相关疑难解决方法(0)

在SLComposeViewController用于打开Twitter或Facebook共享表的时间内,在日志中看到此错误消息,尽管不一致.我没有使用任何新的iOS 8 API,只是测试iOS 8上的现有代码.我看到其他人遇到了这个问题,甚至在使用Cocoa Touch SDK中的其他模态视图控制器时也发生了崩溃.

LaunchServices:invalidationHandler被调用

是否有新的防护措施,与SLComposeViewController和UIActivityViewControlleriOS中8？还有什么要考虑的吗？

在iOS8上,我正在使用UIActivityViewController与Facebook/Twitter等共享UIImage.它似乎工作正常,但今天它在我的iPad上运行代码时突然崩溃了.但是,它仍然可以在模拟器中按预期工作.

我的代码:

UIActivityViewController *controller =
[[UIActivityViewController alloc]
 initWithActivityItems:@[text, url, myImage]
 applicationActivities:nil];

[self presentViewController:controller animated:YES completion:nil];

崩溃后,Xcode吐出:

发现的扩展名:{({id = com.apple.share.Facebook.post},{id = com.apple.share.Twitter.post},{id = com.apple.share.TencentWeibo.post},{id = com.apple.share.SinaWeibo.post})} for attributes:{NSExtensionActivationRule = {extensionItems =({attachments =({registeredTypeIdentifiers =("public.image");},{registeredTypeIdentifiers =("public.plain-text" );},{registeredTypeIdentifiers =("public.url");});}); }; NSExtensionPointName =("com.apple.share-services","com.apple.ui-services","com.apple.services"); 2014-08-07 21:38:59.208 collageTest [279:11021] LaunchServices:invalidationHandler被称为2014-08-07 21:38:59.212 collageTest [279:11016]发现的扩展:{({id = com.apple.share .Flickr.post},{id = com.apple.mobileslideshow.StreamShareService},{id = com.apple.share.Twitter.post},{id = com.apple.share.Facebook.post},{id = com .apple.share.Vimeo.post},{id = com.apple.share.SinaWeibo.post},{id = com.apple.share.TencentWeibo.post})} for attributes:{NSExtensionPointName ="com.apple.共享服务"; 2014-08-07 21:38:59.216 collageTest [279:11021] LaunchServices:invalidationHandler被调用

我已经在这里和这里查看了相关的问题,并且我已经实现了建议的答案但无济于事.

我在UIToolbar上有一个UIBarButtonItem,发送操作的连接到btnTBAction_touch:

在ViewController的类头中,我有:

@property (nonatomic, strong) UIActivityViewController *activityViewController;

类实现中的相关方法:

- (IBAction)btnTBAction_touch:(id)sender {
    NSString *string = @"Some string";
    NSURL *url = [[NSURL alloc] initWithString:@"http://www.google.com"];
    UIImage *image = [UIImage imageNamed:@"default.png"];
    self.activityViewController = [[UIActivityViewController alloc] 
        initWithActivityItems:@[string, url, image] applicationActivities:nil];

    if ([self.activityViewController respondsToSelector:@selector(popoverPresentationController)])
    {
        UIPopoverPresentationController *presentationController = [self.activityViewController
            popoverPresentationController];
        presentationController.sourceView = sender;
    }

    [self presentViewController:self.activityViewController animated:YES completion:nil];
}

当我触摸调用上述方法的按钮时,在物理设备上以调试模式运行时,我在调试控制台中获得以下内容

2014-09-19 09:43:31.635 TestApp[1878:237873] LaunchServices: invalidationHandler called
2014-09-19 09:43:31.644 TestApp[1878:237814] LaunchServices: invalidationHandler called

但是,与相关问题不同,我的应用程序在发生这种情况时不会崩溃,应用程序继续正常运行并且UIActivityViewController正确显示...但我宁愿修复错误而不是说它已经足够好了.

另外,我尝试使用以下方法对上述方法进行了一些排列:

presentationController.sourceView = self.view;

presentationController.sourceRect = self.view.frame;

这些都没有帮助解决问题. …