Gururaj T: Twitter iOS

-(void)TweetHighScore
{
    AppController * myDelegate = (((AppController*) [UIApplication sharedApplication].delegate));

    NSString *currOsVersion = [[UIDevice currentDevice] systemVersion];

    float sysver = [currOsVersion floatValue] ;

    if(sysver >= 6.0f)
    {
        NSString *string = [NSString stringWithFormat:@"Just scored %d in Whack-A-Quack game. Get it %@ ",highScore, kGameLink];

        SLComposeViewController*fvc = [SLComposeViewController
                                       composeViewControllerForServiceType:SLServiceTypeTwitter];
        [fvc setInitialText:string];
        [fvc addImage:[UIImage imageNamed:@"email.png"]];
        [fvc setCompletionHandler:^(SLComposeViewControllerResult result) {
            [myDelegate.navController dismissModalViewControllerAnimated:YES];

        }];

        [myDelegate.navController presentViewController:fvc animated:YES completion:^{
        }];
    }
    else if(sysver >= 5.0f)
    {
        AppController * app = (((AppController*) [UIApplication sharedApplication].delegate));

        TWTweetComposeViewController *tweetViewController = [[TWTweetComposeViewController alloc] init];

        NSString *string = [NSString stringWithFormat:@"Just scored %d in Temple Run. Get it %@ ",highScore, kGameLink];

        [tweetViewController addImage:[UIImage imageNamed:@"email.png"]];
        //        [tweetViewController addURL:[NSURL URLWithString:kGameLink]];

        [tweetViewController setInitialText:string];

        [tweetViewController setCompletionHandler:^(TWTweetComposeViewControllerResult result) {

            dispatch_async(dispatch_get_main_queue(), ^{

                {
                    if (result == TWTweetComposeViewControllerResultDone)
                    {
                        //successful
                        //[[NSNotificationCenter defaultCenter] postNotificationName:@"PPTweetSuccessful" object:nil];

                    }
                    else if(result == TWTweetComposeViewControllerResultCancelled)
                    {
                        //Cancelled
                    }
                }

                [app.navController dismissModalViewControllerAnimated:YES];

                [tweetViewController release];
            });

        }];

        [app.navController presentModalViewController:tweetViewController animated:YES];
    }
    else
    {
        UIAlertView* alert= [[[UIAlertView alloc] initWithTitle:@"Twitter App is not found!" message: @"Ooops! You need to update your iOS version to 5 or higher to share on Twitter"
                                                       delegate: NULL cancelButtonTitle: @"Ok" otherButtonTitles: NULL] autorelease];

        [alert show];
    }

}