iOS 版 GData Youtube 上传崩溃

Question

我正在尝试使用 GData Objective C 项目 v1.12.0 将视频上传到 youtube。我按照以下指南将 GData 与我的项目链接起来： http://mischneider.net/?p=377#comment-1277

全部似乎链接正确，但我不断收到此错误消息：

2011-06-23 15:06:30.729[79217:207] * -GDataServiceBase fetchObjectWithURL:objectClass:objectToPost:ETag:httpMethod:delegate:didFinishSelector:completionHandler:retryInitationValue:ticket: 中断言失败/Users/aalesia88/Desktop/VOKAL/Development/SSB-Youtube/GData/BaseClasses/GDataServiceBase.m:603 2011-06-23 15:06:30.731[79217:207] * 由于未捕获的异常“NSInternalInconsistencyException”而终止应用程序，原因：“需要 GDataHTTPUploadFetcher”

这是我在调用上传过程时使用的方法：

- (GDataServiceGoogleYouTube *)youTubeService 
{
    GDataServiceGoogleYouTube* service = nil;

    if (!service) {
        service = [[GDataServiceGoogleYouTube alloc] init];

        [service setShouldCacheDatedData:YES];
        [service setServiceShouldFollowNextLinks:YES];
        [service setIsServiceRetryEnabled:YES];
    }

    SSBYoutubeCredentials *currentUser = [SSBYoutubeCredentials getCurrentUser];
    NSString *username = currentUser.username;
    NSString *password = currentUser.password;

    if ([username length] > 0 && [password length] > 0) {
        [service setUserCredentialsWithUsername:username
                                       password:password];
    } else {
        // fetch unauthenticated
        [service setUserCredentialsWithUsername:nil
                                       password:nil];
    }

    NSString *devKey = DEVELOPER_KEY;
    [service setYouTubeDeveloperKey:devKey];

    return service;
}

- (void)setUploadTicket:(GDataServiceTicket *)ticket 
{
    if (uploadTicket != nil) {
        [uploadTicket release];
    }

    uploadTicket = [ticket retain];
}

- (void)uploadVideoFile 
{    
    NSString *devKey = DEVELOPER_KEY;

    GDataServiceGoogleYouTube *service = [self youTubeService];
    [service setYouTubeDeveloperKey:devKey];

    SSBYoutubeCredentials *currentUser = [SSBYoutubeCredentials getCurrentUser];
    NSString *username = currentUser.username;

    NSURL *url = [GDataServiceGoogleYouTube youTubeUploadURLForUserID:username];

    // load the file data
    NSString *path;
#if !TARGET_IPHONE_SIMULATOR
    path = self.videoPath;
#else
    path = [[NSBundle mainBundle] pathForResource:@"Movie" ofType:@"m4v"];;
#endif
    NSData *data = [NSData dataWithContentsOfFile:path];
    NSString *filename = [path lastPathComponent];

    // gather all the metadata needed for the mediaGroup
    NSString *titleStr = self.trick;
    GDataMediaTitle *title = [GDataMediaTitle textConstructWithString:titleStr];

    NSString *categoryStr = @"SSB";
    GDataMediaCategory *category = [GDataMediaCategory mediaCategoryWithString:categoryStr];
    [category setScheme:kGDataSchemeYouTubeCategory];

    NSString *descStr = self.description;
    GDataMediaDescription *desc = [GDataMediaDescription textConstructWithString:descStr];

    NSString *keywordsStr = @"SuperShredBros";
    GDataMediaKeywords *keywords = [GDataMediaKeywords keywordsWithString:keywordsStr];

    BOOL isPrivate = NO;

    GDataYouTubeMediaGroup *mediaGroup = [GDataYouTubeMediaGroup mediaGroup];
    [mediaGroup setMediaTitle:title];
    [mediaGroup setMediaDescription:desc];
    [mediaGroup addMediaCategory:category];
    [mediaGroup setMediaKeywords:keywords];
    [mediaGroup setIsPrivate:isPrivate];

    NSString *mimeType = [GDataUtilities MIMETypeForFileAtPath:path
                                               defaultMIMEType:@"video/mp4"];

    // create the upload entry with the mediaGroup and the file
    GDataEntryYouTubeUpload *entry;
    entry = [GDataEntryYouTubeUpload uploadEntryWithMediaGroup:mediaGroup
                                                          data:data
                                                      MIMEType:mimeType
                                                          slug:filename];


    SEL progressSel = @selector(ticket:hasDeliveredByteCount:ofTotalByteCount:);
    [service setServiceUploadProgressSelector:progressSel];

    GDataServiceTicket *ticket;
    ticket = [service fetchEntryByInsertingEntry:entry
                                      forFeedURL:url
                                        delegate:self
                                        didFinishSelector:@selector(uploadTicket:finishedWithEntry:error:)];

    HUD = [[MBProgressHUD alloc] initWithView:self.navigationController.view];
    [self.navigationController.view addSubview:HUD];
    HUD.delegate = self;
    HUD.mode = MBProgressHUDModeDeterminate;
    HUD.labelText = @"Uploading...";

    [self setUploadTicket:ticket];
}

如果有人对此有任何见解问题将会非常有帮助。

谢谢， 安东尼

Answer 1

该消息来自 GDataServiceBase.m。它表明 GTMHTTPUploadFetcher 类未链接到您的应用程序。

由于类文件未在调试或发布构建目标中链接，或者由于未设置预处理器定义 GDATA_INCLUDE_YOUTUBE_SERVICE，该类可能会丢失，如 http://code.google.com/p/gdata-objectivec-client/wiki/BuildingTheLibrary

Answer 2

是的，这似乎是一个链接问题。我按照该链接上的说明直接编译到我的代码中，并删除了我不需要的类，例如 googledocs。一旦我这样做了，一切都构建良好，我就可以上传了。

感谢您的帮助。