Android How to - Gather Contact phone data from phone table

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The following code shows how to Gather Contact phone data from phone table.

Example

Main Activity Java code

import android.app.AlertDialog;
import android.app.ListActivity;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.view.View;
import android.widget.AdapterView;
import android.widget.SimpleCursorAdapter;
/*  w  w w .  ja v a2 s . c o  m*/
public class MainActivity extends ListActivity implements AdapterView.OnItemClickListener {

    Cursor mContacts;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        String[] projection = new String[] { ContactsContract.Contacts._ID,
                ContactsContract.Contacts.DISPLAY_NAME };
        mContacts = managedQuery(ContactsContract.Contacts.CONTENT_URI,
                projection, null, null, ContactsContract.Contacts.DISPLAY_NAME);
        SimpleCursorAdapter mAdapter = new SimpleCursorAdapter(this,
                android.R.layout.simple_list_item_1, mContacts,
                new String[] { ContactsContract.Contacts.DISPLAY_NAME },
                new int[] { android.R.id.text1 });
        setListAdapter(mAdapter);
        getListView().setOnItemClickListener(this);
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
        if (mContacts.moveToPosition(position)) {
            int selectedId = mContacts.getInt(0); // _ID column
            Cursor phone = getContentResolver().query(
                    ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                    new String[] { ContactsContract.CommonDataKinds.Phone.NUMBER },
                    ContactsContract.Data.CONTACT_ID + " = " + selectedId, null, null);
            StringBuilder sb = new StringBuilder();
            sb.append(phone.getCount() + " Phone Numbers\n");
            if (phone.moveToFirst()) {
                do {
                    sb.append("Phone: " + phone.getString(0));
                    sb.append('\n');
                } while (phone.moveToNext());
                sb.append('\n');
            }
            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setTitle(mContacts.getString(1)); // Display name
            builder.setMessage(sb.toString());
            builder.setPositiveButton("OK", null);
            builder.create().show();
            
            phone.close();
        }
    }
}

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