Envelope/mobile/lib/views/main/conversation_list.dart

import 'package:flutter/material.dart';
import '/models/conversations.dart';
import '/views/main/conversation_list_item.dart';

class ConversationList extends StatefulWidget {
    const ConversationList({Key? key}) : super(key: key);

    @override
    State<ConversationList> createState() => _ConversationListState();
}

class _ConversationListState extends State<ConversationList> {
    List<Message> messages = [
        Message(
                id: '123',
                conversationId: 'xyz',
                data: '',
                symmetricKey: '',
                messageType: 'reciever',
        ),
    ];

    List<Conversation> friends = [
        Conversation(
                id: 'xyz', 
                friendId: 'abc', 
                recentMessageId: '123',
        ),
    ];

    Widget list() {

        if (friends.isEmpty) {
            return const Center(
                    child: Text('No Conversations'),
            );
        }

        return ListView.builder(
                itemCount: friends.length,
                shrinkWrap: true,
                padding: const EdgeInsets.only(top: 16),
                physics: const NeverScrollableScrollPhysics(),
                itemBuilder: (context, i) {
                    return ConversationListItem(
                            id: friends[i].id,
                            username: 'Test',
                    );
                },
        );
    }

    @override
    Widget build(BuildContext context) {
        return Scaffold(
                body: SingleChildScrollView(
                        physics: const BouncingScrollPhysics(),
                        child: Column(
                                crossAxisAlignment: CrossAxisAlignment.start,
                                children: <Widget>[
                                    SafeArea(
                                            child: Padding(
                                                    padding: const EdgeInsets.only(left: 16,right: 16,top: 10),
                                                    child: Row(
                                                            mainAxisAlignment: MainAxisAlignment.spaceBetween,
                                                            children: <Widget>[
                                                                const Text("Conversations",style: TextStyle(fontSize: 32,fontWeight: FontWeight.bold),),
                                                                Container(
                                                                        padding: const EdgeInsets.only(left: 8,right: 8,top: 2,bottom: 2),
                                                                        height: 30,
                                                                        decoration: BoxDecoration(
                                                                                borderRadius: BorderRadius.circular(30),
                                                                                color: Colors.pink[50],
                                                                        ),
                                                                        child: Row(
                                                                                children: const <Widget>[
                                                                                    Icon(Icons.add,color: Colors.pink,size: 20,),
                                                                                    SizedBox(width: 2,),
                                                                                    Text("Add",style: TextStyle(fontSize: 14,fontWeight: FontWeight.bold),),
                                                                                ],
                                                                        ),
                                                                )
                                                            ],
                                                    ),
                                                ),
                                        ),
                                        Padding(
                                                padding: const EdgeInsets.only(top: 16,left: 16,right: 16),
                                                child: TextField(
                                                        decoration: InputDecoration(
                                                                hintText: "Search...",
                                                                hintStyle: TextStyle(color: Colors.grey.shade600),
                                                                prefixIcon: Icon(Icons.search,color: Colors.grey.shade600, size: 20,),
                                                                filled: true,
                                                                fillColor: Colors.grey.shade100,
                                                                contentPadding: const EdgeInsets.all(8),
                                                                enabledBorder: OutlineInputBorder(
                                                                        borderRadius: BorderRadius.circular(20),
                                                                        borderSide: BorderSide(
                                                                                color: Colors.grey.shade100
                                                                        )
                                                                ),
                                                        ),
                                                ),
                                        ),
                                        Padding(
                                                padding: const EdgeInsets.only(top: 16,left: 16,right: 16),
                                                child: list(),
                                        ),
                                ],
                        ),
                    ),
            );
    }
}