopoverPresentationController.SourceRect = frame;
}
this.PresentViewController(activityViewController, true, null);

Answer 15

Swift，iOS 9/10（UIPopoverController弃用后）

let activityViewController = UIActivityViewController(activityItems: sharingItems, applicationActivities: nil)

    if UIDevice.currentDevice().userInterfaceIdiom == .Pad {

       if activityViewController.respondsToSelector(Selector("popoverPresentationController")) {
          activityViewController.popoverPresentationController?.sourceView = self.view
        }
    }

    self.presentViewController(activityViewController, animated: true, completion: nil)

Answer 16

在Swift中为iPad修复此问题，最好的办法就是这样做，我找到了。

    let things = ["Things to share"]
    let avc = UIActivityViewController(activityItems:things, applicationActivities:nil)
    avc.setValue("Subject title", forKey: "subject")
    avc.completionWithItemsHandler = {
        (s: String!, ok: Bool, items: [AnyObject]!, err:NSError!) -> Void in
    }

    self.presentViewController(avc, animated:true, completion:nil)
    if let pop = avc.popoverPresentationController {
        let v = sender as! UIView // sender would be the button view tapped, but could be any view
        pop.sourceView = v
        pop.sourceRect = v.bounds
    }

Answer 17

修复Swift 2.0

    if UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiom.Phone {
        self.presentViewController(activityVC, animated: true, completion: nil)
    }
    else {
        let popup: UIPopoverController = UIPopoverController(contentViewController: activityVC)
        popup.presentPopoverFromRect(CGRectMake(self.view.frame.size.width / 2, self.view.frame.size.height / 4, 0, 0), inView: self.view, permittedArrowDirections: UIPopoverArrowDirection.Any, animated: true)
    }

Answer 18

斯威夫特3：

class func openShareActions(image: UIImage, vc: UIViewController) {
    let activityVC = UIActivityViewController(activityItems: [image], applicationActivities: nil)
    if UIDevice.current.userInterfaceIdiom == .pad {
        if activityVC.responds(to: #selector(getter: UIViewController.popoverPresentationController)) {
            activityVC.popoverPresentationController?.sourceView = vc.view
        }
    }
    vc.present(activityVC, animated: true, completion: nil)
}

UIActivityViewController在iOS 8 iPad上崩溃

问题描述投票：272回答：18

18个回答

最新问题

UIActivityViewController在iOS 8 iPad上崩溃

问题描述 投票：272回答：18

18个回答

最新问题

问题描述投票：272回答：18