style: provide folder structure
This commit is contained in:
Gordon Hayes
@@ -0,0 +1,320 @@
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import 'dart:async';
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import 'package:example/utils/localizations.dart';
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import 'package:example/routes/routes.dart';
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import 'package:example/widgets/search_text_field.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:stream_chat_flutter/stream_chat_flutter.dart';
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import 'package:flutter_slidable/flutter_slidable.dart';
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import '../pages/channel_page.dart';
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import '../pages/chat_info_screen.dart';
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import '../pages/group_info_screen.dart';
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class ChannelList extends StatefulWidget {
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@override
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_ChannelList createState() => _ChannelList();
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}
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class _ChannelList extends State<ChannelList> {
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ScrollController _scrollController = ScrollController();
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late StreamMessageSearchListController _messageSearchListController =
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StreamMessageSearchListController(
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client: StreamChat.of(context).client,
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filter: Filter.in_('members', [StreamChat.of(context).currentUser!.id]),
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limit: 5,
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searchQuery: '',
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sort: [
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SortOption(
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'created_at',
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direction: SortOption.ASC,
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),
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],
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);
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TextEditingController? _controller;
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bool _isSearchActive = false;
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Timer? _debounce;
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void _channelQueryListener() {
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if (_debounce?.isActive ?? false) _debounce!.cancel();
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_debounce = Timer(const Duration(milliseconds: 350), () {
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if (mounted) {
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_messageSearchListController.searchQuery = _controller!.text;
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setState(() {
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_isSearchActive = _controller!.text.isNotEmpty;
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});
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if (_isSearchActive) _messageSearchListController.doInitialLoad();
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}
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});
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}
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late final _channelListController = StreamChannelListController(
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client: StreamChat.of(context).client,
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filter: Filter.in_(
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'members',
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[StreamChat.of(context).currentUser!.id],
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),
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presence: true,
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limit: 30,
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);
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@override
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void initState() {
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super.initState();
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_controller = TextEditingController()..addListener(_channelQueryListener);
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}
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@override
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void dispose() {
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_controller?.removeListener(_channelQueryListener);
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_controller?.dispose();
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_scrollController.dispose();
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_channelListController.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return WillPopScope(
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onWillPop: () async {
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if (_isSearchActive) {
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_controller!.clear();
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setState(() => _isSearchActive = false);
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return false;
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}
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return true;
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},
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child: NotificationListener<ScrollUpdateNotification>(
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onNotification: (ScrollNotification scrollInfo) {
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if (_scrollController.position.userScrollDirection ==
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ScrollDirection.reverse) {
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FocusScope.of(context).unfocus();
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}
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return true;
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},
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child: NestedScrollView(
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controller: _scrollController,
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floatHeaderSlivers: false,
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headerSliverBuilder: (_, __) => [
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SliverToBoxAdapter(
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child: SearchTextField(
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controller: _controller,
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showCloseButton: _isSearchActive,
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hintText: AppLocalizations.of(context).search,
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),
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),
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],
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body: _isSearchActive
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? StreamMessageSearchListView(
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controller: _messageSearchListController,
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emptyBuilder: (_) {
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return LayoutBuilder(
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builder: (context, viewportConstraints) {
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return SingleChildScrollView(
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physics: AlwaysScrollableScrollPhysics(),
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child: ConstrainedBox(
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constraints: BoxConstraints(
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minHeight: viewportConstraints.maxHeight,
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),
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child: Center(
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child: Column(
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children: [
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Padding(
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padding: const EdgeInsets.all(24),
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child: StreamSvgIcon.search(
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size: 96,
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color: Colors.grey,
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),
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),
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Text(
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AppLocalizations.of(context).noResults,
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),
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],
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),
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),
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),
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);
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},
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);
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},
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itemBuilder: (
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context,
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messageResponses,
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index,
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defaultWidget,
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) {
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return defaultWidget.copyWith(
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onTap: () async {
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final messageResponse = messageResponses[index];
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FocusScope.of(context).requestFocus(FocusNode());
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final client = StreamChat.of(context).client;
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final message = messageResponse.message;
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final channel = client.channel(
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messageResponse.channel!.type,
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id: messageResponse.channel!.id,
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);
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if (channel.state == null) {
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await channel.watch();
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}
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Navigator.pushNamed(
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context,
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Routes.CHANNEL_PAGE,
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arguments: ChannelPageArgs(
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channel: channel,
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initialMessage: message,
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),
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);
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},
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);
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},
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)
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: SlidableAutoCloseBehavior(
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closeWhenOpened: true,
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child: RefreshIndicator(
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onRefresh: _channelListController.refresh,
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child: StreamChannelListView(
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controller: _channelListController,
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itemBuilder: (context, channels, index, defaultWidget) {
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final chatTheme = StreamChatTheme.of(context);
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final backgroundColor = chatTheme.colorTheme.inputBg;
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final channel = channels[index];
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final canDeleteChannel = channel.ownCapabilities
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.contains(PermissionType.deleteChannel);
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return Slidable(
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groupTag: 'channels-actions',
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endActionPane: ActionPane(
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extentRatio: canDeleteChannel ? 0.40 : 0.20,
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motion: const BehindMotion(),
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children: [
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CustomSlidableAction(
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child: Icon(Icons.more_horiz),
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backgroundColor: backgroundColor,
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onPressed: (_) {
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showChannelInfoModalBottomSheet(
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context: context,
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channel: channel,
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onViewInfoTap: () {
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Navigator.pop(context);
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) {
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final isOneToOne =
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channel.memberCount == 2 &&
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channel.isDistinct;
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return StreamChannel(
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channel: channel,
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child: isOneToOne
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? ChatInfoScreen(
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messageTheme: chatTheme
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.ownMessageTheme,
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user: channel
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.state!.members
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.where((m) =>
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m.userId !=
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channel
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.client
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.state
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.currentUser!
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.id)
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.first
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.user,
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)
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: GroupInfoScreen(
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messageTheme: chatTheme
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.ownMessageTheme,
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),
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);
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},
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),
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);
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},
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);
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},
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),
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if (canDeleteChannel)
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CustomSlidableAction(
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backgroundColor: backgroundColor,
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child: StreamSvgIcon.delete(
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color: chatTheme.colorTheme.accentError,
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),
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onPressed: (_) async {
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final res =
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await showConfirmationBottomSheet(
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context,
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title: 'Delete Conversation',
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question:
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'Are you sure you want to delete this conversation?',
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okText: 'Delete',
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cancelText: 'Cancel',
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icon: StreamSvgIcon.delete(
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color: chatTheme.colorTheme.accentError,
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),
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);
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if (res == true) {
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await _channelListController
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.deleteChannel(channel);
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}
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},
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),
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],
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),
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child: defaultWidget,
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);
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},
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onChannelTap: (channel) {
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Navigator.pushNamed(
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context,
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Routes.CHANNEL_PAGE,
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arguments: ChannelPageArgs(
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channel: channel,
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),
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);
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},
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emptyBuilder: (_) {
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return Center(
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child: Padding(
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padding: const EdgeInsets.all(8),
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child: StreamScrollViewEmptyWidget(
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emptyIcon: StreamSvgIcon.message(
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size: 148,
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color: StreamChatTheme.of(context)
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.colorTheme
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.disabled,
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),
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emptyTitle: TextButton(
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onPressed: () {
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Navigator.pushNamed(
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context,
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Routes.NEW_CHAT,
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);
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},
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child: Text(
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'Start a chat',
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style: StreamChatTheme.of(context)
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.textTheme
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.bodyBold
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.copyWith(
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color: StreamChatTheme.of(context)
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.colorTheme
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.accentPrimary,
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),
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),
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),
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),
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),
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);
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},
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),
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),
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),
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),
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),
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);
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}
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}
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@@ -0,0 +1,167 @@
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import 'package:example/utils/localizations.dart';
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import 'package:flutter/material.dart';
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import 'package:stream_chat_flutter/stream_chat_flutter.dart';
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typedef ChipBuilder<T> = Widget Function(BuildContext context, T chip);
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typedef OnChipAdded<T> = void Function(T chip);
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typedef OnChipRemoved<T> = void Function(T chip);
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class ChipsInputTextField<T> extends StatefulWidget {
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final TextEditingController? controller;
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final FocusNode? focusNode;
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final ValueChanged<String>? onInputChanged;
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final ChipBuilder<T> chipBuilder;
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final OnChipAdded<T>? onChipAdded;
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final OnChipRemoved<T>? onChipRemoved;
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final String hint;
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const ChipsInputTextField({
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Key? key,
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required this.chipBuilder,
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required this.controller,
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this.onInputChanged,
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this.focusNode,
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this.onChipAdded,
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this.onChipRemoved,
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this.hint = 'Type a name',
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}) : super(key: key);
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@override
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ChipInputTextFieldState<T> createState() => ChipInputTextFieldState<T>();
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}
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class ChipInputTextFieldState<T> extends State<ChipsInputTextField<T>> {
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final _chips = <T>{};
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bool _pauseItemAddition = false;
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void addItem(T item) {
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setState(() => _chips.add(item));
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if (widget.onChipAdded != null) widget.onChipAdded!(item);
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}
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void removeItem(T item) {
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setState(() {
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_chips.remove(item);
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if (_chips.isEmpty) resumeItemAddition();
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});
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if (widget.onChipRemoved != null) widget.onChipRemoved!(item);
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}
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void pauseItemAddition() {
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if (!_pauseItemAddition) {
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setState(() => _pauseItemAddition = true);
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}
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widget.focusNode?.unfocus();
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}
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void resumeItemAddition() {
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if (_pauseItemAddition) {
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setState(() => _pauseItemAddition = false);
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}
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widget.focusNode?.requestFocus();
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}
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@override
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Widget build(BuildContext context) {
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return GestureDetector(
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onTap: _pauseItemAddition ? resumeItemAddition : null,
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child: Material(
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elevation: 1,
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color: StreamChatTheme.of(context).colorTheme.barsBg,
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child: Container(
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child: Padding(
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padding: const EdgeInsets.fromLTRB(16, 16, 16, 16),
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child: Row(
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children: [
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Padding(
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padding: const EdgeInsets.symmetric(vertical: 4.0),
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child: Text(
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'${AppLocalizations.of(context).to.toUpperCase()}:',
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style: StreamChatTheme.of(context)
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.textTheme
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.footnote
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.copyWith(
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color: StreamChatTheme.of(context)
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.colorTheme
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.textHighEmphasis
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.withOpacity(.5)),
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),
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),
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SizedBox(width: 12),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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mainAxisSize: MainAxisSize.min,
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children: [
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Wrap(
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spacing: 8.0,
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runSpacing: 4.0,
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children: _chips.map((item) {
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return widget.chipBuilder(context, item);
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}).toList(),
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),
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if (!_pauseItemAddition)
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TextField(
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controller: widget.controller,
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onChanged: widget.onInputChanged,
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focusNode: widget.focusNode,
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decoration: InputDecoration(
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isDense: true,
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border: InputBorder.none,
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focusedBorder: InputBorder.none,
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enabledBorder: InputBorder.none,
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errorBorder: InputBorder.none,
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disabledBorder: InputBorder.none,
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contentPadding: const EdgeInsets.only(top: 4.0),
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hintText: widget.hint,
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hintStyle: StreamChatTheme.of(context)
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.textTheme
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.body
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.copyWith(
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color: StreamChatTheme.of(context)
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.colorTheme
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.textHighEmphasis
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.withOpacity(.5)),
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),
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),
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],
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),
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),
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SizedBox(width: 12),
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Align(
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alignment: Alignment.bottomCenter,
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child: IconButton(
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icon: _chips.isEmpty
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? StreamSvgIcon.user(
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color: StreamChatTheme.of(context)
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.colorTheme
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.textHighEmphasis
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.withOpacity(0.5),
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size: 24,
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)
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: StreamSvgIcon.userAdd(
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color: StreamChatTheme.of(context)
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.colorTheme
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.textHighEmphasis
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.withOpacity(0.5),
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size: 24,
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),
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onPressed: resumeItemAddition,
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alignment: Alignment.topRight,
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visualDensity: VisualDensity.compact,
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padding: const EdgeInsets.all(0),
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splashRadius: 24,
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constraints: BoxConstraints.tightFor(
|
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height: 24,
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||||
width: 24,
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||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,95 @@
|
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import 'package:flutter/material.dart';
|
||||
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
|
||||
|
||||
class SearchTextField extends StatelessWidget {
|
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final TextEditingController? controller;
|
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final ValueChanged<String>? onChanged;
|
||||
final String hintText;
|
||||
final VoidCallback? onTap;
|
||||
final bool showCloseButton;
|
||||
|
||||
const SearchTextField({
|
||||
Key? key,
|
||||
required this.controller,
|
||||
this.onChanged,
|
||||
this.onTap,
|
||||
this.hintText = 'Search',
|
||||
this.showCloseButton = true,
|
||||
}) : super(key: key);
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return Container(
|
||||
height: 36,
|
||||
decoration: BoxDecoration(
|
||||
color: StreamChatTheme.of(context).colorTheme.barsBg,
|
||||
border: Border.all(
|
||||
color: StreamChatTheme.of(context).colorTheme.borders,
|
||||
),
|
||||
borderRadius: BorderRadius.circular(24),
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||||
),
|
||||
margin: const EdgeInsets.symmetric(
|
||||
vertical: 8,
|
||||
horizontal: 8,
|
||||
),
|
||||
child: Row(
|
||||
children: [
|
||||
Expanded(
|
||||
child: TextField(
|
||||
onTap: onTap,
|
||||
controller: controller,
|
||||
onChanged: onChanged,
|
||||
decoration: InputDecoration(
|
||||
prefixText: ' ',
|
||||
prefixIconConstraints: BoxConstraints.tight(Size(40, 24)),
|
||||
prefixIcon: Padding(
|
||||
padding: const EdgeInsets.only(
|
||||
left: 8,
|
||||
right: 8,
|
||||
),
|
||||
child: StreamSvgIcon.search(
|
||||
color:
|
||||
StreamChatTheme.of(context).colorTheme.textHighEmphasis,
|
||||
size: 24,
|
||||
),
|
||||
),
|
||||
hintText: hintText,
|
||||
hintStyle: StreamChatTheme.of(context).textTheme.body.copyWith(
|
||||
color: StreamChatTheme.of(context)
|
||||
.colorTheme
|
||||
.textHighEmphasis
|
||||
.withOpacity(.5)),
|
||||
contentPadding: const EdgeInsets.all(0),
|
||||
border: OutlineInputBorder(
|
||||
borderSide: BorderSide.none,
|
||||
borderRadius: BorderRadius.circular(24),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
if (showCloseButton)
|
||||
Material(
|
||||
color: Colors.transparent,
|
||||
child: IconButton(
|
||||
padding: const EdgeInsets.all(0),
|
||||
icon: StreamSvgIcon.closeSmall(
|
||||
color: Colors.grey,
|
||||
),
|
||||
splashRadius: 24,
|
||||
onPressed: () {
|
||||
if (controller!.text.isNotEmpty) {
|
||||
Future.microtask(
|
||||
() => [
|
||||
controller!.clear(),
|
||||
if (onChanged != null) onChanged!(''),
|
||||
],
|
||||
);
|
||||
}
|
||||
},
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,40 @@
|
||||
import 'package:example/utils/localizations.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter/services.dart';
|
||||
import 'package:yaml/yaml.dart';
|
||||
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
|
||||
|
||||
class StreamVersion extends StatelessWidget {
|
||||
const StreamVersion({
|
||||
Key? key,
|
||||
}) : super(key: key);
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return Container(
|
||||
padding: const EdgeInsets.symmetric(vertical: 16),
|
||||
alignment: Alignment.bottomCenter,
|
||||
child: FutureBuilder<String>(
|
||||
future: rootBundle.loadString('pubspec.lock'),
|
||||
builder: (context, snapshot) {
|
||||
if (!snapshot.hasData) {
|
||||
return SizedBox();
|
||||
}
|
||||
|
||||
final pubspec = snapshot.data!;
|
||||
final yaml = loadYaml(pubspec);
|
||||
final streamChatDep =
|
||||
yaml['packages']['stream_chat_flutter']['version'];
|
||||
|
||||
return Text(
|
||||
'${AppLocalizations.of(context).streamSDK} v $streamChatDep',
|
||||
style: TextStyle(
|
||||
fontSize: 14,
|
||||
color: StreamChatTheme.of(context).colorTheme.disabled,
|
||||
),
|
||||
);
|
||||
},
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user