It seems to me that this may be a bug with how kotlin native is implemented. There are two methods in UIApplicationDelegateProtocol that have the same name and same parameters. In swift the parameters have different names, but I don't know of a way to do this in kotlin when defining the overrides. Maybe this is just a Lint error.

@kotlin.commonizer.ObjCCallable public open expect fun application(application: platform.UIKit.UIApplication, didFinishLaunchingWithOptions: kotlin.collections.Map<kotlin.Any?, *>?): kotlin.Boolean { /* compiled code */ }

    @kotlin.commonizer.ObjCCallable public open expect fun application(application: platform.UIKit.UIApplication, willFinishLaunchingWithOptions: kotlin.collections.Map<kotlin.Any?, *>?): kotlin.Boolean { /* compiled code */ }

I use this one in classes implementing

UITableViewDelegateProtocol

, I think it covers all the "this is possible in Swift/ObjC but not in Kotlin" issues you can sometimes have

@file:Suppress(
    "CONFLICTING_OVERLOADS",
    "PARAMETER_NAME_CHANGED_ON_OVERRIDE",
    "RETURN_TYPE_MISMATCH_ON_OVERRIDE"
)