将视频分享给Facebook

Question

我正在编写一个简单的测试应用程序来从iOS上传一个视频到Facebook。

我发现很难在网上找到关于如何使用Swift的示例/教程，因为FacebookSDK的所有文档都在Objective中。

到目前为止，我在UI上设置了一个共享按钮，但它看起来是禁用的，据我所读到，这是因为没有内容集，但我不知道这是怎么可能的。

    let video_content : FBSDKShareVideoContent = FBSDKShareVideoContent()

    video_content.video = FBSDKShareVideo(videoURL: getVideoURL())

    let button : FBSDKShareButton = FBSDKShareButton()
    button.shareContent = video_content

    button.frame = CGRectMake((UIScreen.mainScreen().bounds.width - 100) * 0.5, 50, 100, 25)
    self.view.addSubview(button)

我的getVideoURL()函数返回一个NSURL，其中肯定包含视频的url (我已经将它打印到控制台，并检查它指向我先前存储在文件夹中的视频)。

我看了一下社会框架，可惜我不能使用它，因为它似乎只用于分享照片，不能分享视频。

我使用的是最新版本的Xcode、Swift和Facebook。

Answer 1

@AngryDuck

试试这段代码，它会起作用的

func uploadVideoOnFacebook() {
    var pathURL: NSURL
    var videoData: NSData
    pathURL = NSURL(string: self.strUploadVideoURL)!
    videoData = NSData.dataWithContentsOfURL(NSURL(string: self.strUploadVideoURL)!)
    NSString * strDesc
    strDesc = txtCaption.text!
    var videoObject: [NSObject : AnyObject] = ["title": "application Name", "description": strDesc, pathURL.absoluteString(): videoData]
    var uploadRequest: FBRequest = FBRequest(graphPath: "me/videos", parameters: videoObject, HTTPMethod: "POST")
    self.view!.userInteractionEnabled = false
    uploadRequest.startWithCompletionHandler({(connection: FBRequestConnection, result: AnyObject, error: NSError) -> Void in
        if !error {
            NSLog("Success")
        }
        else {
            NSLog("Error")
        }
    })
}

Answer 2

将转换为this 3和4 :- 尝试此

func uploadVideoOnFacebook() {
        var pathURL: URL
        var videoData: Data
        pathURL = URL(string: "Your video url string")!
        do {
            videoData = try Data(contentsOf: URL(string: "Your video url string")!)
            print(videoData)
            var strDesc : String
            strDesc = ""
            let videoObject: [String : Any] = ["title": "application Name", "description": strDesc, pathURL.absoluteString: videoData]
            let uploadRequest: FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me/videos", parameters: videoObject, httpMethod: "POST")
            self.view!.isUserInteractionEnabled = false
            uploadRequest.start(completionHandler: {(connection: FBSDKGraphRequestConnection, result: AnyObject, error: NSError) -> Void in
                if error == error {
                    NSLog("Error")

                }
                else {
                    NSLog("Success")
                }
            } as! FBSDKGraphRequestHandler)
        } catch {
            print(error)
        }

    }

Answer 3

我在目标c中这样做过，我也遇到了类似的问题。不知道这对斯威夫特是否有效。

问题是，如果出于某种原因，视频必须存储在NSDocumentDirectory或NSTemporaryDirectory中，这样她才能工作。如果是你的案子就不会了。

尽管您可以在最坏的情况下使用FBSDKGraphRequest和/me/视频

我已经看到，这种分享视频的方式，你尝试使用，直接从照片库获得链接。正如您在这个例子中所看到的

目前在objective-c中只有一个例子，我希望这能帮助你

- (void)uploadVideoWithoutSettingsCredentials:(NSURL *)videoUrl withTitle:(NSString *)title withDesc:(NSString *)desc withPrivacy:(NSString *)privacy
{
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH,0), ^{
        NSError * error = nil;

        NSData * videoData = [NSData dataWithContentsOfURL:videoUrl options:0 error:&error];
        NSMutableDictionary *params = [NSMutableDictionary dictionaryWithCapacity:4L];
        [params setObject:videoData forKey:[NSString stringWithFormat:@"%@.MOV",title]];
        [params setObject:desc forKey:@"description"];

        NSString *privacyString = @"EVERYONE";
        if (privacy.length > 0)
            privacyString = privacy;

        NSDictionary *privacyDict = [[NSDictionary alloc] initWithObjectsAndKeys: privacyString, @"value", nil];
        [params setObject:[Utils objectToJsonString:privacyDict] forKey:@"privacy"];
        dispatch_async(dispatch_get_main_queue(), ^{
            [[[FBSDKGraphRequest alloc] initWithGraphPath:@"/me/videos" parameters:params HTTPMethod:@"POST"] startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {

                NSLog(@"RESPONSE!!! /me/videos");
                NSLog(@"result %@",result);
                NSLog(@"error %@",error);

                dispatch_async(dispatch_get_main_queue(), ^{
                    if (!error) {
                        [[[UIAlertView alloc] initWithTitle:@"Success" message:@"Your clip was posted!" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles: nil] show];
                    } else {
                        [[[UIAlertView alloc] initWithTitle:@"Error!" message:[error localizedDescription] delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles: nil] show];
                    }
                });
             }];
        });
    });
} 

您可以使用Xcode自动完成功能更改为“快速新税”。

您可以在使用这时使用快速语法帮助自己。