Encrypted messaging app
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5.4 KiB

import 'package:flutter/material.dart';
import '/models/conversations.dart';
import '/models/friends.dart';
import '/utils/storage/conversations.dart';
import '/views/main/conversation/create_add_users_list.dart';
import '/views/main/conversation/detail.dart';
class ConversationAddFriendsList extends StatefulWidget {
final List<Friend> friends;
final Function(List<Friend> friendsSelected) saveCallback;
const ConversationAddFriendsList({
Key? key,
required this.friends,
required this.saveCallback,
}) : super(key: key);
@override
State<ConversationAddFriendsList> createState() => _ConversationAddFriendsListState();
}
class _ConversationAddFriendsListState extends State<ConversationAddFriendsList> {
List<Friend> friends = [];
List<Friend> friendsSelected = [];
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
elevation: 0,
automaticallyImplyLeading: false,
flexibleSpace: SafeArea(
child: Container(
padding: const EdgeInsets.only(right: 16),
child: Row(
children: <Widget>[
IconButton(
onPressed: (){
Navigator.pop(context);
},
icon: const Icon(Icons.arrow_back),
),
const SizedBox(width: 2,),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
friendsSelected.isEmpty ?
'Select Friends' :
'${friendsSelected.length} Friends Selected',
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.w600
),
),
],
),
),
],
),
),
),
),
body: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Padding(
padding: const EdgeInsets.only(top: 20,left: 16,right: 16),
child: TextField(
decoration: const InputDecoration(
hintText: "Search...",
prefixIcon: Icon(
Icons.search,
size: 20
),
),
onChanged: (value) => filterSearchResults(value.toLowerCase())
),
),
Padding(
padding: const EdgeInsets.only(top: 0,left: 16,right: 16),
child: list(),
),
],
),
floatingActionButton: Padding(
padding: const EdgeInsets.only(right: 10, bottom: 10),
child: FloatingActionButton(
onPressed: () {
widget.saveCallback(friendsSelected);
setState(() {
friendsSelected = [];
});
},
backgroundColor: Theme.of(context).colorScheme.primary,
child: friendsSelected.isEmpty ?
const Text('Skip') :
const Icon(Icons.add, size: 30),
),
),
);
}
void filterSearchResults(String query) {
List<Friend> dummySearchList = [];
dummySearchList.addAll(widget.friends);
if(query.isNotEmpty) {
List<Friend> dummyListData = [];
for (Friend friend in dummySearchList) {
if (friend.username.toLowerCase().contains(query)) {
dummyListData.add(friend);
}
}
setState(() {
friends.clear();
friends.addAll(dummyListData);
});
return;
}
setState(() {
friends.clear();
friends.addAll(widget.friends);
});
}
@override
void initState() {
super.initState();
friends.addAll(widget.friends);
setState(() {});
}
Widget list() {
if (friends.isEmpty) {
return const Center(
child: Text('No Friends'),
);
}
return ListView.builder(
itemCount: friends.length,
shrinkWrap: true,
padding: const EdgeInsets.only(top: 16),
physics: const BouncingScrollPhysics(),
itemBuilder: (context, i) {
return ConversationAddFriendItem(
friend: friends[i],
isSelected: (bool value) {
setState(() {
widget.friends[i].selected = value;
if (value) {
friendsSelected.add(friends[i]);
return;
}
friendsSelected.remove(friends[i]);
});
}
);
},
);
}
}