小编use*_*878的帖子

我在ViewController.m中写得很好,但是当我在MyScene类中编写它时,我得到错误:'MyScene'没有可见的@interface声明选择器'presentViewController:animated:completion:'

   if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter])
    {
    SLComposeViewController *tweetSheet = [SLComposeViewController
    composeViewControllerForServiceType:SLServiceTypeTwitter];
    [tweetSheet setInitialText:@"text"];
    [self presentViewController:tweetSheet animated:YES completion:nil];
    }