NSSeeThroughView is a category on UIView and a UIButton subclass that let you carve out pieces of a UIView / UIButton to let the view behind it appear through it.
NHSeeThroughView is available through CocoaPods, to install it simply add the following line to your Podfile:
pod "NHSeeThroughView"
Nils Hayat, nilsou@gmail.com
NHSeeThroughView is available under the MIT license. See the LICENSE file for more info.