Displaying The Phone Number Of A Contact In Android Contact Content Provider

i am trying to write a program that would display the id, name and phone number of a contact in android. So far the Id and Names of the contact are displayed but the number of the

Solution 1:

I got your example working by adding a CustomAdapter MyClassAdapter which extends ArrayAdapter, and populating an ArrayList of Contact objects.

import android.app.ListActivity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.CursorLoader;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;

import java.util.ArrayList;

publicclassProvider2ActivityextendsListActivity {

    ArrayList<Contact> contacts;

    @OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_provider2);

        contacts = newArrayList<Contact>();

        UriallContacts= ContactsContract.Contacts.CONTENT_URI;

        //declare our cursor
        Cursor c;

        String[] projection = newString[]
                {ContactsContract.Contacts._ID,
                        ContactsContract.Contacts.DISPLAY_NAME,
                        ContactsContract.Contacts.HAS_PHONE_NUMBER};


        /* >>The second parameter of the managedQuery() method (third parameter for the CursorLoader class)
            controls how many columns are returned by the query; this parameter is known as the projection
           >>The third parameter of the managedQuery() method (fourth parameter for the CursorLoader class)
           enable you to specify a SQL WHERE clause to filter the result of the query
           >>The fourth parameter of the managedQuery() method (the fifth parameter for the CursorLoader class)
           enables you to specify a SQL ORDER BY clause to sort the result of the query, either in ascending or descending order
        * */if (android.os.Build.VERSION.SDK_INT <11) {
            //---if the device ids running on OS before Honeycomb//use the managedQuery() of the Activity class to retrieve a managed cursor
            c = managedQuery(allContacts, projection, null, null, null);

        }
        else {
            //---Honeycomb and later use the cursor loader class to retrieve managed cursor---CursorLoadercursorLoader=newCursorLoader(
                    this,
                    allContacts,
                    projection,
                    null,
                    null ,
                    null);
            c = cursorLoader.loadInBackground();
        }

        PrintContacts(c);

        MyClassAdapter adapter;


        //detect the android version again..if (android.os.Build.VERSION.SDK_INT <11) {
            //---if it is before Honeycomb---

            adapter = newMyClassAdapter(
                    this, R.layout.row_line, contacts);
        }
        else {
            //---Honeycomb and later---

            adapter = newMyClassAdapter(
                    this, R.layout.row_line, contacts);
        }

        this.setListAdapter(adapter);

    }

    privatevoidPrintContacts(Cursor c)
    {
        ContentResolvercr= getContentResolver();
        //---display the contact id and name and phone number----if (c.moveToFirst()) {
            do{
                //---get the contact id and nameStringcontactID= c.getString(c.getColumnIndex(
                        ContactsContract.Contacts._ID));
                StringcontactDisplayName=
                        c.getString(c.getColumnIndex(
                                ContactsContract.Contacts.DISPLAY_NAME));
                Log.v("Content Providers", contactID + ", " +
                        contactDisplayName);

                StringcontactDisplayPhone="";
                    //---get phone number---inthasPhone=
                        c.getInt(c.getColumnIndex(
                                ContactsContract.Contacts.HAS_PHONE_NUMBER));
                if (hasPhone == 1) {
                    CursorphoneCursor=
                            getContentResolver().query(
                                    ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
                                    ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " +
                                            contactID, null, null);
                    while (phoneCursor.moveToNext()) {
                        Log.v("Content Providers",
                                contactDisplayPhone = phoneCursor.getString(
                                        phoneCursor.getColumnIndex(
                                                ContactsContract.CommonDataKinds.Phone.NUMBER)));
                    }
                    phoneCursor.close();

                }
                contacts.add(newContact(contactDisplayName, contactID, contactDisplayPhone));

            } while (c.moveToNext());
        }
    }

    publicclassContact{
        publicStringcontactName="";
        publicStringcontactID="";
        publicStringcontactNumber="";
        publicContact(String name, String id, String number){

            contactName = name;
            contactID = id;
            contactNumber = number;
        }
    }

    publicclassMyClassAdapterextendsArrayAdapter<Contact> {

        privateclassViewHolder {
            private TextView name;
            private TextView id;
            private TextView number;
        }

        publicMyClassAdapter(Context context, int textViewResourceId, ArrayList<Contact> items) {
            super(context, textViewResourceId, items);
        }

        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder viewHolder;
            if (convertView == null) {
                convertView = LayoutInflater.from(this.getContext())
                        .inflate(R.layout.row_line, parent, false);

                viewHolder = newViewHolder();
                viewHolder.name = (TextView) convertView.findViewById(R.id.contactName);
                viewHolder.id = (TextView) convertView.findViewById(R.id.contactID);
                viewHolder.number = (TextView) convertView.findViewById(R.id.contactNumber);

                convertView.setTag(viewHolder);
            } else {
                viewHolder = (ViewHolder) convertView.getTag();
            }

            Contactitem= getItem(position);
            if (item!= null) {
                viewHolder.name.setText(item.contactName);
                viewHolder.id.setText(item.contactID);
                viewHolder.number.setText(item.contactNumber);
            }

            return convertView;
        }
    }

}

row_line.xml:

<?xml version="1.0" encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="vertical"><TextViewandroid:id="@+id/contactName"android:textSize="16sp"android:textStyle="bold"android:layout_width="match_parent"android:layout_height="wrap_content"/><TextViewandroid:id="@+id/contactID"android:textSize="16sp"android:layout_width="match_parent"android:layout_height="wrap_content"/><TextViewandroid:id="@+id/contactNumber"android:textSize="16sp"android:layout_width="match_parent"android:layout_height="wrap_content"/></LinearLayout>

activity_provider2.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".Provider2Activity">

    <ListView

        android:id="@android:id/list"

        android:layout_height="wrap_content"

        android:layout_width="match_parent">

    </ListView>

</RelativeLayout>