Adding NSData attachment to Twitter as an image post - objective-c

Question

Currently my app gives the option to save to device, or email, the latter attaching the image automatically to the mail, I am looking to add a post to twitter option, simply attaching the image and posting to Twitter, I have done this a few times with other apps, but cannot seem to get this one working.
Here is the process for email;
-(void)displayComposerSheet
{
MFMailComposeViewController *mail = [[MFMailComposeViewController alloc] init];
mail.mailComposeDelegate = self;
[mail setSubject:#""];
NSString* path =[NSHomeDirectory() stringByAppendingPathComponent:#"Documents/email.png"];
[mSplashView SaveResultImage:path];
[mail addAttachmentData:[NSData dataWithContentsOfFile:path] mimeType:#"image/png" fileName:#"Attached image"];
NSString *msg = [NSString stringWithFormat:#"I made this image!", [UIDevice currentDevice].model];
NSString* mailcontent = [NSString stringWithFormat:#"<br> %# <br>", msg];
[mail setMessageBody:mailcontent isHTML:YES];
[self presentModalViewController:mail animated:YES];
[mail release];
}
I am struggling to see how I can use similar to attach the image to Twitter, I currently use this code, but it crashes when attempting to post;
TWTweetComposeViewController *twitter = [[TWTweetComposeViewController alloc] init];
[self presentViewController:twitter animated:YES completion:nil];
NSString* path =[NSHomeDirectory() stringByAppendingPathComponent:#"Documents/email.png"];
[mSplashView SaveResultImage:path];
[twitter setInitialText:#"I made this image!"];
[twitter addURL:[NSData dataWithContentsOfFile:path]];
twitter.completionHandler = ^(TWTweetComposeViewControllerResult res) {
if(res == TWTweetComposeViewControllerResultDone) {
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"Thank you" message:#"Posted successfully to Twitter." delegate:self cancelButtonTitle:#"Ok" otherButtonTitles: nil];
[alert show];
}
if(res == TWTweetComposeViewControllerResultCancelled) {
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"Cancelled" message:#"You Cancelled posting the Tweet." delegate:self cancelButtonTitle:#"Ok" otherButtonTitles: nil];
[alert show];
}
[self dismissViewControllerAnimated:YES completion:nil];
};
}
Normally I could simply call [twitter addImage:]; but unfortunately it seems the image is not grabbed correctly without going through the processes above in the mail sheet.

Answer 1

You can't pass NSData for -addURL: method.
If your image store on disk, you can create image with [UIImage imageWithContentsOfFile:imagePath] method. Next add it with -addImage:

Answer 2

NSString* path =[NSHomeDirectory() stringByAppendingPathComponent:#"Documents/imgtweet.png"];
[UIImagePNGRepresentation(imageView.image) writeToFile:path atomically:YES];
//NSLog(#"path %#",path);
UIImage *new_image = [UIImage imageWithContentsOfFile:path];
if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter])
{
SLComposeViewController *tweetSheet = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeTwitter];
[tweetSheet setInitialText:self.txtContent.text];
[tweetSheet addImage:new_image];
[self presentViewController:tweetSheet animated:YES completion:nil];
}
Using Previous Answer,Thanks :)
Happy coding :)