如何显示带有可用共享选项的默认 iOS 6 共享操作表

发布于11月22日

一些应用程序在iOS 6中显示了带有共享选项的默认行动单.

Social Framework只有两个类，一个用于 compose ，另一个用于请求.

不过，我发现的是关于使用SLComposeViewController为特定服务编写的内容，在展示之前，我必须手动查询该服务是否可用.然后我还要用自己的图标创建自己的行动表.

这些应用程序如何在iOS 6中显示此默认共享选项操作表？或者他们使用的是开放源码框架？

Objective-C

- (void)shareText:(NSString *)text andImage:(UIImage *)image andUrl:(URL *)url
{
    NSMutableArray *sharingItems = [NSMutableArray new];

    if (text) {
        [sharingItems addObject:text];
    }
    if (image) {
        [sharingItems addObject:image];
    }
    if (url) {
        [sharingItems addObject:url];
    }

    UIActivityViewController *activityController = [[UIActivityViewController alloc] initWithActivityItems:sharingItems applicationActivities:nil];
    [self presentViewController:activityController animated:YES completion:nil];
}

Swift

func share(sharingText: String?, sharingImage: UIImage?, sharingURL: URL?) {
    let sharingItems:[AnyObject?] = [
                                        sharingText as AnyObject,
                                        sharingImage as AnyObject,
                                        sharingURL as AnyObject
                                    ] 
    let activityViewController = UIActivityViewController(activityItems: sharingItems.compactMap({$0}), applicationActivities: nil)
    if UIDevice.current.userInterfaceIdiom == .pad {
        activityViewController.popoverPresentationController?.sourceView = view
    }
    present(activityViewController, animated: true, completion: nil)
}