Issue with higher order function as a binding adapter

Question

I am running into issues trying to take a function as a parameter in a binding adapter using Kotlin/Android databinding. This example code throws e: error: cannot generate

Answer 1

Put apply plugin: 'kotlin-kapt' in build.gradle

Then you can create Binding Adapter like

@JvmStatic
@BindingAdapter("onDelayedClick")
fun onDelayedClick(view: View, function: () -> Unit) {
    // TODO: Do something
}

And XML Like

And VM Like

val testFunction =  {
    // TODO: Do something
}