extract screens
This commit is contained in:
Salvatore Giordano
@@ -0,0 +1,221 @@
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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 'main.dart';
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import 'neumorphic_button.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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Channel _channel;
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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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_channel = StreamChat.of(context).client.channel('messaging');
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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?.clear();
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_groupNameController?.removeListener(_groupNameListener);
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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 Scaffold(
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backgroundColor: Color.fromRGBO(252, 252, 252, 1),
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appBar: AppBar(
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elevation: 1,
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backgroundColor: Colors.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: Colors.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: Colors.black.withOpacity(0.5),
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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, color: Colors.black.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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),
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),
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actions: [
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NeumorphicButton(
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child: IconButton(
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padding: const EdgeInsets.all(0),
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icon: Icon(StreamIcons.check),
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color: Color(0xFF006CFF),
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onPressed: _isGroupNameEmpty
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? null
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: () async {
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final groupName = _groupNameController.text;
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final client = _channel.client;
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_channel.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.of(context)
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..pop()
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..pushReplacement(
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MaterialPageRoute(
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builder: (context) {
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return StreamChannel(
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child: ChannelPage(),
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channel: _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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),
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),
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],
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),
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body: Column(
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children: [
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Container(
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width: double.maxFinite,
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color: Colors.grey.shade50,
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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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fontWeight: FontWeight.w500,
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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: 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: Theme.of(context).brightness == Brightness.dark
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? Colors.white.withOpacity(0.1)
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: Colors.black.withOpacity(0.1),
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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: Theme.of(context).brightness == Brightness.dark
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? Colors.white.withOpacity(0.1)
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: Colors.black.withOpacity(0.1),
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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: Colors.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);
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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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