Рабочий и компактный вариант решения, найденный на англоязычном StackOverflow.
public String getPhoneNumber(String name, Context context) {
String ret = null;
String selection = ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME+" like'%" + name +"%'";
String[] projection = new String[] { ContactsContract.CommonDataKinds.Phone.NUMBER};
Cursor c = context.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
projection, selection, null, null);
if (c.moveToFirst()) {
ret = c.getString(0);
}
c.close();
if(ret==null)
ret = "Unsaved";
return ret;
Источник:
https://stackoverflow.com/questions/6330151/how-to...