public class ContactsActivity extends Activity { private static final String TAG = "ContactsActivity"; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Cursor c = null; c = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null); StringBuilder sb = new StringBuilder("所有联系人:").append("\n"); while(c.moveToNext()){ int index = c.getColumnIndex(PhoneLookup.DISPLAY_NAME); String name = c.getString(index); sb.append("name="+name); String id = c.getString(c.getColumnIndex(ContactsContract.Contacts._ID)); Cursor phone = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID+" = "+id, null,null); sb.append("phone number:\n"); while(phone.moveToNext()){ String number = phone.getString(phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); sb.append(number).append("\n"); } phone.close();