Question

I’m developing a iOs 5 app (View in App Store) with native Twitter integration recent on iOs 5. I’m using this code for taking a screen capture of the app:

     if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)])
        UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, NO, [UIScreen mainScreen].scale);
    else
        UIGraphicsBeginImageContext(self.view.bounds.size);

    // retrieve the current graphics context
    CGContextRef context = UIGraphicsGetCurrentContext();

    // render view into context
    [self.view.layer renderInContext:context];

    // create image from context
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    // save image to photo album
    UIImageWriteToSavedPhotosAlbum(image,
                                   self,
                                   @selector(image:didFinishSavingWithError:contextInfo:),
                                   @"image.png"); 
 `

I would like that the user could automatically share on Twitter the screen capture. For sharing on Twitter I’m using that:

TWTweetComposeViewController *twitter = [[TWTweetComposeViewController alloc] init];
                           [twitter setInitialText:[NSString stringWithFormat:@"Final score %@: %d vs. %@: %d ",intnomlocal, puntsl, intnomvisitant, puntsv]];



 //[twitter addImage:[UIImage imageNamed:@"image"]];
 //[twitter addURL:[NSURL URLWithString:@"http://www.erwinzwart.com"]];



    [self presentViewController:twitter animated:YES completion:nil];

    twitter.completionHandler = ^(TWTweetComposeViewControllerResult res) {

        if(res == TWTweetComposeViewControllerResultDone)
        {

            UIAlertView* alertView = [[UIAlertView alloc] initWithTitle:@"Done!" message:@"Your tweet was send" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];

            [alertView show];


        }else if(res == TWTweetComposeViewControllerResultCancelled)
        {

            UIAlertView* alertView = [[UIAlertView alloc] initWithTitle:@"Cancelled" message:@"Your tweet wasn't send" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];

            [alertView show];

        }

        [self dismissModalViewControllerAnimated:YES];

    };

How can I fuse those two codes. I mean, that when a button pressed, make screen capture, retain it and share it on the native Twitter above. Thanks!!!

Answer 1

You can just put them under each other, in the order they are now. In the addImage:-method, point to image, and it should work just fine. Your first code creates a UIImage and stores it to the users photolibrary, so you can use the UIImage in the twitter-code below.