Firestore recyclerViewAdapter не содержит обновленное значение переменной в методе onClick [Android]

Question

ТАК Я использую Firestore RecyclerView, в котором метод onBindViewHolder обновляет значение переменной с именем isFollowingBack: Boolean (упоминается во 2-й последней строке моего кода) на основе некоторых условий Firestore. Методы работают отлично, но в методе onClick Адаптера переменная по умолчанию соответствует тому, как она была изменена последним элементом viewHolder в адаптере, но я ожидаю, что каждый viewHolder будет иметь свое собственное значение переменной и действовать по-разному при нажатии, но адаптер несущий одно общее значение для той переменной, которая была изменена последним элементом. Я не уверен, что это ограничение просмотра переработчика Firestore или ограничение класса адаптера:

Вот код:

open class FollowersPeopleAdapter(options: FirestoreRecyclerOptions<PersonUser>) :
FirestoreRecyclerAdapter<PersonUser, FollowersPeopleAdapter.ViewHolder>(options) {

private var isFollowingBack: Boolean? = null

//Inflate the xml
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
    return ViewHolder(
        LayoutInflater.from(parent.context)
            .inflate(R.layout.followers_people_list_item, parent, false))
}

//Bind every dataView to the xml based on the Int value
override fun onBindViewHolder(viewHolder: ViewHolder, holderNumber: Int, personUser: PersonUser) {
    viewHolder.bind(personUser)
    //Set appropriate button styles based on the user Following state towards the person and change 
styles when clicked on the buttons
    getUserFollowingDocReference(personUser.Uid).get().addOnSuccessListener { it ->
        if (it.exists()) {
            //User is Following this person already so set Following button style
            setFollowingButtonStyle(viewHolder)
            isFollowingBack = true
            Timber.i("Following value in bindView is  $isFollowingBack")
        } else {
            //User is not Following this person already so set Follow button style
            setFollowBackButtonStyle(viewHolder)
            isFollowingBack = false
            Timber.i("Following value in bindView is  $isFollowingBack")
        }
        //When user clicks the follow button he is following now so change the style to following 
//button style
        viewHolder.itemView.followers_people_list_follow_button.setOnClickListener {
            if (isFollowingBack!!) {
                isFollowingBack = false
                Timber.i("Following value in bindView is  $isFollowingBack")
                //Set style here itself so that it appears as an instant action for the user
                setFollowBackButtonStyle(viewHolder)
                unFollowThePersonAndRemoveFollowerFromFollowee(personUser)
            } else if (!isFollowingBack!!) {
                isFollowingBack = true
                Timber.i("Following value in bindView is  $isFollowingBack")
                //Set style here itself so that it appears as an instant action for the user
                setFollowingButtonStyle(viewHolder)
                followThePersonAtClientAndFollowee(personUser)
            }
        }
    }
}

private fun setFollowingButtonStyle(viewHolder: ViewHolder) {
    viewHolder.itemView.followers_people_list_follow_button.text = "Following"
    viewHolder.itemView.followers_people_list_follow_button.background =
        getDrawable(getApplicationContext(), R.drawable.white_green_ripple_rectangular_button)
    viewHolder.itemView.followers_people_list_follow_button.textColor =
        getColor(getApplicationContext(), R.color.secondaryColor)
}

//Set the Button Style
private fun setFollowBackButtonStyle(viewHolder: ViewHolder) {
    viewHolder.itemView.followers_people_list_follow_button.text = "Follow Back"
    viewHolder.itemView.followers_people_list_follow_button.background = 
getDrawable(getApplicationContext(), R.drawable.green_ripple_rectangular_button)
    viewHolder.itemView.followers_people_list_follow_button.textColor = 
getColor(getApplicationContext(), R.color.whiteColor)
}

private fun followThePersonAtClientAndFollowee(model: PersonUser) {
    getUserFollowingDocReference(model.Uid).set(model).addOnSuccessListener {
        }.addOnFailureListener {
            Timber.i("Error trying to follow: $it")
        }
}

private fun unFollowThePersonAndRemoveFollowerFromFollowee(model: PersonUser) {
    getUserFollowingDocReference(model.Uid).delete().addOnSuccessListener {
        }.addOnFailureListener {
            Timber.i("Error trying to un-follow: $it")
        }
}

//Adds functionality to each View (aka ViewHolder) which is every person downloaded
inner class ViewHolder(itemView: View?) : RecyclerView.ViewHolder(itemView!!), View.OnClickListener {

    //We are downloading User Objects so this Variable will be assigned to the UserObject downloaded
    private var currentPersonUser : PersonUser? = null

    //When the class is initiated this function is called which sets an OnClickListener to each View
    init {
        itemView!!.setOnClickListener(this)
    }

    //The Data from the Object is used to Populate the TextViews
    fun bind(model: PersonUser) {
        currentPersonUser = model
        itemView.followers_people_person_list_name.text = model.Name
        itemView.followers_people_person_username.text = model.UserName
        if ( currentPersonUser!!.profilePhotoChosen ) {
            //If the personUser has set a profilePhoto then download & populate it with Glide
            getThumbnailProfilePhotoStorageRef(model.Uid).downloadUrl.addOnSuccessListener {
                val downloadUrl = it.toString()
                Timber.i("Followers People download URL : $downloadUrl")
                //Added get Application context to avoid glide loading the image
                // while the activity is being destroyed and avoid a crash
                Glide.with(getApplicationContext())
                    .load(downloadUrl)
                    .placeholder(R.drawable.black_color_rectangle)
                    .apply(CompanionObjects.requestOptions)
                    .transition(DrawableTransitionOptions.withCrossFade(150))
                    .into(itemView.followers_people_list_profile_image)
            }.addOnFailureListener {
                Timber.i("unable to retrieve your profile photo")
                Glide.with(getApplicationContext())
                    .load(R.drawable.ic_person_black_24dp)
                    .into(itemView.followers_people_list_profile_image)
            }
        } else {
            Glide.with(getApplicationContext())
                .load(R.drawable.ic_person_black_24dp)
                .transition(DrawableTransitionOptions.withCrossFade(150))
                .into(itemView.followers_people_list_profile_image)
        }
    }

    //The onClick function is called when the View is clicked,
    //In this case we are starting an Intent
    override fun onClick(v: View?) {
        Timber.i("Following value is $isFollowingBack")
        val intent = Intent(v!!.context, PersonProfileActivity::class.java)
        //If the Person has an Image then add it to the Intent Extras,
        //Also the person is not the user himself,
        if ( currentPersonUser!!.profilePhotoChosen && currentPersonUser!!.Uid != 
CompanionObjects.user.Uid ) {
            //Retrieve the glide drawable as a Bitmap and pass it into the Intent Extras as a 
//ByteArray
            val bmp: Bitmap = itemView.followers_people_list_profile_image.drawToBitmap()
            val baos = ByteArrayOutputStream()
            bmp.compress(Bitmap.CompressFormat.PNG, 100, baos)
            val personThumbnailPhotoByteArray: ByteArray = baos.toByteArray()
            intent.putExtra(CompanionObjects.PERSON_THUMBNAIL_PHOTO_INTENT_EXTRA, 
personThumbnailPhotoByteArray)
        }
        intent.putExtra(CompanionObjects.PERSON_NAME_INTENT_EXTRA, currentPersonUser!!.Name)
        intent.putExtra(CompanionObjects.PERSON_USERNAME_INTENT_EXTRA, currentPersonUser!!.UserName)
        intent.putExtra(CompanionObjects.PERSON_UID_INTENT_EXTRA, currentPersonUser!!.Uid)
        intent.putExtra(CompanionObjects.INTENT_FROM_FOLLOWERS, true)
//THIS IS THE VARIABLE 'isFollowingBack' WHICH IS NOT CARRYING A VALUE WHICH IS SPECIFIC TO THIS VIEWHOLDER
//BUT IS CARRYING THE VALUE OF THE LATEST ITEM IN THIS VIEWHOLDER
        intent.putExtra(CompanionObjects.PERSON_NAME_USER_FOLLOWING_BACK_STATUS, isFollowingBack)
        v.context.startActivity(intent)
    }

}

}