Using Data Table in Flutter class is a widget to display data in a table is expensive, because to lay out the table all the data must be measured twice, once to negotiate the dimensions to use for each column, and a Row is used to set the values of the columns.
You can find out more about the Flutter app development services page.
To implement the Data Table follow the steps mentioned below.
1.) Create a Scaffold.
2.) Use the Data Table widget.
1.) Create a Scaffold. :
Inside Scaffold widgets, it Implements the basic material design visual layout structure. First, initialize the main app as a stateless widget.
This class provides APIs for showing drawers and bottom sheets. We can add the background color inside the scaffold widget.
It also supports special Material Design components, such as Drawers, AppBars, and SnackBars.
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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( debugShowCheckedModeBanner: false, title: 'Selectable Widget Demo', theme: ThemeData( primarySwatch: Colors.blue, ), home: _DataTableDemo(), ); } } |
2.) Use the Data Table widget.
Data Table is suggested that you use a PaginatedDataTable which automatically splits the data into multiple pages.
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bool sort = true; List<int> sno = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]; List<String> itemList = [ 'Student', 'Employee', 'Tester', 'Developer', 'UI Designer', 'Manager', 'Software', 'Flutter', 'Data', 'C', 'Swift', 'C++', 'Python', 'Magento', 'CS-Cart' ]; onSort(int columnIndex, bool ascending) { if (columnIndex == 0) { if (ascending) { sno.sort((a, b) => a.compareTo(b)); itemList = itemList.reversed.toList(); } else { sno.sort((b, a) => a.compareTo(b)); itemList = itemList.reversed.toList(); } } } |
However, For this reason, if you have a lot of data (say, more than a dozen rows with a dozen columns, though the precise limits depend on the target device), it is suggested that you use a PaginatedDataTable which automatically splits the data into multiple pages.
The full code is mentioned below.
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import 'package:flutter/material.dart'; void main() { runApp(const MyApp()); } 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( debugShowCheckedModeBanner: false, title: 'Data Table Demo', theme: ThemeData( primarySwatch: Colors.blue, ), home: _DataTableDemo(), ); } } class _DataTableDemo extends StatelessWidget { bool sort = true; List<int> sno = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]; List<String> itemList = [ 'Student', 'Employee', 'Tester', 'Developer', 'UI Designer', 'Manager', 'Software', 'Flutter', 'Data', 'C', 'Swift', 'C++', 'Python', 'Magento', 'CS-Cart' ]; onSort(int columnIndex, bool ascending) { if (columnIndex == 0) { if (ascending) { sno.sort((a, b) => a.compareTo(b)); itemList = itemList.reversed.toList(); } else { sno.sort((b, a) => a.compareTo(b)); itemList = itemList.reversed.toList(); } } } @override Widget build(BuildContext context) { return Stack( children: [ Scaffold( backgroundColor: Colors.white, appBar: commonAppBar( Utils.getStringValue(context, "Data Table Demo"), context, isLeadingEnable: false, onPressed: () { Navigator.pop(context); }), body: SingleChildScrollView( scrollDirection: Axis.horizontal, child: SingleChildScrollView( scrollDirection: Axis.vertical, child: Padding( padding: const EdgeInsets.all(8.0), child: DataTable( sortColumnIndex: 0, sortAscending: sort, columns: [ DataColumn( label: const Text('No.'), numeric: true, onSort: (int columnIndex, bool ascending) { setState(() { sort = !sort; }); onSort(columnIndex, ascending); }), const DataColumn(label: Text('Data Table-1')), const DataColumn(label: Text('Data Table-2')), const DataColumn(label: Text('Data Table-3')), ], rows: [ DataRow( cells: [ DataCell(Text('${sno[0]}')), DataCell(Text(itemList[0])), DataCell(Text(itemList[0])), DataCell(Text(itemList[0])), ], ), DataRow( cells: [ DataCell(Text('${sno[1]}')), DataCell(Text(itemList[1])), DataCell(Text(itemList[1])), DataCell(Text(itemList[1])), ], ), DataRow( cells: [ DataCell(Text('${sno[2]}')), DataCell(Text(itemList[2])), DataCell(Text(itemList[2])), DataCell(Text(itemList[2])), ], ), DataRow( cells: [ DataCell(Text('${sno[3]}')), DataCell(Text(itemList[3])), DataCell(Text(itemList[3])), DataCell(Text('${itemList[3]}')), ], ), DataRow( cells: [ DataCell(Text('${sno[4]}')), DataCell(Text(itemList[4])), DataCell(Text(itemList[4])), DataCell(Text(itemList[4])), ], ), DataRow( cells: [ DataCell(Text('${sno[5]}')), DataCell(Text(itemList[5])), DataCell(Text(itemList[5])), DataCell(Text(itemList[5])), ], ), DataRow( cells: [ DataCell(Text('${sno[6]}')), DataCell(Text(itemList[6])), DataCell(Text(itemList[6])), DataCell(Text(itemList[6])), ], ), DataRow( cells: [ DataCell(Text('${sno[7]}')), DataCell(Text(itemList[7])), DataCell(Text(itemList[7])), DataCell(Text(itemList[7])), ], ), DataRow( cells: [ DataCell(Text('${sno[8]}')), DataCell(Text(itemList[8])), DataCell(Text(itemList[8])), DataCell(Text(itemList[8])), ], ), DataRow( cells: [ DataCell(Text('${sno[9]}')), DataCell(Text(itemList[9])), DataCell(Text(itemList[9])), DataCell(Text(itemList[9])), ], ), DataRow( cells: [ DataCell(Text('${sno[10]}')), DataCell(Text(itemList[10])), DataCell(Text(itemList[10])), DataCell(Text(itemList[10])), ], ), DataRow( cells: [ DataCell(Text('${sno[11]}')), DataCell(Text(itemList[11])), DataCell(Text(itemList[11])), DataCell(Text(itemList[11])), ], ), DataRow( cells: [ DataCell(Text('${sno[12]}')), DataCell(Text(itemList[12])), DataCell(Text(itemList[12])), DataCell(Text(itemList[12])), ], ), DataRow( cells: [ DataCell(Text('${sno[13]}')), DataCell(Text(itemList[13])), DataCell(Text(itemList[13])), DataCell(Text(itemList[13])), ], ), DataRow( cells: [ DataCell(Text('${sno[14]}')), DataCell(Text(itemList[14])), DataCell(Text(itemList[14])), DataCell(Text(itemList[14])), ], ), ], ), ), ), ) ), Visibility(visible: _loading, child: const Loader()) ], ); } } |
Data Table in Flutter
We can now run the app on how to create Data Table in a flutter.
Finally, we have implemented the flow of creating DataTable in a flutter.
Hope this blog helps you to create DataTable in a flutter.
So, I hope it will help you understand and get a brief idea about it.
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Thank you very much.