ios - 使用 Facebook iOS SDK 3.x 将视频上传到 Facebook

Question

我找到了很多使用 facebook SDK 上传视频的解决方案，但没有一个有效(包括来自 facebook 开发者博客的信息)。这是我用来上传视频的代码。 “out_composed.mov”已成功创建，因为我可以将该视频保存在图库中或通过电子邮件发送。

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectoryPath = [paths objectAtIndex:0];
NSString* composedOutputPath = [documentsDirectoryPath stringByAppendingPathComponent:@"out_composed.mov"];
NSData *videoData = [NSData dataWithContentsOfFile:composedOutputPath];

NSMutableDictionary<FBGraphObject>* params = [FBGraphObject graphObject];
[params setDictionary:[NSMutableDictionary dictionaryWithObjectsAndKeys:
                       videoData, @"video.mov",
                       @"video/quicktime", @"contentType",
                       @"My awesome video", @"title", nil]];

if (!appDelegate.session.isOpen)
{
    [FBSession openActiveSessionWithPermissions:[NSArray arrayWithObjects:@"offline_access", @"publish_stream",@"user_videos",@"video_upload",nil] allowLoginUI:true completionHandler:^(FBSession *session, FBSessionState status, NSError *error)
                           {
                               FBRequest* uploadVideoRequest = [FBRequest requestForPostWithGraphPath:@"/me/videos" graphObject:params];
                               [uploadVideoRequest startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error)
                                {
                                    // The server returns "353 missing video file" here.
                                    if(error != nil) NSLog(@"%@",[error description]);
                                    else NSLog(@"Error: %@", error);
                                }];
                           }];
    appDelegate.session = [FBSession activeSession];
} else
{
    FBRequest* uploadVideoRequest = [FBRequest requestForPostWithGraphPath:@"/me/videos" graphObject:params];
    [uploadVideoRequest startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error)
     {
         if(error != nil) NSLog(@"%@",[error description]);
         else NSLog(@"Error: %@", error);
     }];
}

我得到的错误是:

Error Domain=com.facebook.sdk Code=5 "The operation couldn’t be completed. (com.facebook.sdk error 5.)" UserInfo=0x1fdc94a0 {com.facebook.sdk:ParsedJSONResponseKey={
    body =     {
        error =         {
            code = 353;
            message = "(#353) Missing video file";
            type = OAuthException;
        };
    };
    code = 400;
}, com.facebook.sdk:HTTPStatusCode=400}

我该如何解决这个问题？非常感谢!

平子

Answer 1

以下使用 3.0.8 SDK 对我有用(使用 -requestWithGraphPath:... 而不是 -requestForPostWithGraphPath:...):

NSDictionary *parameters = [NSDictionary dictionaryWithObject:videoData forKey:@"sample.mov"];
FBRequest *request = [FBRequest requestWithGraphPath:@"me/videos" parameters:parameters HTTPMethod:@"POST"];
[request startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
    NSLog(@"result: %@, error: %@", result, error);
}];

不过似乎缺少一种显示上传进度的方法。