how to display tweet after it was sent?

how to display tweet after it was sent?

I'm working on a twitter app and i want to immediately display tweet after
sending. I tried to use reloadData, but it didn't work. Can anyone help
me? Thank you!
Here's my code:
- (IBAction)postNewTweet:(id)sender {
if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter])
{
SLComposeViewController *tweetSheet = [SLComposeViewController
composeViewControllerForServiceType:SLServiceTypeTwitter];
[tweetSheet setInitialText:@""];
[self presentViewController:tweetSheet animated:YES completion:nil];
dispatch_async(dispatch_get_main_queue(), ^{
[self.tweetTableView reloadData];
});
}
else
{
UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle:@"Sorry"
message:@"You can't send a tweet right now,
make sure your device has an internet
connection and you have at least one Twitter
account setup"
delegate:self
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alertView show];
}
}