问使用社交框架通过iOS 6应用程序共享内容，iOS设备说？

EN

- (IBAction)doFacebook:(id)sender{
//check to see if facebook account exists
if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook]) {

    // Create the view controller defined in the .h file

    fb=[SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];

    // make the default string
    NSString *FBString= [NSString
                         stringWithFormat:@"%@\r via #GibberishGenerator", gibText.text];
    [fb setInitialText:FBString];
    // show the controller
    [self presentViewController:fb animated:YES completion:nil];

    }
}