Add UIView to any Unity UI element (or maybe just to Transform) via some tricky wrapper?

Hello everyone!

I have a native iOS library with method like this:

 - (UIView *)showSomeView;

And I want to write a native plugin that gives an ability to get UIView from method above and to add it as a subview to any Unity UI Component (or maybe just to Transform in certain position with certain frame) representation.

For example I have a Canvas with Image in Unity and want to add UILabel / UIButton from my native iOS library over that Image (with ability to handle it, forward taps, etc.).

I also need the same mechanism for Android.

Is it possible? Do you have any suggestions how to implement it?