We will see how to created a paginated table in Flutter using DataTableSource and PaginatedDataTable
import 'dart:math';
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
// This is the theme of your application.
//
// Try running your application with "flutter run". You'll see the
// application has a blue toolbar. Then, without quitting the app, try
// changing the primarySwatch below to Colors.green and then invoke
// "hot reload" (press "r" in the console where you ran "flutter run",
// or simply save your changes to "hot reload" in a Flutter IDE).
// Notice that the counter didn't reset back to zero; the application
// is not restarted.
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key, required this.title}) : super(key: key);
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final DataTableSource _data = MyData();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Column(
children: [
PaginatedDataTable(
source: _data,
columns: const [
DataColumn(label: Text('ID')),
DataColumn(label: Text('Name')),
DataColumn(label: Text('Price'))
],
header: const Center(child: Text('My Products')),
columnSpacing: 100,
horizontalMargin: 60,
rowsPerPage: 8,
)
],
),
);
}
}
class MyData extends DataTableSource{
final List<Map<String, dynamic>> _data = List.generate(
200,
(index) => {
"id": index,
"title": "Item $index",
"price": Random().nextInt(10000)
});
@override
DataRow? getRow(int index) {
return DataRow(cells: [
DataCell(Text(_data[index]['id'].toString())),
DataCell(Text(_data[index]["title"])),
DataCell(Text(_data[index]["price"].toString())),
]);
}
@override
// TODO: implement isRowCountApproximate
bool get isRowCountApproximate => false;
@override
// TODO: implement rowCount
int get rowCount => _data.length;
@override
// TODO: implement selectedRowCount
int get selectedRowCount => 0;
}