问题
I wanted to know if I can hide the Action button on the UIDocumentInteractionController so a user couldn't actually open the document in another app?
回答1:
I found something that works for me well enough:
- (BOOL)documentInteractionController:(UIDocumentInteractionController *)controller canPerformAction:(SEL)action{
return false;
}
It still shows the button but the popover that appears only has the print form but the print button is disabled.
回答2:
The whole purpose of the UIDocumentInteractionController is to show the user which applications can handle a file and give them a way to 'send' the file to the app they choose. Since hiding/disabling the button would confuse the user, I doubt it is possible (at least not without resorting to undocumented method calls).
来源：https://stackoverflow.com/questions/6117119/can-i-hide-the-action-button-on-the-uidocumentinteractioncontroller-view