Java tutorial
//package com.java2s; import android.content.ContentResolver; import android.content.Context; import android.database.Cursor; import android.provider.ContactsContract.CommonDataKinds.Phone; public class Main { public static final String getTelefone(final Context contexto, final String idContato) { ContentResolver cr = contexto.getContentResolver(); Cursor phones = cr.query(Phone.CONTENT_URI, null, Phone.CONTACT_ID + " = " + idContato, null, null); String numero = ""; while (phones.moveToNext()) { numero = phones.getString(phones.getColumnIndex(Phone.NUMBER)); break; } phones.close(); return numero; } }