public class ContactsListAdapter extends BaseAdapter {

private static final String TAG = "ContactsListAdapter";

/*********** Declare Used Variables *********/
private Activity activity;
private ArrayList data;
private static LayoutInflater inflater=null;
public Resources res;
ContactsModel tempValues=null;
int i=0;

public ContactsListAdapter(Activity a, ArrayList d, Resources resLocal) {

    /********** Take passed values **********/
    activity = a;
    data=d;
    res = resLocal;

    /***********  Layout inflator to call external xml layout () ***********/
    inflater = ( LayoutInflater )activity.
            getSystemService(Context.LAYOUT_INFLATER_SERVICE);

}

@Override
public int getCount() {
    if (data != null) {
        if(data.size()<=0)
            return 1;
        return data.size();
    } else
        return 0;
}

@Override
public Object getItem(int position) {
    if (data != null)
        return position;
    return null;
}

@Override
public long getItemId(int position) {
    if (data != null)
        return position;
    return 0;
}

/********* Create a holder Class to contain inflated xml file elements *********/
public static class ViewHolder{

    public RelativeLayout containerView;
    public TextView fullname;
    public TextView phone_number;

}

@Override
public View getView(final int position, View convertView, ViewGroup viewGroup) {
    View vi = convertView;
    final ContactsListAdapter.ViewHolder holder;

    if(convertView==null){

        /****** Inflate tabitem.xml file for each row ( Defined below ) *******/
        vi = inflater.inflate(R.layout.contacts_list_item, null);

        /****** View Holder Object to contain tabitem.xml file elements ******/

        holder = new ContactsListAdapter.ViewHolder();
        holder.fullname = vi.findViewById(R.id.contactName);
        holder.phone_number = vi.findViewById(R.id.contactPhoneNumber);
        holder.containerView = vi.findViewById(R.id.containerView);

        /************  Set holder with LayoutInflater ************/
        vi.setTag( holder );
    }
    else
        holder=(ContactsListAdapter.ViewHolder)vi.getTag();

    if(data.size()<=0)
    {
        //holder.username.setText("No Data");

    }
    else
    {
        /***** Get each Model object from Arraylist ********/
        tempValues=null;
        tempValues = ( ContactsModel ) data.get( position );

        holder.fullname.setText(tempValues.getFullname());
        holder.phone_number.setText(tempValues.getPhone_number());

    }
    return vi;
}

class Contacts(context: Context, listview : ListView, adapter : ContactsListAdapter?, CustomListViewValuesArr : ArrayList<ContactsModel>, progress : ProgressBar?) : AsyncTask<Unit, Unit, Unit>() {

    val context : Context = context
    var listview : ListView = listview
    var adapter : ContactsListAdapter? = adapter
    var CustomListViewValuesArr : ArrayList<ContactsModel> = CustomListViewValuesArr
    var holder : ArrayList<ContactsModel>? = null
    var progress : ProgressBar? = progress

    override fun onPreExecute() {
        super.onPreExecute()
        progress!!.visibility = View.VISIBLE
        progress!!.animate()
    }

    override fun doInBackground(vararg params: Unit?) {

        var obj : JSONObject = JSONObject()

        var contactsModels : ArrayList<ContactsModel> = arrayListOf()

        var cr : ContentResolver = context.contentResolver

        var cur : Cursor = cr.query(ContactsContract.Contacts.CONTENT_URI,
                null, null, null, null)

        if ((if(cur != null) cur.getCount() else 0) > 0) {
            while (cur != null && cur.moveToNext()) {
                val id = cur.getString(
                        cur.getColumnIndex(ContactsContract.Contacts._ID))

                val name = cur.getString(cur.getColumnIndex(
                        ContactsContract.Contacts.DISPLAY_NAME))

                if (cur.getInt(cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)) > 0) {

                    val pCur = cr.query(
                            ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
                            ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
                            arrayOf(id), null)

                    while (pCur.moveToNext()) {
                        var phoneNo : String = pCur.getString(pCur.getColumnIndex(
                                ContactsContract.CommonDataKinds.Phone.NUMBER)).replace("\D", "")

                        obj.put(name, phoneNo)

                        var model : ContactsModel = ContactsModel()
                        model.fullname = name
                        model.phone_number = phoneNo
                        contactsModels.add(model)
                    }

                    pCur.close()

                }
            }

            holder = contactsModels

        }

    }

    override fun onPostExecute(result: Unit?) {
        super.onPostExecute(result)

        CustomListViewValuesArr.clear()
        CustomListViewValuesArr.addAll(holder!!)
        //Log.d(TAG, "Adapter Notify")
        adapter!!.notifyDataSetChanged()

        progress!!.visibility = View.GONE
    }

}

contactsListView!!.setOnItemClickListener(object : AdapterView.OnItemClickListener {
        override fun onItemClick(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
            val items = contactsListView!!.getCheckedItemPositions()

            for (i in 0 until contactsListView!!.getAdapter().getCount()) {

                if (items.get(i) == true) {

                    parent!!.getChildAt(i).setBackgroundColor(getResources().getColor(R.color.hapningGrey))
                    val contactName = parent.getChildAt(i).findViewById<TextView>(R.id.contactName)
                    val phoneNumber = parent.getChildAt(i).findViewById<TextView>(R.id.contactPhoneNumber)

                    var itemPhoneNumber : String = phoneNumber.text.toString()
                            .replace("(", "")
                            .replace(")", "")
                            .replace(" ", "")
                            .replace("-", "")

                    if (nominatedList.contains(itemPhoneNumber) == false) {
                        nominatedList.add(itemPhoneNumber)
                    }

                } else {

                    parent!!.getChildAt(i).setBackgroundColor(Color.TRANSPARENT)
                    val contactName = parent.getChildAt(i).findViewById<TextView>(R.id.contactName)
                    val phoneNumber = parent.getChildAt(i).findViewById<TextView>(R.id.contactPhoneNumber)

                    var itemPhoneNumber : String = phoneNumber.text.toString()
                            .replace("(", "")
                            .replace(")", "")
                            .replace(" ", "")
                            .replace("-", "")

                    if (nominatedList.contains(itemPhoneNumber) == true) {
                        nominatedList.remove(itemPhoneNumber)
                    }

                }


            }

            Log.d(TAG, nominatedList.toString())

        }
    })