Question

我正尝试使用gdata-objectivec-client中发布的代码段，使用this thread库对YouTube视频进行评论;复制如下：

- (void)addCommentTitle:(NSString *)commentTitle
            text:(NSString *)commentContent
            toVideo:(GDataEntryYouTubeVideo *)entry {
    GDataComment *commentObj = [entry comment];
    GDataFeedLink *feedLink = [commentObj feedLink];
    NSURL *feedURL = [feedLink URL];
    if (feedURL) {
        // fetch the comment feed for the video
        GDataServiceGoogleYouTube *service = [self youTubeService];
        [service fetchFeedWithURL:feedURL
                completionHandler:^(GDataServiceTicket *ticket, GDataFeedBase *commentFeed, NSError *error) {
                    // callback
                    //
                    // insert a new comment into the comment feed
                    if (error == nil) {
                        GDataEntryYouTubeComment *newCommentEntry = [GDataEntryYouTubeComment commentEntry];
                        [newCommentEntry setTitleWithString:commentTitle];
                        [newCommentEntry setContentWithString:commentContent];

                        NSURL *postURL = [[commentFeed postLink] URL];
                        [service fetchEntryByInsertingEntry:newCommentEntry
                                                 forFeedURL:postURL
                                          completionHandler:^(GDataServiceTicket *ticket, GDataEntryBase *entry, NSError *error) {
                                              // callback
                                              if (error == nil) {
                                                  // succeeded
                                              }
                                          }];
                    }
                }];
        }
    }

但我总是得到以下例外：

*** Assertion failure in -[GDataObject setContentStringValue:](), XXXXXXXX/GData/BaseClasses/GDataObject.m:2353
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'GDataEntryYouTubeComment setting undeclared content value'

幸运的是，我设法通过在评论内容设置之前添加新的呼叫来消除这种情况：

GDataEntryYouTubeComment* newCommentEntry = [GDataEntryYouTubeComment commentEntry];
[newCommentEntry addContentValueDeclaration];    // <--- this method does the trick
[newCommentEntry setTitleWithString:commentTitle];
[newCommentEntry setContentStringValue:commentContent];

但它仍然不正常，因为请求现在从服务器反弹并出现此错误：

serviceBase:<GDataServiceGoogleYouTube: 0x7a73eb0>
objectFetcher:GTMHTTPFetcher 0x7c75b20 (https://gdata.youtube.com/feeds/api/videos/XXXXXXXXXX/comments)
failedWithStatus:400
data:<errors xmlns='http://schemas.google.com/g/2005'><error><domain>GData</domain><code>ParseException</code><internalReason>[Line 2, Column 514, element entry] No converter for type class java.lang.Void</internalReason></error><error><domain>GData</domain><code>missingConverter</code><internalReason>No converter for type class java.lang.Void</internalReason></error></errors>

还有其他人遇到过这个问题吗？这是我方或Google方面的错误吗？

Answer 1

原来上面的代码是正确的，在我的代码中拼写错误

[newCommentEntry setContentWithString:commentContent];

并使用

[newCommentEntry setContentStringValue:commentContent];

代替。现在它工作正常。

使用GData ObjC客户端库向YouTube发布评论失败

1 个答案: