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sembast_screen.dart
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sembast_screen.dart
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import 'package:flutter/material.dart';
import 'package:local_storage/sembast/sembast_db.dart';
import 'package:local_storage/sqflite/sqflite_screen.dart';
import 'package:local_storage/sqflite/user.dart';
class SembastScreen extends StatefulWidget {
@override
_SembastScreenState createState() => _SembastScreenState();
}
class _SembastScreenState extends State<SembastScreen> {
final UserDao _userDao = UserDao();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Sembast Example'),
),
body: Center(
child: _buildUserListViewBuilder(),
),
floatingActionButton: FloatingActionButton(
onPressed: _showAddUserDialog,
tooltip: 'Add user',
child: Icon(Icons.add), //Change Icon
),
);
}
Widget _buildUserListViewBuilder() {
return FutureBuilder<List<User>>(
future: _userDao.getAllSortedByName(),
builder: (context, snapshot) {
if (snapshot.hasData && snapshot.data.length > 0) {
return ListView.builder(
itemCount: snapshot.data.length,
itemBuilder: (context, index) {
User user = snapshot.data[index];
return Dismissible(
key: UniqueKey(),
onDismissed: (_) => _removeUser(user),
child: ListTile(
title: Text(user.name),
subtitle: Text(user.email),
),
);
});
}
return Container(
child: Text('No user.'),
);
},
);
}
void _showAddUserDialog() {
showDialog(
context: context,
barrierDismissible: false,
builder: (BuildContext dialogContext) {
return AddUserDialog(callback: _addUser);
},
);
}
void _addUser(String username, String email) {
_userDao.insert(User(username, email));
setState(() {});
}
void _removeUser(User user) {
_userDao.delete(user);
setState(() {});
}
}