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feat: 💬chat-feature using firebase #43

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feat: 💬chat-feature using firebase #43

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156 changes: 156 additions & 0 deletions lib/directory/chat_screen.dart
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Original file line number Diff line number Diff line change
@@ -0,0 +1,156 @@
import 'dart:async';
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:intl/intl.dart';
import 'package:timeago/timeago.dart' as timeago;

class ChatScreen extends StatefulWidget {
static const routeName = '/ChatScreen';

@override
_ChatScreenState createState() => _ChatScreenState();
}

class _ChatScreenState extends State<ChatScreen> {
final TextEditingController textEditingController = TextEditingController();
final FirebaseAuth auth = FirebaseAuth.instance;
final ScrollController _scrollController = ScrollController();

void onSendMessage(String content) async {

if (content.trim() != '') {
textEditingController.clear();

final user = auth.currentUser.email;
CollectionReference messages =
FirebaseFirestore.instance.collection('messages');

await messages
.add({'content': content, 'by': user, 'time': DateTime.now()});

_scrollController.animateTo(0.0, duration: Duration(milliseconds: 300), curve: Curves.easeOut);
} else {
Fluttertoast.showToast(msg: 'Nothing to send!');
}
}

Widget futureBuilder() {
return StreamBuilder(
stream: FirebaseFirestore.instance
.collection('messages')
.orderBy('time', descending: false)
.snapshots(),
builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
switch (snapshot.connectionState) {
case ConnectionState.none:
return Center(
heightFactor: 10,
widthFactor: 10,
child: CircularProgressIndicator(
valueColor: AlwaysStoppedAnimation(Colors.indigo[600]),
),
);

case ConnectionState.waiting:
return Center(
child: CircularProgressIndicator(
valueColor: AlwaysStoppedAnimation(Colors.indigo[600]),
),
);

default:
if (snapshot.hasError)
return new Text('Error: ${snapshot.error}');
else
return new ListView.builder(
controller: _scrollController,
itemCount: snapshot.data.docs.length,
itemBuilder: (BuildContext context, int index) {
DocumentSnapshot doc = snapshot.data.docs[index];
return new ListTile(
title: Text(
doc["by"],
textAlign: TextAlign.left,
style: TextStyle(
fontSize: 12.0, color: Colors.grey[500]),
),
subtitle: Text(
doc["content"],
textAlign: TextAlign.left,
style: TextStyle(
color: Colors.indigo[700],
fontSize: 18.0),
),
trailing: Text(
timeago.format(doc["time"].toDate()),
style: TextStyle(
fontSize: 12.0, color: Colors.grey[500]),
),
contentPadding: EdgeInsets.symmetric(
horizontal: 15.0, vertical: 4.0),
);
});
}
});
}

@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Colors.indigo[700],
title: Text("Chat"),
),
body: Stack(
children: <Widget>[
futureBuilder(),
Align(
alignment: Alignment.bottomLeft,
child: Container(
padding: EdgeInsets.only(left: 10, bottom: 10, top: 10),
height: 60,
width: double.infinity,
color: Colors.white,
child: Row(
children: <Widget>[
SizedBox(
width: 15,
),
Expanded(
child: TextField(
controller: textEditingController,
decoration: InputDecoration(
hintText: "Type your message here..",
hintStyle: TextStyle(color: Colors.grey),
border: InputBorder.none),
),
),
SizedBox(
width: 15,
),
FloatingActionButton(
onPressed: () {
setState(() {
onSendMessage(textEditingController.text);
});
},
child: Icon(
Icons.send,
color: Colors.white,
size: 18,
),
backgroundColor: Colors.indigo[700],
elevation: 0,
),
],
),
),
),
],
),
);
}
}
93 changes: 48 additions & 45 deletions lib/directory/directory.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:campusbuddy/directory/blank.dart';
import 'directory_list_widget.dart';

import 'chat_screen.dart';
class Directory extends StatefulWidget {
Directory({Key key}) : super(key: key);

Expand All @@ -15,79 +15,82 @@ class Directory extends StatefulWidget {
}

class _DirectoryState extends State<Directory> {
int _currentIndex=0;
int _currentIndex = 0;
final _selectedBgColor = Colors.indigo[900];
final _unselectedBgColor = Colors.indigo[700];
final List<Widget> _children =[
final List<Widget> _children = [
DirectoryList(),
PostList(),
//Blank()
Blank()
];

void onTabTapped(int index){
void onTabTapped(int index) {
setState(() {
_currentIndex=index;
_currentIndex = index;
});
}

Color _getBgColor(int index)=>
_currentIndex==index ? _selectedBgColor:_unselectedBgColor;
Color _getBgColor(int index) =>
_currentIndex == index ? _selectedBgColor : _unselectedBgColor;

Widget _buildIcon(IconData iconData, String text, int index)=>
Container(
Widget _buildIcon(IconData iconData, String text, int index) => Container(
width: double.infinity,
height: kBottomNavigationBarHeight,
child: InkWell(
onTap: ()=>onTabTapped(index),
onTap: () => onTabTapped(index),
child: Material(
color: _getBgColor(index),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Icon(iconData,color: Colors.white,),
Text(text,style: TextStyle(color: Colors.white,
fontFamily: 'Roboto'))
Icon(
iconData,
color: Colors.white,
),
Text(text,
style: TextStyle(color: Colors.white, fontFamily: 'Roboto'))
],
),
),
),
);



@override
Widget build(BuildContext context) {
return
Scaffold(

body: _children[_currentIndex],

bottomNavigationBar: SizedBox(
child: BottomNavigationBar(
selectedFontSize: 0,
showSelectedLabels: false,
showUnselectedLabels: false,
type: BottomNavigationBarType.fixed,
items: [
BottomNavigationBarItem(
icon: _buildIcon(Icons.phone, 'Contacts', 0),
title: SizedBox.shrink(),
),
BottomNavigationBarItem(
title: SizedBox.fromSize(),
icon: _buildIcon(Icons.notifications_active, 'Notifications', 1)),
BottomNavigationBarItem(
icon: _buildIcon(Icons.more_horiz, 'More', 2),
return Scaffold(
body: _children[_currentIndex],
floatingActionButton: FloatingActionButton(
onPressed: () {
Navigator.of(context).pushNamed(ChatScreen.routeName);
},
child: const Icon(Icons.chat_bubble),
backgroundColor: Colors.indigo[700],
),
bottomNavigationBar: SizedBox(
child: BottomNavigationBar(
selectedFontSize: 0,
showSelectedLabels: false,
showUnselectedLabels: false,
type: BottomNavigationBarType.fixed,
items: [
BottomNavigationBarItem(
icon: _buildIcon(Icons.phone, 'Contacts', 0),
title: SizedBox.shrink(),
),
BottomNavigationBarItem(
title: SizedBox.fromSize(),
)
],
currentIndex: _currentIndex,
onTap: onTabTapped,
),

icon:
_buildIcon(Icons.notifications_active, 'Notifications', 1)),
BottomNavigationBarItem(
icon: _buildIcon(Icons.more_horiz, 'More', 2),
title: SizedBox.fromSize(),
)
],
currentIndex: _currentIndex,
onTap: onTabTapped,
),
);

),
);
}
}
}
7 changes: 5 additions & 2 deletions lib/generate_route.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ import 'package:campusbuddy/post_screen/posts.dart';
import 'package:campusbuddy/screens/department_list.dart';
import 'post_screen/events.dart';
import 'package:flutter/material.dart';

import 'package:campusbuddy/directory/chat_screen.dart';
class RouteGenerator {
static Route<dynamic> generateRoute(RouteSettings settings) {
switch (settings.name) {
Expand Down Expand Up @@ -47,7 +47,10 @@ class RouteGenerator {
final Deets deets = settings.arguments;
return MaterialPageRoute(
builder: (_) => Posts(deets));
default:
case ChatScreen.routeName:
return MaterialPageRoute(
builder: (_) => ChatScreen());
default:
return MaterialPageRoute(builder: (_) => Blank());
}
}
Expand Down