AppDelegateProxy is used to minize AppDelegate.swift file size. More about this problem and concept here:
https://github.com/strongself/RamblerAppDelegateProxy
In this repository, I'm trying out AppDelegateProxy for swift. As for swift we can't use objc version and it pod, we gonna try out swift gist example: https://gist.github.com/CognitiveDisson/8bea14e2578a213478f0d6d3f8d30c07