add stream_chat_v1 example
This commit is contained in:
Salvatore Giordano
@@ -0,0 +1,331 @@
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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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import 'package:uuid/uuid.dart';
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import 'main.dart';
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import 'routes/routes.dart';
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class GroupChatDetailsScreen extends StatefulWidget {
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final List<User> selectedUsers;
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const GroupChatDetailsScreen({
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Key key,
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@required this.selectedUsers,
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}) : super(key: key);
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@override
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_GroupChatDetailsScreenState createState() => _GroupChatDetailsScreenState();
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}
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class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
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final _selectedUsers = <User>[];
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TextEditingController _groupNameController;
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bool _isGroupNameEmpty = true;
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int get _totalUsers => _selectedUsers.length;
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void _groupNameListener() {
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final name = _groupNameController.text;
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if (mounted) {
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setState(() {
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_isGroupNameEmpty = name.isEmpty;
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});
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}
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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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_selectedUsers.addAll(widget.selectedUsers);
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_groupNameController = TextEditingController()
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..addListener(_groupNameListener);
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}
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@override
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void dispose() {
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_groupNameController?.removeListener(_groupNameListener);
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_groupNameController?.clear();
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_groupNameController?.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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Navigator.pop(context, _selectedUsers);
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return false;
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},
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child: Scaffold(
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backgroundColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
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appBar: AppBar(
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brightness: Theme.of(context).brightness,
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elevation: 1,
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backgroundColor: StreamChatTheme.of(context).colorTheme.white,
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leading: const StreamBackButton(),
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title: Text(
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'Name of Group Chat',
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style: TextStyle(
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color: StreamChatTheme.of(context).colorTheme.black,
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fontSize: 16,
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),
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),
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centerTitle: true,
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bottom: PreferredSize(
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preferredSize: Size.fromHeight(kToolbarHeight),
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child: Padding(
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padding: const EdgeInsets.symmetric(vertical: 18, horizontal: 16),
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child: Row(
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children: [
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Text(
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'NAME',
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style: TextStyle(
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fontSize: 12,
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color: StreamChatTheme.of(context).colorTheme.grey,
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),
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),
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SizedBox(width: 16),
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Expanded(
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child: TextField(
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controller: _groupNameController,
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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.all(0),
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hintText: 'Choose a group chat name',
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hintStyle: TextStyle(
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fontSize: 14,
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color: StreamChatTheme.of(context).colorTheme.grey,
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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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actions: [
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StreamNeumorphicButton(
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child: IconButton(
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padding: const EdgeInsets.all(0),
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icon: StreamSvgIcon.check(
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size: 24,
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color: _isGroupNameEmpty
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? StreamChatTheme.of(context).colorTheme.grey
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: StreamChatTheme.of(context).colorTheme.accentBlue,
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),
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onPressed: _isGroupNameEmpty
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? null
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: () async {
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try {
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final groupName = _groupNameController.text;
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final client = StreamChat.of(context).client;
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final channel = client.channel('messaging',
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id: Uuid().v4(),
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extraData: {
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'members': [
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client.state.user.id,
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..._selectedUsers.map((e) => e.id),
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],
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'name': groupName,
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});
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await channel.watch();
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Navigator.pushNamedAndRemoveUntil(
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context,
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Routes.CHANNEL_PAGE,
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ModalRoute.withName(Routes.HOME),
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arguments: ChannelPageArgs(channel: channel),
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);
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} catch (err) {
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_showErrorAlert();
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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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body: ConnectionStatusBuilder(
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statusBuilder: (context, status) {
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String statusString = '';
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bool showStatus = true;
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switch (status) {
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case ConnectionStatus.connected:
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statusString = 'Connected';
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showStatus = false;
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break;
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case ConnectionStatus.connecting:
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statusString = 'Reconnecting...';
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break;
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case ConnectionStatus.disconnected:
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statusString = 'Disconnected';
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break;
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}
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return InfoTile(
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showMessage: showStatus,
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tileAnchor: Alignment.topCenter,
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childAnchor: Alignment.topCenter,
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message: statusString,
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child: Column(
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children: [
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Container(
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width: double.maxFinite,
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decoration: BoxDecoration(
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gradient:
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StreamChatTheme.of(context).colorTheme.bgGradient,
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),
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child: Padding(
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padding: const EdgeInsets.symmetric(
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vertical: 8,
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horizontal: 8,
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),
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child: Text(
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'$_totalUsers ${_totalUsers > 1 ? 'Members' : 'Member'}',
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style: TextStyle(
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color: StreamChatTheme.of(context).colorTheme.grey,
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),
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),
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),
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),
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Expanded(
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child: GestureDetector(
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behavior: HitTestBehavior.opaque,
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onPanDown: (_) => FocusScope.of(context).unfocus(),
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child: ListView.separated(
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itemCount: _selectedUsers.length + 1,
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separatorBuilder: (_, __) => Container(
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height: 1,
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color: StreamChatTheme.of(context)
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.colorTheme
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.greyWhisper,
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),
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itemBuilder: (_, index) {
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if (index == _selectedUsers.length) {
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return Container(
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height: 1,
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color: StreamChatTheme.of(context)
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.colorTheme
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.greyWhisper,
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);
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}
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final user = _selectedUsers[index];
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return ListTile(
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key: ObjectKey(user),
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leading: UserAvatar(
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user: user,
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constraints: BoxConstraints.tightFor(
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width: 40,
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height: 40,
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),
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),
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title: Text(
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user.name,
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style: TextStyle(fontWeight: FontWeight.bold),
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),
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contentPadding: const EdgeInsets.symmetric(
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horizontal: 12,
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vertical: 8,
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),
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trailing: IconButton(
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icon: Icon(
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Icons.clear_rounded,
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color: StreamChatTheme.of(context)
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.colorTheme
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.black,
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),
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padding: const EdgeInsets.all(0),
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splashRadius: 24,
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onPressed: () {
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setState(() {
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_selectedUsers.remove(user);
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});
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if (_selectedUsers.isEmpty) {
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Navigator.pop(context, _selectedUsers);
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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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}
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void _showErrorAlert() {
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showModalBottomSheet(
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backgroundColor: StreamChatTheme.of(context).colorTheme.white,
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context: context,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.only(
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topLeft: Radius.circular(16.0),
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topRight: Radius.circular(16.0),
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)),
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builder: (context) {
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return Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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SizedBox(
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height: 26.0,
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),
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StreamSvgIcon.error(
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color: StreamChatTheme.of(context).colorTheme.accentRed,
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size: 24.0,
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),
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SizedBox(
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height: 26.0,
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),
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Text(
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'Something went wrong',
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style: StreamChatTheme.of(context).textTheme.headlineBold,
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),
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SizedBox(
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height: 7.0,
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),
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Text('The operation couldn\'t be completed.'),
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SizedBox(
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height: 36.0,
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),
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Container(
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color:
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StreamChatTheme.of(context).colorTheme.black.withOpacity(.08),
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height: 1.0,
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),
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Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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FlatButton(
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child: Text(
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'OK',
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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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.accentBlue),
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),
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onPressed: () {
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Navigator.of(context).pop();
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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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