pubspec.yaml
dependencies:
flutter:
sdk: flutter
cupertino_icons: ^0.1.2
sqflite:
path_provider:
---------------------------------------------
Inside lib folder these files we added.
main.dart :-
import 'package:flutter/material.dart';
import 'database_helper.dart';
import 'AllDatalist.dart';
import 'user.dart';
void main() => runApp(MyApp());
List<User> country;
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
TextEditingController firstNameEditController =
TextEditingController();
TextEditingController lastNameEditController =
TextEditingController();
TextEditingController dateOfBirthEditController =
TextEditingController();
var db = new DatabaseHelper();
Future _incrementCounter() async {
print("dataGet :" + db.getUser().toString());
var email = await db.getUser();
if (email.length > 0) {
Navigator.push(context,
MaterialPageRoute(builder: (context) => UserListPage(email)));
} else {
print("Please add atleast one data");
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
TextFormField(
controller: firstNameEditController,
decoration: InputDecoration(hintText: "email"),
),
TextFormField(
controller: lastNameEditController,
decoration: InputDecoration(hintText: "password"),
),
TextFormField(
controller: dateOfBirthEditController,
decoration: InputDecoration(hintText: "Date of birth"),
),
RaisedButton(
onPressed: () {
if (firstNameEditController.text != "" &&
lastNameEditController.text != "" &&
dateOfBirthEditController.text != "") {
saveData();
} else {
print("All field are necessary");
}
},
child: Text("submit"),
)
],
),
),
floatingActionButton: Stack(
children: <Widget>[
Align(
alignment: Alignment.bottomRight,
child: FloatingActionButton.extended(
icon: Icon(Icons.assignment),
label: Text("All List"),
onPressed: _incrementCounter,
tooltip: 'Increment',
),
),
],
));
}
Future saveData() async {
var db = new DatabaseHelper();
var user = new User(firstNameEditController.text,
lastNameEditController.text, dateOfBirthEditController.text);
await db.saveUser(user);
}
}
--------------------------------------
database_helper.dart :-
import 'dart:async';
import 'dart:io' as io;
import 'package:path/path.dart';
import 'package:path_provider/path_provider.dart';
import 'package:sqflite/sqflite.dart';
import 'user.dart';
class DatabaseHelper {
static final DatabaseHelper _instance = new DatabaseHelper.internal();
factory DatabaseHelper() => _instance;
static Database _db;
Future<Database> get db async {
if (_db != null) return _db;
_db = await initDb();
return _db;
}
DatabaseHelper.internal();
initDb() async {
io.Directory documentsDirectory = await getApplicationDocumentsDirectory();
String path = join(documentsDirectory.path, "main.db");
var theDb = await openDatabase(path, version: 1, onCreate: _onCreate);
return theDb;
}
void _onCreate(Database db, int version) async {
// When creating the db, create the table
await db.execute(
"CREATE TABLE User(id INTEGER PRIMARY KEY, firstname TEXT, lastname TEXT, dob TEXT)");
}
Future<int> saveUser(User user) async {
var dbClient = await db;
int res = await dbClient.insert("User", user.toMap());
return res;
}
Future<List<User>> getUser() async {
var dbClient = await db;
List<Map> list = await dbClient.rawQuery('SELECT * FROM User');
List<User> employees = new List();
for (int i = 0; i < list.length; i++) {
var user =
new User(list[i]["firstname"], list[i]["lastname"], list[i]["dob"]);
user.setUserId(list[i]["id"]);
employees.add(user);
}
print(employees.length);
return employees;
}
Future<int> deleteUsers(User user) async {
var dbClient = await db;
int res =
await dbClient.rawDelete('DELETE FROM User WHERE id = ?', [user.id]);
return res;
}
Future<bool> update(User user) async {
var dbClient = await db;
int res = await dbClient.update("User", user.toMap(),
where: "id = ?", whereArgs: <int>[user.id]);
return res > 0 ? true : false;
}
}
----------------------------------------
user.dart :-
class User {
int id;
String _firstName;
String _lastName;
String _dob;
User(this._firstName, this._lastName, this._dob);
User.map(dynamic obj) {
this._firstName = obj["firstname"];
this._lastName = obj["lastname"];
this._dob = obj["dob"];
}
String get firstName => _firstName;
String get lastName => _lastName;
String get dob => _dob;
Map<String, dynamic> toMap() {
var map = new Map<String, dynamic>();
map["firstname"] = _firstName;
map["lastname"] = _lastName;
map["dob"] = _dob;
return map;
}
void setUserId(int id) {
this.id = id;
}
}
--------------------------------------
AllDatalist.dart :-
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'delete.dart';
import 'update.dart';
import 'user.dart';
class UserListPage extends StatefulWidget {
List<User> userData;
UserListPage(this.userData);
@override
UserList createState() => new UserList(userData);
}
class UserList extends State<UserListPage> {
List<User> userData;
UserList(this.userData);
@override
void initState() {
// TODO: implement initState
super.initState();
}
@override
@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: AppBar(
centerTitle: true,
title: Text("All Data"),
),
backgroundColor: Colors.white,
body: ListView.builder(
itemCount: userData == null ? 0 : userData.length,
itemBuilder: (BuildContext context, int index) {
return new Card(
child: new Container(
child: new Center(
child: new Row(
children: <Widget>[
new CircleAvatar(
radius: 30.0,
child: new Text(getShortName(userData[index])),
backgroundColor: const Color(0xFF20283e),
),
new Expanded(
child: new Padding(
padding: EdgeInsets.all(10.0),
child: new Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
new Text(
userData[index].firstName +
" " +
userData[index].lastName,
// set some style to text
style: new TextStyle(
fontSize: 20.0,
color: Colors.lightBlueAccent),
),
new Text(
"DATE: " + userData[index].dob,
// set some style to text
style: new TextStyle(
fontSize: 20.0, color: Colors.amber),
),
],
),
),
),
new Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
new IconButton(
icon: const Icon(
Icons.edit,
color: const Color(0xFF167F67),
),
onPressed: () {
Navigator.pushReplacement(
context,
MaterialPageRoute(
builder: (context) => UpdatePage(
userData[index].firstName,
userData[index].lastName,
userData[index].dob,
userData[index].id)));
}
),
new IconButton(
icon: const Icon(Icons.delete_forever,
color: const Color(0xFF167F67)),
onPressed: () {
Navigator.pushReplacement(
context,
MaterialPageRoute(
builder: (context) => DeletePage(
userData[index].firstName,
userData[index].lastName,
userData[index].dob,
userData[index].id)));
}
// homePresenter.delete(userData[index]),
),
],
),
],
),
),
padding: const EdgeInsets.fromLTRB(10.0, 0.0, 0.0, 0.0)),
);
}),
);
}
String getShortName(User user) {
String shortName = "";
if (!user.firstName.isEmpty) {
shortName = user.firstName.substring(0, 1) + ".";
}
if (!user.lastName.isEmpty) {
shortName = shortName + user.lastName.substring(0, 1);
}
return shortName;
}
}
----------------------------------
delete.dart :-
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'AllDatalist.dart';
import 'database_helper.dart';
import 'user.dart';
class DeletePage extends StatefulWidget {
final String firstName, lastName, dob;
final int id;
DeletePage(this.firstName, this.lastName, this.dob, this.id);
@override
_DeletePage createState() => new _DeletePage(firstName, lastName, dob, id);
}
class _DeletePage extends State<DeletePage> {
final String firstName, lastName, dob;
final int id;
TextEditingController firstNameEditController = TextEditingController();
TextEditingController lastNameEditController = TextEditingController();
TextEditingController dateOfBirthEditController = TextEditingController();
_DeletePage(this.firstName, this.lastName, this.dob, this.id);
@override
void initState() {
// TODO: implement initState
super.initState();
firstNameEditController.text = firstName;
lastNameEditController.text = lastName;
dateOfBirthEditController.text = dob;
}
@override
@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: AppBar(
centerTitle: true,
title: Text("All Data"),
),
backgroundColor: Colors.white,
body: Center(
child: Column(
children: <Widget>[
TextFormField(
controller: firstNameEditController,
decoration: InputDecoration(hintText: "Email"),
),
TextFormField(
controller: lastNameEditController,
decoration: InputDecoration(hintText: "Password"),
),
TextFormField(
controller: dateOfBirthEditController,
decoration: InputDecoration(hintText: "Date of birth"),
),
RaisedButton(
onPressed: () {
if (firstNameEditController.text != "" &&
lastNameEditController.text != "" &&
dateOfBirthEditController.text != "") {
editData(context);
} else {
print("All field are necessary");
}
},
child: Text("submit"),
)
],
),
),
);
}
Future editData(context) async {
var db = new DatabaseHelper();
var user = new User(firstNameEditController.text,
lastNameEditController.text, dateOfBirthEditController.text);
user.setUserId(id);
await db.deleteUsers(user);
print("delete data successfully");
var dataList = await db.getUser();
if (dataList.length > 0) {
Navigator.push(context,
MaterialPageRoute(builder: (context) => UserListPage(dataList)));
} else {
Navigator.pop(context);
}
}
}
---------------------------------
update.dart :-
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'AllDatalist.dart';
import 'database_helper.dart';
import 'user.dart';
class UpdatePage extends StatefulWidget {
final String firstName, lastName, dob;
final int id;
UpdatePage(this.firstName, this.lastName, this.dob, this.id);
@override
_UpdatePage createState() => new _UpdatePage(firstName, lastName, dob, id);
}
class _UpdatePage extends State<UpdatePage> {
final String firstName, lastName, dob;
final int id;
TextEditingController firstNameEditController = TextEditingController();
TextEditingController lastNameEditController = TextEditingController();
TextEditingController dateOfBirthEditController = TextEditingController();
_UpdatePage(this.firstName, this.lastName, this.dob, this.id);
@override
void initState() {
// TODO: implement initState
super.initState();
firstNameEditController.text = firstName;
lastNameEditController.text = lastName;
dateOfBirthEditController.text = dob;
}
@override
@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: AppBar(
centerTitle: true,
title: Text("All Data"),
),
backgroundColor: Colors.white,
body: Center(
child: Column(
children: <Widget>[
TextFormField(
controller: firstNameEditController,
decoration: InputDecoration(hintText: "Email"),
),
TextFormField(
controller: lastNameEditController,
decoration: InputDecoration(hintText: "Password"),
),
TextFormField(
controller: dateOfBirthEditController,
decoration: InputDecoration(hintText: "Date of birth"),
),
RaisedButton(
onPressed: () {
if (firstNameEditController.text != "" &&
lastNameEditController.text != "" &&
dateOfBirthEditController.text != "") {
updateData(context);
} else {
print("All field are necessary");
}
},
child: Text("submit"),
)
],
),
),
);
}
Future updateData(context) async {
var db = new DatabaseHelper();
var user = new User(firstNameEditController.text, lastNameEditController.text, dateOfBirthEditController.text);
user.setUserId(id);
bool dataCheck=await db.update(user);
if(dataCheck==true){
print("Data edit successfully");
var dataList = await db.getUser();
Navigator.pushReplacement(context,
MaterialPageRoute(builder: (context) => UserListPage(dataList)));
}
}
}
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