将视频分享到 Facebook

Question

我正在编写一个简单的测试应用程序，用于将视频从 iOS 上传到 Facebook。

我发现很难在网上找到 examples/tutorials 如何使用 Swift 执行此操作，因为 FacebookSDK 的所有文档都在 Objective-C.[=12= 中]

到目前为止，我有这个，它在我的 UI 上放置了一个共享按钮，但它看起来已禁用，据我所知，这是因为没有设置内容，但我看不出这是怎么可能的.

    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 returns 一个肯定包含 url 到视频的 NSURL（我已经将它打印到控制台并检查它指向我存储在较早的文件夹）。

看了社交框架，可惜不能用，好像只能分享照片，不能分享视频。

我使用的是最新版本的 Xcode、Swift 和 Facebook SDK。

Answer 1

我在 objective c 中做过这个，我也遇到过类似的问题。不知道这是否适用于 swift.

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。不是你的情况。

虽然你可以在最坏的情况下使用 FBSDKGraphRequest 和 /me/Videos

我了解到您尝试使用的这种分享视频的方式，可以直接从照片库中获取链接。正如您在 this example

中看到的

目前在objective-c中只有示例，希望对您有所帮助

- (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];
                    }
                });
             }];
        });
    });
}

您可以更改为 swift 语法，使用 Xcode 自动完成功能。

您可以使用语法 swift 和 this

来帮助自己

Answer 2

我在我的应用程序中使用了这段代码，对我来说效果很好。

此代码适用于 Objective-C，但您可以在将其转换为 swift 语法后在 swift 中使用相同的代码。

希望对您有所帮助。

尝试下面的代码。

-(void) uploadVideoOnFacebook 
{
    NSURL *pathURL;
    NSData *videoData;


    pathURL = [NSURL URLWithString:self.strUploadVideoURL];
    videoData = [NSData dataWithContentsOfURL:[NSURL URLWithString:self.strUploadVideoURL]];

    NSString *strDesc;
    strDesc = txtCaption.text;

    NSDictionary *videoObject = @{@"title": @"application Name",@"description": strDesc,[pathURL absoluteString]: videoData};
    FBRequest *uploadRequest = [FBRequest requestWithGraphPath:@"me/videos" parameters:videoObject HTTPMethod:@"POST"];
    [self.view setUserInteractionEnabled:NO];

    [uploadRequest startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
           if (!error)
               NSLog("Success");
           else
               NSLog("Error");
    }];
}

Answer 3

@AngryDuck

试试这个代码它会起作用

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 4

转换成swift3和4:- 试试这个

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 5

使用 SDK Facebook：

https://developers.facebook.com/docs/sharing/ios

视频 URL 视频 URL 必须是资产 URL。您可以获得视频资产 URL 例如来自 UIImagePickerController.

import FBSDKCoreKit
import FBSDKShareKit
import MobileCoreServices
import Photos

        func createAssetURL(url: URL, completion: @escaping (String) -> Void) {
            let photoLibrary = PHPhotoLibrary.shared()
            var videoAssetPlaceholder:PHObjectPlaceholder!
            photoLibrary.performChanges({
                let request = PHAssetChangeRequest.creationRequestForAssetFromVideo(atFileURL: url)
                videoAssetPlaceholder = request!.placeholderForCreatedAsset
            },
                completionHandler: { success, error in
                    if success {
                        let localID = NSString(string: videoAssetPlaceholder.localIdentifier)
                        let assetID = localID.replacingOccurrences(of: "/.*", with: "", options: NSString.CompareOptions.regularExpression, range: NSRange())
                        let ext = "mp4"
                        let assetURLStr =
                        "assets-library://asset/asset.\(ext)?id=\(assetID)&ext=\(ext)"

                        completion(assetURLStr)
                    }
            })
        }

        func shareFacebbok() {
            let content: FBSDKShareVideoContent = FBSDKShareVideoContent()
            let videoURLs = Bundle.main.url(forResource: "video", withExtension: "mp4")!
            createAssetURL(url: videoURLs) { url in
                let video = FBSDKShareVideo()
                video.videoURL = URL(string: url)
                content.video = video

                let shareDialog = FBSDKShareDialog()
                shareDialog.shareContent = content
                shareDialog.mode = .native
                shareDialog.delegate = self
                shareDialog.show()
            }
        }

将视频分享到 Facebook

Share a video to Facebook

ios

facebook-sdk-4.0

swift

swift2