Store lambda in a variable in kotlin

Question

I\'m starting developing in Android with kotlin and I have a problem with lambdas. I have a function to set a listener in my view, this looks like this:

fun setL         


        

Answer 1

Here's how you can do it:

class Foo {
    private var listener: () -> Unit = {}
    fun setListener(listener: () -> Unit) {
        this.listener = listener
    }
}

However, manually writing setters is discouraged in Kotlin. Instead, you can just make your property public:

class Foo {
    var listener: () -> Unit = {}
}

For reference, here are the docs about properties with lots of examples.