问题
I have some custom buttons in my host app that I'd like to use in the Today Extension.
They work just fine in the app but do not display in the widget.
The button on the left is my custom button class, the one on the right is a UIButton. If I change it to my custom class it too disappears.
Any thoughts why this might be happening?
----------------------EDIT------------------------
Well, somehow I managed to get it to display but sometimes it's not drawing the whole button and sometimes it's drawing the button incorrectly.
Any help would be appreciated! Thanks
来源：https://stackoverflow.com/questions/28537482/custom-button-not-displaying-in-today-extension