问题
I would like to add a close button outside the bounds of the modal view controller which I am presenting on an iPad app.
I tried adding a button normally via storyboard, via coding, but the UIButtons view gets clipped by the bounds of the modal view controller.
What my purpose is : I want to add a close button at the right corner of my modal view controller which is configured as a Form sheet.
I'm launching the modal view controller via a segue from my previous view.
Attached screenshot show what I am trying to achieve:
来源：https://stackoverflow.com/questions/16105673/place-button-outside-modal-view-controller