Try this Methods...
UIAlertView * alertView = [[UIAlertView alloc] initWithTitle:@"Get Ready!" message:nil delegate:nil cancelButtonTitle:nil otherButtonTitles:nil];;
[alertView show];
[self performSelector:@selector(dismissReadyAlert:) withObject:alertView afterDelay:3.0];
-(void)dismissReadyAlert:(UIAlertView *)alertView
{
[alertView dismissWithClickedButtonIndex:0 animated:NO];
alertView.title = @"Your game is started!";
[alertView show];
[self performSelector:@selector(dismissStartAlert:) withObject:alertView afterDelay:2.0];
}
-(void)dismissStartAlert:(UIAlertView *)alertView
{
[alertView dismissWithClickedButtonIndex:0 animated:YES];
}
Thanks!