Android BaseAdapter Test Code

package com.example.testingapp;

import android.database.Cursor;
import android.provider.ContactsContract;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

import java.util.ArrayList;

/**
 * Created by omarq on 09-Aug-16.
 */

class contactsRow {

    String image;
    String name;
    String number;

}

class ContactsAdapter extends BaseAdapter {

    ArrayList<contactsRow> contactsArray;

    ContactsAdapter() {
        contactsArray = new ArrayList<contactsRow>();

        Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);
        while (phones.moveToNext()) {
            String name = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
            String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
            //Toast.makeText(getActivity().getApplicationContext(),name, Toast.LENGTH_LONG).show();

            String full = name + " " + phoneNumber;


        }

    }

    @Override
    public int getCount() {
        return 0;
    }

    @Override
    public Object getItem(int i) {
        return null;
    }

    @Override
    public long getItemId(int i) {
        return 0;
    }

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        return null;
    }

}