Open Twitter settings in Settings app

Question

I know I can open the settings app in iOS 5 using

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@\"prefs://\"]];

but is

Answer 1

Just show the composer. If no Twitter Account is available, it will show an AlertView to go to Settings

var controller = SLComposeViewController(forServiceType: SLServiceTypeTwitter)
controller.setInitialText("My Post")
self.presentViewController(controller, animated: true, completion: nil)