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extract screens

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This commit is contained in:
Salvatore Giordano
2020-11-21 11:24:38 +01:00
parent 682c0b3e10
commit d7a8d4f3f9
5 changed files with 840 additions and 821 deletions
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example/lib/group_chat_details_screen.dart
+221
View File
@@ -0,0 +1,221 @@
import 'package:flutter/material.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
import 'main.dart';
import 'neumorphic_button.dart';
class GroupChatDetailsScreen extends StatefulWidget {
final List<User> selectedUsers;
const GroupChatDetailsScreen({
Key key,
@required this.selectedUsers,
}) : super(key: key);
@override
_GroupChatDetailsScreenState createState() => _GroupChatDetailsScreenState();
}
class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
final _selectedUsers = <User>[];
TextEditingController _groupNameController;
Channel _channel;
bool _isGroupNameEmpty = true;
int get _totalUsers => _selectedUsers.length;
void _groupNameListener() {
final name = _groupNameController.text;
if (mounted) {
setState(() {
_isGroupNameEmpty = name.isEmpty;
});
}
}
@override
void initState() {
super.initState();
_channel = StreamChat.of(context).client.channel('messaging');
_selectedUsers.addAll(widget.selectedUsers);
_groupNameController = TextEditingController()
..addListener(_groupNameListener);
}
@override
void dispose() {
_groupNameController?.clear();
_groupNameController?.removeListener(_groupNameListener);
_groupNameController?.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Color.fromRGBO(252, 252, 252, 1),
appBar: AppBar(
elevation: 1,
backgroundColor: Colors.white,
leading: const StreamBackButton(),
title: Text(
'Name of Group Chat',
style: TextStyle(
color: Colors.black,
fontSize: 16,
),
),
centerTitle: true,
bottom: PreferredSize(
preferredSize: Size.fromHeight(kToolbarHeight),
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 18, horizontal: 16),
child: Row(
children: [
Text(
'NAME',
style: TextStyle(
fontSize: 12,
color: Colors.black.withOpacity(0.5),
),
),
SizedBox(width: 16),
Expanded(
child: TextField(
controller: _groupNameController,
decoration: InputDecoration(
isDense: true,
border: InputBorder.none,
focusedBorder: InputBorder.none,
enabledBorder: InputBorder.none,
errorBorder: InputBorder.none,
disabledBorder: InputBorder.none,
contentPadding: const EdgeInsets.all(0),
hintText: 'Choose a group chat name',
hintStyle: TextStyle(
fontSize: 14, color: Colors.black.withOpacity(.5)),
),
),
),
],
),
),
),
actions: [
NeumorphicButton(
child: IconButton(
padding: const EdgeInsets.all(0),
icon: Icon(StreamIcons.check),
color: Color(0xFF006CFF),
onPressed: _isGroupNameEmpty
? null
: () async {
final groupName = _groupNameController.text;
final client = _channel.client;
_channel.extraData = {
'members': [
client.state.user.id,
..._selectedUsers.map((e) => e.id),
],
'name': groupName,
};
await _channel.watch();
Navigator.of(context)
..pop()
..pushReplacement(
MaterialPageRoute(
builder: (context) {
return StreamChannel(
child: ChannelPage(),
channel: _channel,
);
},
),
);
},
),
),
],
),
body: Column(
children: [
Container(
width: double.maxFinite,
color: Colors.grey.shade50,
child: Padding(
padding: const EdgeInsets.symmetric(
vertical: 8,
horizontal: 8,
),
child: Text(
'$_totalUsers ${_totalUsers > 1 ? 'Members' : 'Member'}',
style: TextStyle(
fontWeight: FontWeight.w500,
),
),
),
),
Expanded(
child: ListView.separated(
itemCount: _selectedUsers.length + 1,
separatorBuilder: (_, __) => Container(
height: 1,
color: Theme.of(context).brightness == Brightness.dark
? Colors.white.withOpacity(0.1)
: Colors.black.withOpacity(0.1),
),
itemBuilder: (_, index) {
if (index == _selectedUsers.length) {
return Container(
height: 1,
color: Theme.of(context).brightness == Brightness.dark
? Colors.white.withOpacity(0.1)
: Colors.black.withOpacity(0.1),
);
}
final user = _selectedUsers[index];
return ListTile(
key: ObjectKey(user),
leading: UserAvatar(
user: user,
constraints: BoxConstraints.tightFor(
width: 40,
height: 40,
),
),
title: Text(
user.name,
style: TextStyle(fontWeight: FontWeight.bold),
),
contentPadding: const EdgeInsets.symmetric(
horizontal: 12,
vertical: 8,
),
trailing: IconButton(
icon: Icon(
Icons.clear_rounded,
color: Colors.black,
),
padding: const EdgeInsets.all(0),
splashRadius: 24,
onPressed: () {
setState(() {
_selectedUsers.remove(user);
});
if (_selectedUsers.isEmpty) {
Navigator.pop(context);
}
},
),
);
},
),
),
],
),
);
}
}
example/lib/main.dart
+2 -820
View File
@@ -1,4 +1,3 @@
import 'dart:async';
import 'dart:io';
import 'package:example/choose_user_page.dart';
@@ -8,8 +7,8 @@ import 'package:flutter/material.dart';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
import 'chips_input_text_field.dart';
import 'neumorphic_button.dart';
import 'new_chat_screen.dart';
import 'new_group_chat_screen.dart';
import 'notifications_service.dart';
void main() async {
@@ -269,820 +268,3 @@ class ThreadPage extends StatelessWidget {
);
}
}
class NewChatScreen extends StatefulWidget {
@override
_NewChatScreenState createState() => _NewChatScreenState();
}
class _NewChatScreenState extends State<NewChatScreen> {
final _chipInputTextFieldStateKey =
GlobalKey<ChipInputTextFieldState<User>>();
TextEditingController _controller;
ChipInputTextFieldState get _chipInputTextFieldState =>
_chipInputTextFieldStateKey.currentState;
String _userNameQuery = '';
final _selectedUsers = <User>{};
final _searchFocusNode = FocusNode();
final _messageInputFocusNode = FocusNode();
bool _isSearchActive = false;
Channel channel;
Timer _debounce;
bool _showUserList = true;
void _userNameListener() {
if (_debounce?.isActive ?? false) _debounce.cancel();
_debounce = Timer(const Duration(milliseconds: 350), () {
if (mounted)
setState(() {
_userNameQuery = _controller.text;
_isSearchActive = _userNameQuery.isNotEmpty;
});
});
}
@override
void initState() {
super.initState();
channel = StreamChat.of(context).client.channel('messaging');
_controller = TextEditingController()..addListener(_userNameListener);
_searchFocusNode.addListener(() async {
if (_searchFocusNode.hasFocus && !_showUserList) {
if (channel.extraData['draft'] == true) {
await channel.stopWatching();
channel.dispose();
channel.client.state.channels.remove(channel.cid);
}
setState(() {
_showUserList = true;
});
}
});
_messageInputFocusNode.addListener(() async {
if (_messageInputFocusNode.hasFocus && _selectedUsers.isNotEmpty) {
final chatState = StreamChat.of(context);
channel = chatState.client.channel(
'messaging',
extraData: {
'members': [
..._selectedUsers.map((e) => e.id),
chatState.user.id,
],
'draft': true,
},
);
if (!chatState.client.state.channels.containsKey(channel.cid)) {
await channel.watch();
}
setState(() {
_showUserList = false;
});
}
});
}
@override
void dispose() {
_searchFocusNode.dispose();
_messageInputFocusNode.dispose();
_controller?.clear();
_controller?.removeListener(_userNameListener);
_controller?.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Color.fromRGBO(252, 252, 252, 1),
appBar: AppBar(
elevation: 0,
backgroundColor: Colors.white,
leading: const StreamBackButton(),
title: Text(
'New Chat',
style: TextStyle(
color: Colors.black,
fontSize: 16,
),
),
centerTitle: true,
),
body: StreamChannel(
showLoading: false,
channel: channel,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
ChipsInputTextField<User>(
key: _chipInputTextFieldStateKey,
controller: _controller,
focusNode: _searchFocusNode,
chipBuilder: (context, user) {
return Stack(
alignment: AlignmentDirectional.centerStart,
children: [
Container(
decoration: BoxDecoration(
color: Colors.black.withOpacity(0.05),
borderRadius: BorderRadius.circular(12),
),
padding: const EdgeInsets.only(left: 24),
child: Padding(
padding: const EdgeInsets.fromLTRB(8, 4, 12, 4),
child: Text(
user.name,
style: TextStyle(color: Colors.black),
),
),
),
UserAvatar(
user: user,
constraints: BoxConstraints.tightFor(
height: 24,
width: 24,
),
),
],
);
},
onChipAdded: (user) {
setState(() => _selectedUsers.add(user));
},
onChipRemoved: (user) {
setState(() => _selectedUsers.remove(user));
},
),
if (!_isSearchActive && !_selectedUsers.isNotEmpty)
Container(
child: InkWell(
onTap: () {
Navigator.push(
context,
MaterialPageRoute(builder: (_) => NewGroupChatScreen()),
);
},
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 8),
child: Row(
children: [
NeumorphicButton(
child: Icon(
StreamIcons.group,
color: Color(0xFF006CFF),
),
),
SizedBox(width: 8),
Text(
'Create a Group',
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 16,
),
),
],
),
),
),
),
if (_showUserList)
Container(
width: double.maxFinite,
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.centerLeft,
end: Alignment.centerRight,
colors: [
Colors.black.withOpacity(0.02),
Colors.white.withOpacity(0.05),
],
stops: [0, 1],
),
),
child: Padding(
padding: const EdgeInsets.symmetric(
vertical: 8,
horizontal: 8,
),
child: Text(
_isSearchActive
? "Matches for \"$_userNameQuery\""
: 'On the platform',
style: TextStyle(
color: Colors.black.withOpacity(0.5),
),
),
),
),
Expanded(
child: _showUserList
? UsersBloc(
child: UserListView(
selectedUsers: _selectedUsers,
groupAlphabetically: _isSearchActive ? false : true,
onUserTap: (user, _) {
_controller.clear();
if (!_selectedUsers.contains(user)) {
_chipInputTextFieldState
..addItem(user)
..pauseItemAddition();
} else {
_chipInputTextFieldState.removeItem(user);
}
},
pagination: PaginationParams(
limit: 25,
),
filter: {
if (_userNameQuery.isNotEmpty)
'name': {
r'$autocomplete': _userNameQuery,
},
'id': {
r'$ne': StreamChat.of(context).user.id,
},
},
sort: [
SortOption(
'name',
direction: 1,
),
],
emptyBuilder: (_) {
return LayoutBuilder(
builder: (context, viewportConstraints) {
return SingleChildScrollView(
physics: AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: Center(
child: Column(
children: [
Padding(
padding: const EdgeInsets.all(24),
child: Icon(
StreamIcons.search,
size: 96,
color: Colors.grey,
),
),
Text(
'No user matches these keywords...'),
],
),
),
),
);
},
);
},
),
)
: MessageListView(),
),
MessageInput(
focusNode: _messageInputFocusNode,
onMessageSent: (m) {
if (!m.isEphemeral) {
_updateChannelAndNavigate(context);
} else {
channel.on('message.new').first.then((_) {
_updateChannelAndNavigate(context);
});
}
},
),
],
),
),
);
}
void _updateChannelAndNavigate(BuildContext context) {
channel.update({
'draft': false,
});
Navigator.pushReplacement(
context,
MaterialPageRoute(
builder: (context) {
return StreamChannel(
child: ChannelPage(),
channel: channel,
);
},
),
);
}
}
class NewGroupChatScreen extends StatefulWidget {
@override
_NewGroupChatScreenState createState() => _NewGroupChatScreenState();
}
class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
TextEditingController _controller;
String _userNameQuery = '';
final _selectedUsers = <User>{};
bool _isSearchActive = false;
Timer _debounce;
void _userNameListener() {
if (_debounce?.isActive ?? false) _debounce.cancel();
_debounce = Timer(const Duration(milliseconds: 350), () {
if (mounted)
setState(() {
_userNameQuery = _controller.text;
_isSearchActive = _userNameQuery.isNotEmpty;
});
});
}
@override
void initState() {
super.initState();
_controller = TextEditingController()..addListener(_userNameListener);
}
@override
void dispose() {
_controller?.clear();
_controller?.removeListener(_userNameListener);
_controller?.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Color.fromRGBO(252, 252, 252, 1),
appBar: AppBar(
elevation: 1,
backgroundColor: Colors.white,
leading: const StreamBackButton(),
title: Text(
'Add Group Members',
style: TextStyle(
color: Colors.black,
fontSize: 16,
),
),
centerTitle: true,
actions: [
if (_selectedUsers.isNotEmpty)
IconButton(
icon: Icon(
StreamIcons.arrow_right,
color: Color(0xFF006CFF),
),
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (_) => GroupChatDetailsScreen(
selectedUsers: _selectedUsers.toList(growable: false),
),
),
);
},
)
],
),
body: UsersBloc(
child: Column(
children: [
Container(
height: 36,
decoration: BoxDecoration(
color: Colors.white,
border: Border.all(
color: Colors.grey.shade300,
),
borderRadius: BorderRadius.circular(24),
),
margin: const EdgeInsets.symmetric(
vertical: 8,
horizontal: 8,
),
child: TextField(
controller: _controller,
decoration: InputDecoration(
prefixIcon: Icon(
StreamIcons.search,
color: Colors.black,
size: 24,
),
hintText: 'Search',
hintStyle: TextStyle(
color: Colors.black.withOpacity(0.5),
fontSize: 14,
),
contentPadding: const EdgeInsets.all(0),
border: OutlineInputBorder(
borderSide: BorderSide.none,
borderRadius: BorderRadius.circular(24),
),
),
),
),
if (_selectedUsers.isNotEmpty)
Container(
height: 104,
child: ListView.separated(
scrollDirection: Axis.horizontal,
itemCount: _selectedUsers.length,
padding: const EdgeInsets.all(8),
separatorBuilder: (_, __) => SizedBox(width: 16),
itemBuilder: (_, index) {
final user = _selectedUsers.elementAt(index);
return Column(
children: [
Stack(
children: [
UserAvatar(
onlineIndicatorAlignment: Alignment(0.9, 0.9),
user: user,
showOnlineStatus: true,
borderRadius: BorderRadius.circular(32),
constraints: BoxConstraints.tightFor(
height: 64,
width: 64,
),
),
Positioned(
top: -4,
right: -4,
child: GestureDetector(
onTap: () {
if (_selectedUsers.contains(user)) {
setState(() => _selectedUsers.remove(user));
}
},
child: Container(
decoration: BoxDecoration(
color: Colors.white,
shape: BoxShape.circle,
border: Border.all(
color: Colors.grey.shade100,
),
),
child: Padding(
padding: const EdgeInsets.all(0.0),
child: Icon(
StreamIcons.close,
size: 24,
),
),
),
),
)
],
),
SizedBox(height: 4),
Text(
user.name.split(' ')[0],
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 12,
),
),
],
);
},
),
),
Container(
width: double.maxFinite,
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.centerLeft,
end: Alignment.centerRight,
colors: [
Colors.black.withOpacity(0.02),
Colors.white.withOpacity(0.05),
],
stops: [0, 1],
),
),
child: Padding(
padding: const EdgeInsets.symmetric(
vertical: 8,
horizontal: 8,
),
child: Text(
_isSearchActive
? 'Matches for \"$_userNameQuery\"'
: 'On the platform',
style: TextStyle(
color: Colors.black.withOpacity(0.5),
),
),
),
),
Expanded(
child: UserListView(
selectedUsers: _selectedUsers,
groupAlphabetically: _isSearchActive ? false : true,
onUserTap: (user, _) {
if (!_selectedUsers.contains(user)) {
setState(() {
_selectedUsers.add(user);
});
} else {
setState(() {
_selectedUsers.remove(user);
});
}
},
pagination: PaginationParams(
limit: 25,
),
filter: {
if (_userNameQuery.isNotEmpty)
'name': {
r'$autocomplete': _userNameQuery,
},
'id': {
r'$ne': StreamChat.of(context).user.id,
}
},
sort: [
SortOption(
'name',
direction: 1,
),
],
emptyBuilder: (_) {
return LayoutBuilder(
builder: (context, viewportConstraints) {
return SingleChildScrollView(
physics: AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: Center(
child: Column(
children: [
Padding(
padding: const EdgeInsets.all(24),
child: Icon(
StreamIcons.search,
size: 96,
color: Colors.grey,
),
),
Text('No user matches these keywords...'),
],
),
),
),
);
},
);
},
),
),
],
),
),
);
}
}
class GroupChatDetailsScreen extends StatefulWidget {
final List<User> selectedUsers;
const GroupChatDetailsScreen({
Key key,
@required this.selectedUsers,
}) : super(key: key);
@override
_GroupChatDetailsScreenState createState() => _GroupChatDetailsScreenState();
}
class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
final _selectedUsers = <User>[];
TextEditingController _groupNameController;
Channel _channel;
bool _isGroupNameEmpty = true;
int get _totalUsers => _selectedUsers.length;
void _groupNameListener() {
final name = _groupNameController.text;
if (mounted) {
setState(() {
_isGroupNameEmpty = name.isEmpty;
});
}
}
@override
void initState() {
super.initState();
_channel = StreamChat.of(context).client.channel('messaging');
_selectedUsers.addAll(widget.selectedUsers);
_groupNameController = TextEditingController()
..addListener(_groupNameListener);
}
@override
void dispose() {
_groupNameController?.clear();
_groupNameController?.removeListener(_groupNameListener);
_groupNameController?.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Color.fromRGBO(252, 252, 252, 1),
appBar: AppBar(
elevation: 1,
backgroundColor: Colors.white,
leading: const StreamBackButton(),
title: Text(
'Name of Group Chat',
style: TextStyle(
color: Colors.black,
fontSize: 16,
),
),
centerTitle: true,
bottom: PreferredSize(
preferredSize: Size.fromHeight(kToolbarHeight),
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 18, horizontal: 16),
child: Row(
children: [
Text(
'NAME',
style: TextStyle(
fontSize: 12,
color: Colors.black.withOpacity(0.5),
),
),
SizedBox(width: 16),
Expanded(
child: TextField(
controller: _groupNameController,
decoration: InputDecoration(
isDense: true,
border: InputBorder.none,
focusedBorder: InputBorder.none,
enabledBorder: InputBorder.none,
errorBorder: InputBorder.none,
disabledBorder: InputBorder.none,
contentPadding: const EdgeInsets.all(0),
hintText: 'Choose a group chat name',
hintStyle: TextStyle(
fontSize: 14, color: Colors.black.withOpacity(.5)),
),
),
),
],
),
),
),
actions: [
NeumorphicButton(
child: IconButton(
padding: const EdgeInsets.all(0),
icon: Icon(StreamIcons.check),
color: Color(0xFF006CFF),
onPressed: _isGroupNameEmpty
? null
: () async {
final groupName = _groupNameController.text;
final client = _channel.client;
_channel.extraData = {
'members': [
client.state.user.id,
..._selectedUsers.map((e) => e.id),
],
'name': groupName,
};
await _channel.watch();
Navigator.of(context)
..pop()
..pushReplacement(
MaterialPageRoute(
builder: (context) {
return StreamChannel(
child: ChannelPage(),
channel: _channel,
);
},
),
);
},
),
),
],
),
body: Column(
children: [
Container(
width: double.maxFinite,
color: Colors.grey.shade50,
child: Padding(
padding: const EdgeInsets.symmetric(
vertical: 8,
horizontal: 8,
),
child: Text(
'$_totalUsers ${_totalUsers > 1 ? 'Members' : 'Member'}',
style: TextStyle(
fontWeight: FontWeight.w500,
),
),
),
),
Expanded(
child: ListView.separated(
itemCount: _selectedUsers.length + 1,
separatorBuilder: (_, __) => Container(
height: 1,
color: Theme.of(context).brightness == Brightness.dark
? Colors.white.withOpacity(0.1)
: Colors.black.withOpacity(0.1),
),
itemBuilder: (_, index) {
if (index == _selectedUsers.length) {
return Container(
height: 1,
color: Theme.of(context).brightness == Brightness.dark
? Colors.white.withOpacity(0.1)
: Colors.black.withOpacity(0.1),
);
}
final user = _selectedUsers[index];
return ListTile(
key: ObjectKey(user),
leading: UserAvatar(
user: user,
constraints: BoxConstraints.tightFor(
width: 40,
height: 40,
),
),
title: Text(
user.name,
style: TextStyle(fontWeight: FontWeight.bold),
),
contentPadding: const EdgeInsets.symmetric(
horizontal: 12,
vertical: 8,
),
trailing: IconButton(
icon: Icon(
Icons.clear_rounded,
color: Colors.black,
),
padding: const EdgeInsets.all(0),
splashRadius: 24,
onPressed: () {
setState(() {
_selectedUsers.remove(user);
});
if (_selectedUsers.isEmpty) {
Navigator.pop(context);
}
},
),
);
},
),
),
],
),
);
}
}
example/lib/new_chat_screen.dart
+331
View File
@@ -0,0 +1,331 @@
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
import 'chips_input_text_field.dart';
import 'main.dart';
import 'neumorphic_button.dart';
import 'new_group_chat_screen.dart';
class NewChatScreen extends StatefulWidget {
@override
_NewChatScreenState createState() => _NewChatScreenState();
}
class _NewChatScreenState extends State<NewChatScreen> {
final _chipInputTextFieldStateKey =
GlobalKey<ChipInputTextFieldState<User>>();
TextEditingController _controller;
ChipInputTextFieldState get _chipInputTextFieldState =>
_chipInputTextFieldStateKey.currentState;
String _userNameQuery = '';
final _selectedUsers = <User>{};
final _searchFocusNode = FocusNode();
final _messageInputFocusNode = FocusNode();
bool _isSearchActive = false;
Channel channel;
Timer _debounce;
bool _showUserList = true;
void _userNameListener() {
if (_debounce?.isActive ?? false) _debounce.cancel();
_debounce = Timer(const Duration(milliseconds: 350), () {
if (mounted)
setState(() {
_userNameQuery = _controller.text;
_isSearchActive = _userNameQuery.isNotEmpty;
});
});
}
@override
void initState() {
super.initState();
channel = StreamChat.of(context).client.channel('messaging');
_controller = TextEditingController()..addListener(_userNameListener);
_searchFocusNode.addListener(() async {
if (_searchFocusNode.hasFocus && !_showUserList) {
if (channel.extraData['draft'] == true) {
await channel.stopWatching();
channel.dispose();
channel.client.state.channels.remove(channel.cid);
}
setState(() {
_showUserList = true;
});
}
});
_messageInputFocusNode.addListener(() async {
if (_messageInputFocusNode.hasFocus && _selectedUsers.isNotEmpty) {
final chatState = StreamChat.of(context);
channel = chatState.client.channel(
'messaging',
extraData: {
'members': [
..._selectedUsers.map((e) => e.id),
chatState.user.id,
],
'draft': true,
},
);
if (!chatState.client.state.channels.containsKey(channel.cid)) {
await channel.watch();
}
setState(() {
_showUserList = false;
});
}
});
}
@override
void dispose() {
_searchFocusNode.dispose();
_messageInputFocusNode.dispose();
_controller?.clear();
_controller?.removeListener(_userNameListener);
_controller?.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Color.fromRGBO(252, 252, 252, 1),
appBar: AppBar(
elevation: 0,
backgroundColor: Colors.white,
leading: const StreamBackButton(),
title: Text(
'New Chat',
style: TextStyle(
color: Colors.black,
fontSize: 16,
),
),
centerTitle: true,
),
body: StreamChannel(
showLoading: false,
channel: channel,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
ChipsInputTextField<User>(
key: _chipInputTextFieldStateKey,
controller: _controller,
focusNode: _searchFocusNode,
chipBuilder: (context, user) {
return Stack(
alignment: AlignmentDirectional.centerStart,
children: [
Container(
decoration: BoxDecoration(
color: Colors.black.withOpacity(0.05),
borderRadius: BorderRadius.circular(12),
),
padding: const EdgeInsets.only(left: 24),
child: Padding(
padding: const EdgeInsets.fromLTRB(8, 4, 12, 4),
child: Text(
user.name,
style: TextStyle(color: Colors.black),
),
),
),
UserAvatar(
user: user,
constraints: BoxConstraints.tightFor(
height: 24,
width: 24,
),
),
],
);
},
onChipAdded: (user) {
setState(() => _selectedUsers.add(user));
},
onChipRemoved: (user) {
setState(() => _selectedUsers.remove(user));
},
),
if (!_isSearchActive && !_selectedUsers.isNotEmpty)
Container(
child: InkWell(
onTap: () {
Navigator.push(
context,
MaterialPageRoute(builder: (_) => NewGroupChatScreen()),
);
},
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 8),
child: Row(
children: [
NeumorphicButton(
child: Icon(
StreamIcons.group,
color: Color(0xFF006CFF),
),
),
SizedBox(width: 8),
Text(
'Create a Group',
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 16,
),
),
],
),
),
),
),
if (_showUserList)
Container(
width: double.maxFinite,
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.centerLeft,
end: Alignment.centerRight,
colors: [
Colors.black.withOpacity(0.02),
Colors.white.withOpacity(0.05),
],
stops: [0, 1],
),
),
child: Padding(
padding: const EdgeInsets.symmetric(
vertical: 8,
horizontal: 8,
),
child: Text(
_isSearchActive
? "Matches for \"$_userNameQuery\""
: 'On the platform',
style: TextStyle(
color: Colors.black.withOpacity(0.5),
),
),
),
),
Expanded(
child: _showUserList
? UsersBloc(
child: UserListView(
selectedUsers: _selectedUsers,
groupAlphabetically: _isSearchActive ? false : true,
onUserTap: (user, _) {
_controller.clear();
if (!_selectedUsers.contains(user)) {
_chipInputTextFieldState
..addItem(user)
..pauseItemAddition();
} else {
_chipInputTextFieldState.removeItem(user);
}
},
pagination: PaginationParams(
limit: 25,
),
filter: {
if (_userNameQuery.isNotEmpty)
'name': {
r'$autocomplete': _userNameQuery,
},
'id': {
r'$ne': StreamChat.of(context).user.id,
},
},
sort: [
SortOption(
'name',
direction: 1,
),
],
emptyBuilder: (_) {
return LayoutBuilder(
builder: (context, viewportConstraints) {
return SingleChildScrollView(
physics: AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: Center(
child: Column(
children: [
Padding(
padding: const EdgeInsets.all(24),
child: Icon(
StreamIcons.search,
size: 96,
color: Colors.grey,
),
),
Text(
'No user matches these keywords...'),
],
),
),
),
);
},
);
},
),
)
: MessageListView(),
),
MessageInput(
focusNode: _messageInputFocusNode,
onMessageSent: (m) {
if (!m.isEphemeral) {
_updateChannelAndNavigate(context);
} else {
channel.on('message.new').first.then((_) {
_updateChannelAndNavigate(context);
});
}
},
),
],
),
),
);
}
void _updateChannelAndNavigate(BuildContext context) {
channel.update({
'draft': false,
});
Navigator.pushReplacement(
context,
MaterialPageRoute(
builder: (context) {
return StreamChannel(
child: ChannelPage(),
channel: channel,
);
},
),
);
}
}
example/lib/new_group_chat_screen.dart
+285
View File
@@ -0,0 +1,285 @@
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
import 'group_chat_details_screen.dart';
class NewGroupChatScreen extends StatefulWidget {
@override
_NewGroupChatScreenState createState() => _NewGroupChatScreenState();
}
class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
TextEditingController _controller;
String _userNameQuery = '';
final _selectedUsers = <User>{};
bool _isSearchActive = false;
Timer _debounce;
void _userNameListener() {
if (_debounce?.isActive ?? false) _debounce.cancel();
_debounce = Timer(const Duration(milliseconds: 350), () {
if (mounted)
setState(() {
_userNameQuery = _controller.text;
_isSearchActive = _userNameQuery.isNotEmpty;
});
});
}
@override
void initState() {
super.initState();
_controller = TextEditingController()..addListener(_userNameListener);
}
@override
void dispose() {
_controller?.clear();
_controller?.removeListener(_userNameListener);
_controller?.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Color.fromRGBO(252, 252, 252, 1),
appBar: AppBar(
elevation: 1,
backgroundColor: Colors.white,
leading: const StreamBackButton(),
title: Text(
'Add Group Members',
style: TextStyle(
color: Colors.black,
fontSize: 16,
),
),
centerTitle: true,
actions: [
if (_selectedUsers.isNotEmpty)
IconButton(
icon: Icon(
StreamIcons.arrow_right,
color: Color(0xFF006CFF),
),
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (_) => GroupChatDetailsScreen(
selectedUsers: _selectedUsers.toList(growable: false),
),
),
);
},
)
],
),
body: UsersBloc(
child: Column(
children: [
Container(
height: 36,
decoration: BoxDecoration(
color: Colors.white,
border: Border.all(
color: Colors.grey.shade300,
),
borderRadius: BorderRadius.circular(24),
),
margin: const EdgeInsets.symmetric(
vertical: 8,
horizontal: 8,
),
child: TextField(
controller: _controller,
decoration: InputDecoration(
prefixIcon: Icon(
StreamIcons.search,
color: Colors.black,
size: 24,
),
hintText: 'Search',
hintStyle: TextStyle(
color: Colors.black.withOpacity(0.5),
fontSize: 14,
),
contentPadding: const EdgeInsets.all(0),
border: OutlineInputBorder(
borderSide: BorderSide.none,
borderRadius: BorderRadius.circular(24),
),
),
),
),
if (_selectedUsers.isNotEmpty)
Container(
height: 104,
child: ListView.separated(
scrollDirection: Axis.horizontal,
itemCount: _selectedUsers.length,
padding: const EdgeInsets.all(8),
separatorBuilder: (_, __) => SizedBox(width: 16),
itemBuilder: (_, index) {
final user = _selectedUsers.elementAt(index);
return Column(
children: [
Stack(
children: [
UserAvatar(
onlineIndicatorAlignment: Alignment(0.9, 0.9),
user: user,
showOnlineStatus: true,
borderRadius: BorderRadius.circular(32),
constraints: BoxConstraints.tightFor(
height: 64,
width: 64,
),
),
Positioned(
top: -4,
right: -4,
child: GestureDetector(
onTap: () {
if (_selectedUsers.contains(user)) {
setState(() => _selectedUsers.remove(user));
}
},
child: Container(
decoration: BoxDecoration(
color: Colors.white,
shape: BoxShape.circle,
border: Border.all(
color: Colors.grey.shade100,
),
),
child: Padding(
padding: const EdgeInsets.all(0.0),
child: Icon(
StreamIcons.close,
size: 24,
),
),
),
),
)
],
),
SizedBox(height: 4),
Text(
user.name.split(' ')[0],
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 12,
),
),
],
);
},
),
),
Container(
width: double.maxFinite,
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.centerLeft,
end: Alignment.centerRight,
colors: [
Colors.black.withOpacity(0.02),
Colors.white.withOpacity(0.05),
],
stops: [0, 1],
),
),
child: Padding(
padding: const EdgeInsets.symmetric(
vertical: 8,
horizontal: 8,
),
child: Text(
_isSearchActive
? 'Matches for \"$_userNameQuery\"'
: 'On the platform',
style: TextStyle(
color: Colors.black.withOpacity(0.5),
),
),
),
),
Expanded(
child: UserListView(
selectedUsers: _selectedUsers,
groupAlphabetically: _isSearchActive ? false : true,
onUserTap: (user, _) {
if (!_selectedUsers.contains(user)) {
setState(() {
_selectedUsers.add(user);
});
} else {
setState(() {
_selectedUsers.remove(user);
});
}
},
pagination: PaginationParams(
limit: 25,
),
filter: {
if (_userNameQuery.isNotEmpty)
'name': {
r'$autocomplete': _userNameQuery,
},
'id': {
r'$ne': StreamChat.of(context).user.id,
}
},
sort: [
SortOption(
'name',
direction: 1,
),
],
emptyBuilder: (_) {
return LayoutBuilder(
builder: (context, viewportConstraints) {
return SingleChildScrollView(
physics: AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: Center(
child: Column(
children: [
Padding(
padding: const EdgeInsets.all(24),
child: Icon(
StreamIcons.search,
size: 96,
color: Colors.grey,
),
),
Text('No user matches these keywords...'),
],
),
),
),
);
},
);
},
),
),
],
),
),
);
}
}
example/pubspec.yaml
+1 -1
View File
@@ -1,6 +1,6 @@
name: example
description: A new Flutter project.
version: 1.0.62+64
version: 1.0.63+65
environment:
sdk: ">=2.2.2 <3.0.0"