Example on how to create a "custom object" in Android using Data Binding + Kotlin Extensions

CustomViewExtension.kt

fun ExampleViewBinding.bind(
    resources: Resources,
    onAction: (Any) -> Unit
) {
    this.title = resources.getString(R.string.title)
    this.setSaveClickListener {
        this.subtitle = when (someData) {
            true -> R.string.subtitle1
            false -> R.string.subtitle2
        }
        this.setButtonClickListener {
            onAction(it)
        }
    }
}