As what I said above. I encountered a problem that I have to dismiss the popover on screen while I don't know where it come from.
What I want to do is : when the app become inactive, I want to dismiss the popover. But I don't know where the popover is presented, and which controller is responds to it?
Is there a notification which I could listen to when the UIPopover is presented?
Or can I find the Popover on the screen?
Thank you guys.