Gordon Hayes
92 lines
3.9 KiB
Dart
92 lines
3.9 KiB
Dart
import 'package:collection/collection.dart';
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import 'package:flutter/cupertino.dart';
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import 'package:imessage/message_header.dart';
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import 'package:imessage/message_input.dart';
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import 'package:imessage/message_widget.dart';
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import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart'
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show Message, StreamChatCore;
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class MessageListView extends StatelessWidget {
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const MessageListView({Key? key, this.messages}) : super(key: key);
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final List<Message>? messages;
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@override
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Widget build(BuildContext context) {
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final entries = groupBy(messages!,
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(Message message) => message.createdAt.toString().substring(0, 10))
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.entries
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.toList();
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return Padding(
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padding: const EdgeInsets.symmetric(horizontal: 8.0),
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child: Column(
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children: [
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Expanded(
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child: SizedBox(
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height: MediaQuery.of(context).size.height * 0.9,
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child: Align(
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alignment: FractionalOffset.topCenter,
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child: ListView.builder(
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reverse: true,
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itemCount: entries.length,
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itemBuilder: (context, index) {
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return Column(
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children: [
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Padding(
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padding: const EdgeInsets.fromLTRB(
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8.0, 24.0, 8.0, 8.0),
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child: MessageHeader(
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rawTimeStamp: entries[index].key), //date
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),
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...entries[index]
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.value //messages
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.asMap()
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.entries
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.map(
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(entry) {
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final message = entry.value;
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final isFinalMessage = 0 == entry.key;
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final received =
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isReceived(message, context);
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return (received)
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? MessageWidget(
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alignment: Alignment.topRight,
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margin: const EdgeInsets.fromLTRB(
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8.0, 4.0, 16.0, 4.0),
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color: const Color(0xFF3CABFA),
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messageColor: CupertinoColors.white,
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message: message,
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hasTail: isFinalMessage,
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)
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: MessageWidget(
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alignment: Alignment.centerLeft,
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margin: const EdgeInsets.fromLTRB(
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16.0, 4.0, 8.0, 4.0),
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color: CupertinoColors.systemGrey5,
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messageColor: CupertinoColors.black,
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message: message,
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hasTail: isFinalMessage,
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);
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},
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)
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.toList()
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.reversed,
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],
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);
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}),
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)),
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),
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const MessageInput()
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],
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),
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);
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}
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bool isReceived(Message message, BuildContext context) {
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final currentUserId = StreamChatCore.of(context).currentUser!.id;
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return message.user!.id == currentUserId;
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}
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bool isSameDay(Message message) =>
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message.createdAt.day == DateTime.now().day;
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}
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