iOS8 - 如何显示默认的共享选项？

Question

我希望能够使用默认的“分享到其他服务”菜单，以便可以分享到Twitter、Facebook、电子邮件等平台。

我不知道如何从我的应用程序中显示此视图——我该怎么做？

- Erik Sapir

---

可能是 UIActivityViewController。 - rmaddy

Answer 1

您可以使用简单的活动控制器来展示默认的分享应用，如下：

 NSArray *activityItems = [NSArray arrayWithObjects:shareString, shareImage, shareUrl, nil];
 UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];
 activityViewController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;

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

你也可以使用它的完成处理程序：

[activityViewController setCompletionHandler:^(NSString *act, BOOL done)
     {
               //Code here when the action performed.

     }];

这将显示所有默认共享应用程序。

- Esha

Answer 2

这里提供一个适用于iPhone和iPad的“分享”弹出窗口解决方案，它可以从UIBarButtonItem触发。

// "Share" action
- (IBAction)share:(UIBarButtonItem *)sender {
    NSString* title = "Content Title";
    NSString* link = "http://example.com/content.url";
    NSArray* dataToShare = @[title, link];

    UIActivityViewController* activityViewController =
    [[UIActivityViewController alloc] initWithActivityItems:dataToShare
                                      applicationActivities:nil];


    // This is key for iOS 8+
    activityViewController.popoverPresentationController.barButtonItem = sender; 

    [self presentViewController:activityViewController
                       animated:YES
                     completion:^{}];
}

- eduludi

Answer 3

这是一个简单的例子：

这里是一个段落。

let activityViewController = UIActivityViewController(activityItems: ["Share Me!"], applicationActivities: nil)
activityViewController.completionWithItemsHandler = { [weak self] activityType, completed, returnedItems, activityError in
  // Note: you won't need returnedItems in most cases 
  // It is included in this example for completion's sake
}
present(activityViewController, animated: true, completion: nil)

这里提供了有关完成处理程序的完整文档： https://developer.apple.com/documentation/uikit/uiactivityviewcontrollercompletionwithitemshandler

- Ilias Karim