How to post to Facebook and Twitter using Social Framework

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It is extremely simple to bring up Facebook and Twitter Sheets in your app using the Social Framework.

Once imported you can create a new instance of SLComposeViewController, initialise it with text, an image and a URL, and present it modally from your own view controller.

Screen Shot 2013-12-06 at 18.50.57

You don’t have to specify anything other than which service you’d like to use, in which case the presented sheet will be blank. Here we bring up a tweet sheet (i.e. Post to Twitter dialogue):

- (IBAction)socialSheet:(id)sender {

    // create Twitter controller
    SLComposeViewController *socialController = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeTwitter];

    // present controller
    [self presentViewController:socialController animated:YES completion:nil];
}

And here we specify all three values for a post to Facebook:

- (IBAction)socialSheet:(id)sender {

    // create Facebook controller
    SLComposeViewController *socialController = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];

    // add initial text
    [socialController setInitialText:@"Hello Facebook!"];

    // add an image
    [socialController addImage:[UIImage imageNamed:@"picture.jpg"]];

    // add a URL
    [socialController addURL:[NSURL URLWithString:@"http://wpguru.co.uk"]];

    // present controller
    [self presentViewController:socialController animated:YES completion:nil];
}

Available service types are

– SLServiceTypeFacebook
– SLServiceTypeTwitter
– SLServiceTypeSinaWeibo
– SLServiceTypeTencentWeibo

You can test if a service is available using the isAvailableForService method (which always returns YES on the simulator, and only gives accurate results on a real device):

if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter]) {

    // show Twitter option
}

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