Failure to override some methods when UIView is the super class

[jimgoog]

Overriding most methods appears to work in KotlinNative, but for whatever reason, the layout methods on UIView appear to give a compile error when you try to override them.
Specifically, they give errors like 'layoutSubviews' overrides nothing.

@ExportObjCClass
class MyView : UIView {
    constructor(frame: CValue<CGRect>) : super(frame);

    override fun layoutSubviews()  // Compile error here: 'layoutSubviews' overrides nothing
    {
        println("this function was called to layout subviews!!!")
    }
}

Checking the objc.kt file from an older version of KotlinNative suggests that maybe the problem is that layoutSubviews is defined in the interop as an extension method rather than a method on the base class?

How / What is the best practice for overriding this method on UIView?

[SvyatoslavScherbina]

maybe the problem is that layoutSubviews is defined in the interop as an extension method rather than a method on the base class?

Yes, this seems to be the case.
layoutSubviews is declared as category method in Objective-C headers, and category methods are currently represented as Kotlin extension methods.

Extension methods can't be overridden in Kotlin. However, as a workaround, you can declare layoutSubviews Kotlin method without override keyword, and add @ObjCAction annotation to make it visible through Objective-C virtual dispatch:

class MyView : UIView {
   @ObjCAction fun layoutSubviews() {
        ...
    }
}

(Note that @ObjCAction is applicable to methods with very strict constraints on their signatures, namely methods that can be used as actions in target-action pattern. That's why adding @ObjCAction is just a workaround).

[olonho]

Is there anything left with this issue?