使用UIActivityViewController附加本地视频

Question

我正在编写一个拥有本地保存视频(.mov)的iOS应用程序.我正试图通过UIActivityViewController附加视频.它适用于电子邮件.视频已成功附加和发送.保存到相机胶卷时也可以使用.
附加到Messages时它不起作用.仅显示文本.Twitter和Facebook甚至都没有出现.当我删除视频附件时,Twitter和Facebook终于开始显示.我真的不太关心消息,但有人能告诉我Facebook和Twitter没有出现的原因吗？

继承我的代码:

- (IBAction) shareVideo {
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *URL = [documentsDirectory stringByAppendingPathComponent:demoName];

    NSString* someText = demoName;
    NSURL *urlToShare = [NSURL fileURLWithPath:URL isDirectory:NO];
    NSArray* dataToShare = @[someText, urlToShare];

    UIActivityViewController* activityViewController =
    [[UIActivityViewController alloc] initWithActivityItems:dataToShare
                                      applicationActivities:nil];
    activityViewController.excludedActivityTypes = @[UIActivityTypePrint,UIActivityTypeCopyToPasteboard,UIActivityTypeAssignToContact];

    activityViewController.completionHandler = ^(NSString *activityType, BOOL completed) {
        //if (completed) {
        [self dismissViewControllerAnimated:YES completion:nil];
        //}
    };

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

Answer 1

其他答案已过时.这有效:

    @IBAction func didTapShare(sender: AnyObject) {
    let videoURL = NSURL(fileURLWithPath:localVideoPath)
    let activityItems = [videoURL, "Check this out!" ]
    let activityController = UIActivityViewController(activityItems: activityItems, applicationActivities: nil)

    activityController.popoverPresentationController?.sourceView = self.view
    activityController.popoverPresentationController?.sourceRect = self.view.frame

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

Answer 2

在 iOS 6 或更低版本中，您无法在 Facebook、Twitter 或短信上分享视频。仅适用于 iOS7。

另外，请查看/sf/answers/1414812241/以获取您的信息。