问题
How do I combine a UIActivityViewController and a UIDocumentInteractionController? The Mail app and the Tumblr app seem to compine a UIActivityViewController with a UIDocumentInteractionController because their controllers also show the "Open in" buttons besides the UIActivities. How can I accomplish this?
回答1:
Use presentOptionsMenuFromRect:inView:animated: in UIDocumentInteractionController
来源：https://stackoverflow.com/questions/19591028/uiactivityviewcontroller-and-uidocumentinteractioncontroller