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这就是我所做的

• 在 facebook 上创建了一个应用程序
• 安装了具有所有要求的 FB SDK
• 通过登录按钮登录用户
• 现在我正在尝试使用此处提供的代码发布此威胁 How to Post to Facebook on iOS 6 in Objective-C using ACAccountStore class

但是什么也没发生。我错过了一步吗？

这是我正在使用的代码

 if([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook]) //check if Facebook Account is linked
    {
      mySLComposerSheet = [[SLComposeViewController alloc] init]; //initiate the Social Controller
        mySLComposerSheet = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook]; //Tell him with what social plattform to use it, e.g. facebook or twitter
                [mySLComposerSheet setInitialText:[NSString stringWithFormat:@"Test",mySLComposerSheet.serviceType]]; //the message you want to post
       [mySLComposerSheet addImage:yourimage]; //an image you could post
        //for more instance methodes, go here:https://developer.apple.com/library/ios/#documentation/NetworkingInternet/Reference/SLComposeViewController_Class/Reference/Reference.html#//apple_ref/doc/uid/TP40012205
        [self presentViewController:mySLComposerSheet animated:YES completion:nil];
    }
    [mySLComposerSheet setCompletionHandler:^(SLComposeViewControllerResult result) {
        NSString *output;
        switch (result) {
            case SLComposeViewControllerResultCancelled:
                output = @"Action Cancelled";
                break;
            case SLComposeViewControllerResultDone:
                output = @"Post Successfull";
                break;
            default:
                break;
        } //check if everything worked properly. Give out a message on the state.
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Facebook" message:output delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
        [alert show];
    }];

Answer 1

您的setInitialText 方法不正确。 如果使用stringWithFormat发布serviceType，则需要在方法中加上“%@”，否则没有什么可说的出现。

简而言之，只需更改：

[mySLComposerSheet setInitialText:[NSString stringWithFormat:@"Test",mySLComposerSheet.serviceType]];

到：

[mySLComposerSheet setInitialText:[NSString stringWithFormat:@"Test %@",mySLComposerSheet.serviceType]];