Unreal Engine for Swift and Xcode

I am trying to make an app for iOS with Swift and Xcode. I don’t really need any more explaining so here is my question: Can I use Unreal Engine with Swift in Xcode, and if so, how?
Thanks in advance. Any help is appreciated.

You can only use mixed C++ and Objective-C. I recommend you to study UE4 source code with iOS implementation or you can check simple example in this plugin: https://github.com/gameDNAstudio/MobileUtils/blob/master/Source/MobileUtils/Private/IOS/MobileUtilsPlatform.cpp