How do I set recipients for UIActivityViewController in iOS 6?

Question

I'm using the new UIActivityViewController class in iOS6 to provide the user with various sharing options. You can pass an array of parameters to it such as text, links and images and it does the rest.

How do I define recipients? For example sharing via mail or SMS should be able to accept recipients but I can't figure out how to invoke this behaviour.

I don't want to have to have to use MFMessageComposeViewController and UIActivityViewController separately as that just defeats the purpose of the share controller.

Any suggestions?

UIActivityViewController Class Reference

Edit: This has now been submitted Apple and subsequently merged with a duplicate bug report.

Bug report on OpenRadar

Answer 1

For adding subject to the email using UIActivityViewController on iOS6, this is the best solution that anyone can use.. All you have to do is call the following while initializing UIActivityViewController.

UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:applicationActivities];
[activityViewController setValue:@"My Subject Text" forKey:@"subject"];

And your UIActivityViewController is populated with a subject.