Kotlin Observer example

observer.kt

phoneContact.addObserver(MyObserver(recyclerViewPhoneContacts))


class PhoneContact: Observable() {
    var id = ""
    var name = ""
    var phoneNumbers = arrayListOf<String>()
    var emailAddresses = arrayListOf<String>()
    var addresses = arrayListOf<String>()
    var selected = false

    fun setAsSelected(newValue: Boolean){
        selected = newValue
        setChanged()
        notifyObservers()
    }
}

class MyObserver(val recyclerViewPhoneContact: RecyclerView): Observer {
    override fun update(o: Observable?, arg: Any?) {
        Timber.i("Observable= $o")
    }
}