Iphone Twitter发布错误

我试图在twitter上发帖，但它没有发布评论。 它显示已成功发布，但未完成。 任何人都能想到如何解决这个问题，或者API正在为此而改变

这是代码

    OAConsumer  *consumer = [[OAConsumer alloc] initWithKey:consumerKey secret:consumerSecret];
    OAMutableURLRequest *request = [[[OAMutableURLRequest alloc] initWithURL:url1 consumer:consumer token:nil realm:nil signatureProvider:nil] autorelease];
    if (!request) return;
    [request setHTTPMethod: @"POST"];
    [request setParameters: [NSArray arrayWithObject: [[[OARequestParameter alloc] initWithName: @"oauth_callback" value:kLinkedInCallbackUrl] autorelease]]];

    OADataFetcher *fetcher = [[[OADataFetcher alloc] init] autorelease];
    [fetcher fetchDataWithRequest:request delegate:self didFinishSelector: @selector(setRequestToken:withData:) didFailSelector: @selector(outhTicketFailed:data:)];

    NSString *appendURL;
    appendURL = [NSString stringWithFormat:@"?oauth_token=%@", _requestToken.key];
    NSURL *url2 = [NSURL URLWithString:[authorizeURL stringByAppendingString:appendURL]];

    //if (!_consumerKey && _consumerSecret) return nil;    // we need a valid request token to generate the URL

    request = [[[OAMutableURLRequest alloc] initWithURL:url2 consumer:consumer token:_requestToken realm:nil signatureProvider: nil] autorelease];

    [request setParameters:[NSArray arrayWithObject: [[[OARequestParameter alloc] initWithName: @"oauth_token" value:_requestToken.key] autorelease]]];

    //SET accessTOKEN key and secret
    fetcher = nil;
    fetcher = [[[OADataFetcher alloc] init] autorelease];
    [fetcher fetchDataWithRequest:request delegate:self didFinishSelector: @selector(setAccessToken:withData:) didFailSelector: @selector(outhTicketFailed:data:)];

    //Load WebView
   //   _webView.alpha = 100.0;
    [_webView loadRequest:request];

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使用mgtwitterengine发布应用程序中的推文。

如果您发布了一些显示当前所做工作的代码，那么答案将更加精确，而不仅仅是猜测。回复比回复更准确，但之前工作正常，但从上周开始就不起作用。API可能会改变吗？？