Kotlin ViewBinder for Android

Binding.kt

/**
 * View binder with nullable types support
 */
class ViewBinder<M>(val function: (M) -> Unit) : ReadWriteProperty<Any, M> {
    private var mValue: M? = null

    override fun getValue(thisRef: Any, property: KProperty<*>): M {
        return mValue as M
    }

    override fun setValue(thisRef: Any, property: KProperty<*>, value: M) {
        mValue = value
        function(value)
    }
}