将视频分享给Facebook - Swift IOS

Question

我正在写一个应用程序，试着把视频上传到Facebook。理想情况下，我想从Parse中提取视频，并将其转换为NSURL。现在，我正在尝试使用ImagePicker来选择用于共享的照片。

现在我看到了ImagePicker，但我有两个错误。1)只有照片显示在滚动中，2)在我的didFinishPickingMediaWithInfo函数中，我得到了一个‘function同时展开可选值’。对于第1期，我已经将UIImagePickerControllerSourceType更改为.PhotoLibrary，但它仍然省略了视频。

  override func viewWillAppear(animated: Bool) {
     let profileButton = UIBarButtonItem(image: img, style: .Done, target: self, action: "videoBtnClicked")
     self.navigationItem.setRightBarButtonItem(profileButton, animated: true)

  func videoBtnClicked(){
      if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.SavedPhotosAlbum){
          print("Video capture")
          imagePicker.delegate = self
          imagePicker.sourceType = UIImagePickerControllerSourceType.SavedPhotosAlbum
          imagePicker.allowsEditing = false
          self.presentViewController(imagePicker, animated: true, completion: nil)
        }
    }

  func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
      let video : FBSDKShareVideo = FBSDKShareVideo()
          //error occurs line below here       
          video.videoURL = info[UIImagePickerControllerMediaURL] as! NSURL
      let content : FBSDKShareVideoContent = FBSDKShareVideoContent()
      content.video = video
    }

Answer 1

1. 只适用于照片问题

UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.SavedPhotosAlbum){ videoBtnClicked(){ if videoBtnClicked(“视频捕捉”) imagePicker.delegate = self imagePicker.sourceType = UIImagePickerControllerSourceType.SavedPhotosAlbum **imagePicker.mediaTypes = "public.movie"** imagePicker.allowsEditing = false self.presentViewController(imagePicker，动画:真，完成:0)}}

1. 对于第二个问题，您应该先检查url。

func imagePickerController(选择器: UIImagePickerController，didFinishPickingMediaWithInfo信息: String : AnyObject) {如果让url = video.videoURL{ video.videoURL = infoUIImagePickerControllerMediaURL as，那么FBSDKShareVideo = FBSDKShareVideo() //错误出现在下面一行？NSURL内容: FBSDKShareVideoContent = FBSDKShareVideoContent() content.video =视频}}