如何在Facebook上传/分享视频？

Question

我正在制作一个测试应用程序，我想在Facebook上发布视频。 我正在使用Facebook最新的sdk。 但是我无法在Facebook上发布它。

我的代码如下。

NSDictionary *parameters = [NSDictionary dictionaryWithObject:videoData forKey:@"CareAppDemo.mov"];

FBRequest *request = [FBRequest requestWithGraphPath:@"me/videos" parameters:parameters HTTPMethod:@"POST"];

[request startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                NSLog(@"result: %@, error: %@", result, error);
            }];

请帮我通过我的应用程序在Facebook上发布视频。

Answer 1

您需要先下载FacebookSDK，然后将以下框架添加到您的项目中

 FacebookSDK.framework, FBSDKLoginKit.framework, FBSDKShareKit.framework, Bolts.framework,FBSDKCoreKit.framework 

导入它们，并编写以下代码

if(![FBSDKAccessToken currentAccessToken])
    {
        FBSDKLoginManager *login1 = [[FBSDKLoginManager alloc]init];

        [login1 logInWithPublishPermissions:@[@"publish_actions"] handler:^(FBSDKLoginManagerLoginResult *result, NSError *error) {

            FBSDKShareVideo *video = [[FBSDKShareVideo alloc] init];

            video.videoURL = videoAssetURL;
            FBSDKShareVideoContent *content = [[FBSDKShareVideoContent alloc] init];
            content.video = video;

            [FBSDKShareDialog showFromViewController:self withContent:content delegate:nil];




        }];
    }
    else {
        FBSDKShareVideo *video = [[FBSDKShareVideo alloc] init];
        video.videoURL = videoAssetURL;
        FBSDKShareVideoContent *content = [[FBSDKShareVideoContent alloc] init];
        content.video = video;

        [FBSDKShareDialog showFromViewController:self withContent:content delegate:nil];




    }

视频网址videoURL必须是资产网址。 您可以从UIImagePickerController获取视频资产URL。

或录制视频，您可以采取以下措施

ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
[library writeVideoAtPathToSavedPhotosAlbum:[NSURL URLWithString:[[NSHomeDirectory() stringByAppendingPathComponent:@"Library/Caches"] stringByAppendingFormat:@"/current.mov"]] completionBlock:^(NSURL *assetURL, NSError *error)
 {

     videoAssetURL =assetURL;

 }];

有关更多详细信息，请使用https://developers.facebook.com/docs/sharing/ios

Answer 2

在FaceBook SDK 3.14.1上成功测试

建议： .plist文件中的3个属性

设置FacebookAppID，FacebookDisplayName，
URL类型 - >项目0-> URL方案设置为facebookappId前缀与fb 请参阅

-(void)shareOnFaceBook
{
    //sample_video.mov is the name of file
    NSString *filePathOfVideo = [[NSBundle mainBundle] pathForResource:@"sample_video" ofType:@"mov"];

    NSLog(@"Path  Of Video is %@", filePathOfVideo);
    NSData *videoData = [NSData dataWithContentsOfFile:filePathOfVideo];
    //you can use dataWithContentsOfURL if you have a Url of video file
    //NSData *videoData = [NSData dataWithContentsOfURL:shareURL];
    //NSLog(@"data is :%@",videoData);
    NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                               videoData, @"video.mov",
                               @"video/quicktime", @"contentType",
                               @"Video name ", @"name",
                               @"description of Video", @"description",
                               nil];

   if (FBSession.activeSession.isOpen)
   {
        [FBRequestConnection startWithGraphPath:@"me/videos"
                                 parameters:params
                                 HTTPMethod:@"POST"
                          completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                              if(!error)
                              {
                                  NSLog(@"RESULT: %@", result);
                                  [self throwAlertWithTitle:@"Success" message:@"Video uploaded"];
                              }
                              else
                              {
                                  NSLog(@"ERROR: %@", error.localizedDescription);
                                  [self throwAlertWithTitle:@"Denied" message:@"Try Again"];
                              }
                          }];
    }
    else
    {
        NSArray *permissions = [[NSArray alloc] initWithObjects:
                            @"publish_actions",
                            nil];
        // OPEN Session!
        [FBSession openActiveSessionWithPublishPermissions:permissions defaultAudience:FBSessionDefaultAudienceEveryone  allowLoginUI:YES
                                     completionHandler:^(FBSession *session,
                                                         FBSessionState status,
                                                         NSError *error) {
                                         if (error)
                                         {
                                             NSLog(@"Login fail :%@",error);
                                         }
                                         else if (FB_ISSESSIONOPENWITHSTATE(status))
                                         {
                                             [FBRequestConnection startWithGraphPath:@"me/videos"
                                                                          parameters:params
                                                                          HTTPMethod:@"POST"
                                                                   completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                                                                       if(!error)
                                                                       {
                                                                           [self throwAlertWithTitle:@"Success" message:@"Video uploaded"];

                                                                           NSLog(@"RESULT: %@", result);
                                                                       }
                                                                       else
                                                                       {
                                                                           [self throwAlertWithTitle:@"Denied" message:@"Try Again"];

                                                                           NSLog(@"ERROR: %@", error.localizedDescription);
                                                                       }

                                                                   }];
                                         }
                                     }];
        }
}

I GOT错误在App运行的第一次：

 The operation couldn’t be completed. (com.facebook.sdk error 5.)

它发生在Facebook正在进行时。 下次我打开我的应用程序，它工作正常，它始终是第一次。 在应用程序中尝试了一切，但它似乎在Facebook SDK方面。

看到com.facebook.sdk error 5原因很少：

• 会话未公开。 验证。
• Facebook已检测到您正在向系统发送垃圾邮件。 更改视频名称。
• Facebook使用SDK有一个定义的限制。 尝试使用其他应用。
• 错误的发布权限。 给publish_actions一个旋转。
• 还有很多....

Answer 3

在Facebook上传视频的最佳示例检查它

从下面链接下载，这是唯一的iPhone

Answer 4

获取发布权限

NSArray* permissions = [[NSArray alloc] initWithObjects:
                            @"publish_stream", nil];
    [facebook authorize:permissions delegate:self];
    [permissions release];

试试这个

- (void)fbDidLogin {
    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"sample" ofType:@"mov"];
    NSData *videoData = [NSData dataWithContentsOfFile:filePath];
    NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                   videoData, @"video.mov",
                                   @"video/quicktime", @"contentType",
                                   @"Video Test Title", @"title",
                                   @"Video Test Description", @"description",
                       nil];
    [facebook requestWithGraphPath:@"me/videos"
                         andParams:params
                     andHttpMethod:@"POST"
                       andDelegate:self];
}

Answer 5

这是旧线程，但对于所有未来的读者来说，这里是如何使用当前最新的facebook SDK（ v3.24.0 - September 10th 2015 ）。

- (IBAction)bntShareOnFacebookAction:(id)sender {

    if ([[FBSDKAccessToken currentAccessToken] hasGranted:@"publish_actions"]) {
        [self shareVideoOnFacebook];
    } else {
        FBSDKLoginManager *loginManager = [[FBSDKLoginManager alloc] init];
        [loginManager logOut];  //very important line for login to work
        [loginManager logInWithPublishPermissions:@[@"publish_actions"]
                handler:^(FBSDKLoginManagerLoginResult *result, NSError *error) {
                        if(!error) {
                            [self shareVideoOnFacebook];
                        } 
                    }];
    }
}

- (void) shareVideoOnFacebook {

    NSString *videoPath = @"/Documents/.../movie.mov";
    NSData *videoData = [NSData dataWithContentsOfURL:[NSURL fileURLWithPath:videoPath]];

    NSMutableDictionary *params = [NSMutableDictionary dictionaryWithCapacity:3L];

    [params setObject:videoData forKey:@"video_filename.MOV"];
    [params setObject:@"Title for this post." forKey:@"title"];
    [params setObject:@"Description for this post." forKey:@"description"];

    [[[FBSDKGraphRequest alloc] initWithGraphPath:@"/me/videos" parameters:params HTTPMethod:@"POST"]
     startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {
         if (!error) {
             //video posted
         }
     }];
}

Answer 6

如果您要上传/视频共享，则必须传递资产库URL以获取所选项目的原始版本。

URL e.g assets-library://asset/asset.MOV?id=18BC70A0-208A-4F03-A207-7D57C8863425&ext=MOV

如果你正在使用

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 

那你必须要通过

NSURL *url = [info objectForKey:UIImagePickerControllerReferenceURL];

如果您使用文档目录路径，则首先需要将视频保存到库中。 您必须创建URL链接资产库URL。

[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{

    [PHAssetChangeRequest creationRequestForAssetFromVideoAtFileURL:videoURL];

} completionHandler:^(BOOL success, NSError * _Nullable error) {

    if (success) {

        // Fetch Last saved video.
        PHFetchOptions *fetchOptions = [[PHFetchOptions alloc] init];
        fetchOptions.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"creationDate" ascending:false]];

        // Get video url.
        PHAsset *fetchResult = [PHAsset fetchAssetsWithMediaType:PHAssetMediaTypeVideo options:fetchOptions].firstObject;
        NSString *assetID = [fetchResult.localIdentifier substringToIndex:(fetchResult.localIdentifier.length - 7)];
        NSURL *assetURL = [NSURL URLWithString:[NSString stringWithFormat:@"assets-library://asset/asset.MOV?id=%@&ext=MOV", assetID]];

        // Share Video.
        FBSDKShareVideo *video = [[FBSDKShareVideo alloc] init];
        video.videoURL = assetURL;

        FBSDKShareVideoContent *content = [[FBSDKShareVideoContent alloc] init];
        content.video = video;

        FBSDKShareDialog *shareDialog = [[FBSDKShareDialog alloc] init];
        shareDialog.shareContent = content;
        shareDialog.delegate = (id)self;
        shareDialog.fromViewController = self;
        NSError * error = nil;
        BOOL validation = [shareDialog validateWithError:&error];
        if (validation) {
            dispatch_async(dispatch_get_main_queue(), ^{
                [shareDialog show];
            });
        } else {
            NSLog(@"%@", error.localizedDescription);
        }

    }

}];