Hi, help wanted here: I am trying to write a `doIf...

# anko

[anthonyandroid]

Hi, help wanted here:
I am trying to write a doIf extension method for my View . What I want is:
- First check if the View is target ViewType
- If so, do the things.
And I try to do it, come out with these code:

fun View.doIf(shouldDo: Boolean, init: Unit) {
    if(shouldDo) init
}

This can work but it doesn't look quite perfect... cause every time I am using this extension, I need to write the code like this:

a.doIf(a is SomeViewType, (a as SomeViewType).doSomething)

Any idea how to auto convert a to SomeViewType? I am thinking I might have something wrong in my extension method...