How to get instance of `this` within a lambda expr...

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[zain]

How to get instance of this within a lambda expression

val sectionChildAdapter = SectionChildAdapter {
    callBackListener.invoke(it)
     this.notify(l)
}

[Marius Metzger]

class MyClass {
    fun myFun() {
        val sectionChildAdapter = SectionChildAdapter {
            callBackListener.invoke(it)
            [e-mail](l)
        }
    }
}

[Marius Metzger]

but instead of doing callBackListener.invoke(it), just do callBackListener(it) 😉

[zain]

I wanted the instance of SectionChildAdapter inside the lambda expression

[Marius Metzger]

If I’m not completely mistaken, that should just be this then.

[Marius Metzger]

similar how you just use the callBackListener with an implicit this

[zain]

Sorry for creating confusion with the way I phrased the question, problem is with the implicit this, that doesn't come inside that lambda expression

[Marius Metzger]

you could try this@SectionChildAdapter

[zain]

That doesn't work

[Marius Metzger]

I’d suggest switching approach from a lambda to an abstract method then - that way you could create instances like

val adapter = object : SectionChildAdapter { 

    override fun onChildChange(item: SectionChildItem<*>) {
        callBackListener(it)
        this.notify(l)
    }
}

[zain]

Okay

[zain]

I will try that

[Nikky]

wel lthen you need to define your callback like:

private val callBackListener:  SectionChildAdapter.(SectionChildItem<*>) -> Unit

and call it like so

adapter.callbackListener(item)

[zain]

Woah we can even do that?

[zain]

okay got that, void initially and then set listener separately