ArrayAdapter contains an object based on a value

问题

I have a ListView and ListView adapter. I am adding objects to the adapter but I only want to add one row with an object that contains a certain String. This is my code but it does not work:

public static List<FriendsVideoLVModel> list = new ArrayList<FriendsVideoLVModel>();

    @Override
public void add(FriendsVideoLVModel obj) {
    super.add(obj);

   for (int i=0; i <list.size(); i++) {
       if (!obj.eventTitle.equals(list.get(i).eventTitle)) {
           list.add(obj);
           notifyDataSetChanged();
       }
   }
}

Please help. The logic looks fine to me but it just does not work. Nothing is in fact added.

来源：https://stackoverflow.com/questions/28825038/arrayadapter-contains-an-object-based-on-a-value