Android : sort array objects based on a string field and take account the Locale

Question

This is my Friend object:

public class Friend {

public String firstname;
public String lastname;
...

I want to sort a Friend ArrayList based on the firstname field, and to take account accents:

ArrayList<Friend> mFriends;
...

// Sort friend by firstname
Collections.sort(mFriends, new Comparator<Friend>() {
        @Override
        public int compare(Friend o1, Friend o2) {
            return o1.firstname.compareTo(o2.firstname);
        }
});

So, how can I add the accent condition?

Answer 1

I am not clear, But Collator enables to compare with accents.
see: How to compare non english characters with accents