问题
Is it possible to add gesture recogniser to UIDocumentInteractionController? Right now I am not able to add anything on UIDocumentInteractionController preview. Please help how to add gesture recogniser or even a button on top of UIDocumentInteraction controller?
回答1:
See the apple documentation for UIDocumentInteractionController here
They are also providing an example for add gesture recognizers to UIDocumentInteractionController.. See the link here..
来源：https://stackoverflow.com/questions/20604212/how-to-add-uigesturerecognizer-to-uidocumentinteractioncontroller-preview