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IPhone / Objective-C - UIDocumentInteractionController class reference when presenting views and delegates

I use UIDocumentInteractionControllerinside my application to display the Instagram filter screen as described here from my application:

http://instagram.com/developer/iphone-hooks/

UIDocumentInteractionController class documentation :

I am not quite sure if it is possible to reject the Instagram filter screen and return back to my application with the modified one UIImageafter downloading it (or, possibly, after filtering it) using Instagram.

As far as I know, I do not think this is possible, since there is no delegate method that is available after the application appears, and this most likely includes the dismiss button from the Instagram filter screen.

In any case, I would also like to know if there is a suitable way to at least return the URL / ID from Instagram after its publication, so that I can link to the modified image from my application using either their API documentation or just referring to the URL of the image.

Thanks in advance and any help would be greatly appreciated.

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, , , UIDocumentInteractionController Instagram . , Instagram , . (contact@instagr.am) Google (, ?).

( , , Instagram URL- instagram://[regular options]?callback=myapp://callback_url, , .)

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