Get and show the name of conversation members

lib/lists/conversations_list.dart

@@ -0,0 +1,33 @@
+import 'dart:collection';
+
+import 'package:comunic/lists/users_list.dart';
+import 'package:comunic/models/conversation.dart';
+
+/// Conversations list
+///
+/// @author Pierre HUBERT
+
+class ConversationsList extends ListBase<Conversation> {
+
+  final List<Conversation> _list = List();
+  UsersList users;
+
+  set length(l) => _list.length = l;
+  int get length => _list.length;
+
+  @override
+  Conversation operator [](int index) => _list[index];
+
+  @override
+  void operator []=(int index, Conversation value) => _list[index] = value;
+
+  /// Get the entire lists of users ID in this list
+  List<int> get allUsersID {
+    final List<int> list = List();
+    forEach((c) => c.members.forEach((id){
+      if(!list.contains(id))
+        list.add(id);
+    }));
+    return list;
+  }
+}

lib/lists/users_list.dart

@@ -0,0 +1,34 @@
+import 'dart:collection';
+
+import 'package:comunic/models/user.dart';
+
+/// Users list
+///
+/// @author Pierre HUBERT
+
+class UsersList extends ListBase<User> {
+
+  List<User> _list = List();
+
+  int get length => _list.length;
+  set length(l) => _list.length = l;
+
+  @override
+  User operator [](int index) {
+    return _list[index];
+  }
+
+  @override
+  void operator []=(int index, User value) {
+    _list[index] = value;
+  }
+
+  /// Find a user with a specific ID
+  User getUser(int userID){
+    for(int i = 0; i < this.length; i++)
+      if(this[i].id == userID)
+        return this[i];
+
+      throw "User not found in the list!";
+  }
+}