responsive_table

Description:

responsive table

responsive_table #
Responsive Data table is a highly flexible tool built upon the foundations of progressive enhancement, that adds all of these advanced features to any flutter table.
Example #




import 'dart:math';
import 'package:flutter/material.dart';
import 'package:responsive_table/responsive_table.dart';

void main() {
WidgetsFlutterBinding.ensureInitialized();
runApp(MyApp());
}

class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
visualDensity: VisualDensity.adaptivePlatformDensity,
),
initialRoute: '/',
routes: {
'/': (_) => DataPage(),
},
);
}
}

class DataPage extends StatefulWidget {
DataPage({Key? key}) : super(key: key);
@override
_DataPageState createState() => _DataPageState();
}

class _DataPageState extends State<DataPage> {
late List<DatatableHeader> _headers;

List<int> _perPages = [10, 20, 50, 100];
int _total = 100;
int? _currentPerPage = 10;
List<bool>? _expanded;
String? _searchKey = "id";

int _currentPage = 1;
bool _isSearch = false;
List<Map<String, dynamic>> _sourceOriginal = [];
List<Map<String, dynamic>> _sourceFiltered = [];
List<Map<String, dynamic>> _source = [];
List<Map<String, dynamic>> _selecteds = [];
// ignore: unused_field
String _selectableKey = "id";

String? _sortColumn;
bool _sortAscending = true;
bool _isLoading = true;
bool _showSelect = true;
var random = new Random();

List<Map<String, dynamic>> _generateData({int n: 100}) {
final List source = List.filled(n, Random.secure());
List<Map<String, dynamic>> temps = [];
var i = 1;
print(i);
// ignore: unused_local_variable
for (var data in source) {
temps.add({
"id": i,
"sku": "$i\000$i",
"name": "Product $i",
"category": "Category-$i",
"price": i * 10.00,
"cost": "20.00",
"margin": "${i}0.20",
"in_stock": "${i}0",
"alert": "5",
"received": [i + 20, 150]
});
i++;
}
return temps;
}

_initializeData() async {
_mockPullData();
}

_mockPullData() async {
_expanded = List.generate(_currentPerPage!, (index) => false);

setState(() => _isLoading = true);
Future.delayed(Duration(seconds: 3)).then((value) {
_sourceOriginal.clear();
_sourceOriginal.addAll(_generateData(n: random.nextInt(10000)));
_sourceFiltered = _sourceOriginal;
_total = _sourceFiltered.length;
_source = _sourceFiltered.getRange(0, _currentPerPage!).toList();
setState(() => _isLoading = false);
});
}

_resetData({start: 0}) async {
setState(() => _isLoading = true);
var _expandedLen =
_total - start < _currentPerPage! ? _total - start : _currentPerPage;
Future.delayed(Duration(seconds: 0)).then((value) {
_expanded = List.generate(_expandedLen as int, (index) => false);
_source.clear();
_source = _sourceFiltered.getRange(start, start + _expandedLen).toList();
setState(() => _isLoading = false);
});
}

_filterData(value) {
setState(() => _isLoading = true);

try {
if (value == "" || value == null) {
_sourceFiltered = _sourceOriginal;
} else {
_sourceFiltered = _sourceOriginal
.where((data) => data[_searchKey!]
.toString()
.toLowerCase()
.contains(value.toString().toLowerCase()))
.toList();
}

_total = _sourceFiltered.length;
var _rangeTop = _total < _currentPerPage! ? _total : _currentPerPage!;
_expanded = List.generate(_rangeTop, (index) => false);
_source = _sourceFiltered.getRange(0, _rangeTop).toList();
} catch (e) {
print(e);
}
setState(() => _isLoading = false);
}

@override
void initState() {
super.initState();

/// set headers
_headers = [
DatatableHeader(
text: "ID",
value: "id",
show: true,
sortable: true,
textAlign: TextAlign.center),
DatatableHeader(
text: "Name",
value: "name",
show: true,
flex: 2,
sortable: true,
editable: true,
textAlign: TextAlign.left),
DatatableHeader(
text: "SKU",
value: "sku",
show: true,
sortable: true,
textAlign: TextAlign.center),
DatatableHeader(
text: "Category",
value: "category",
show: true,
sortable: true,
textAlign: TextAlign.left),
DatatableHeader(
text: "Price",
value: "price",
show: true,
sortable: true,
textAlign: TextAlign.left),
DatatableHeader(
text: "Margin",
value: "margin",
show: true,
sortable: true,
textAlign: TextAlign.left),
DatatableHeader(
text: "In Stock",
value: "in_stock",
show: true,
sortable: true,
textAlign: TextAlign.left),
DatatableHeader(
text: "Alert",
value: "alert",
show: true,
sortable: true,
textAlign: TextAlign.left),
DatatableHeader(
text: "Received",
value: "received",
show: true,
sortable: false,
sourceBuilder: (value, row) {
List list = List.from(value);
return Container(
child: Column(
children: [
Container(
width: 85,
child: LinearProgressIndicator(
value: list.first / list.last,
),
),
Text("${list.first} of ${list.last}")
],
),
);
},
textAlign: TextAlign.center),
];

_initializeData();
}

@override
void dispose() {
super.dispose();
}

@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("RESPONSIVE DATA TABLE"),
),
drawer: Drawer(
child: ListView(
children: [
ListTile(
leading: Icon(Icons.home),
title: Text("home"),
onTap: () {},
),
ListTile(
leading: Icon(Icons.storage),
title: Text("data"),
onTap: () {},
)
],
),
),
body: SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
mainAxisSize: MainAxisSize.max,
children: [
Container(
margin: EdgeInsets.all(10),
padding: EdgeInsets.all(0),
constraints: BoxConstraints(
maxHeight: 700,
),
child: Card(
elevation: 1,
shadowColor: Colors.black,
clipBehavior: Clip.none,
child: ResponsiveDatatable(
title: TextButton.icon(
onPressed: () => {},
icon: Icon(Icons.add),
label: Text("new item"),
),
reponseScreenSizes: [ScreenSize.xs],
actions: [
if (_isSearch)
Expanded(
child: TextField(
decoration: InputDecoration(
hintText: 'Enter search term based on ' +
_searchKey!
.replaceAll(new RegExp('[\\W_]+'), ' ')
.toUpperCase(),
prefixIcon: IconButton(
icon: Icon(Icons.cancel),
onPressed: () {
setState(() {
_isSearch = false;
});
_initializeData();
}),
suffixIcon: IconButton(
icon: Icon(Icons.search), onPressed: () {})),
onSubmitted: (value) {
_filterData(value);
},
)),
if (!_isSearch)
IconButton(
icon: Icon(Icons.search),
onPressed: () {
setState(() {
_isSearch = true;
});
})
],
headers: _headers,
source: _source,
selecteds: _selecteds,
showSelect: _showSelect,
autoHeight: false,
dropContainer: (data) {
if (int.tryParse(data['id'].toString())!.isEven) {
return Text("is Even");
}
return _DropDownContainer(data: data);
},
onChangedRow: (value, header) {
/// print(value);
/// print(header);
},
onSubmittedRow: (value, header) {
/// print(value);
/// print(header);
},
onTabRow: (data) {
print(data);
},
onSort: (value) {
setState(() => _isLoading = true);

setState(() {
_sortColumn = value;
_sortAscending = !_sortAscending;
if (_sortAscending) {
_sourceFiltered.sort((a, b) =>
b["$_sortColumn"].compareTo(a["$_sortColumn"]));
} else {
_sourceFiltered.sort((a, b) =>
a["$_sortColumn"].compareTo(b["$_sortColumn"]));
}
var _rangeTop = _currentPerPage! < _sourceFiltered.length
? _currentPerPage!
: _sourceFiltered.length;
_source = _sourceFiltered.getRange(0, _rangeTop).toList();
_searchKey = value;

_isLoading = false;
});
},
expanded: _expanded,
sortAscending: _sortAscending,
sortColumn: _sortColumn,
isLoading: _isLoading,
onSelect: (value, item) {
print("$value $item ");
if (value!) {
setState(() => _selecteds.add(item));
} else {
setState(
() => _selecteds.removeAt(_selecteds.indexOf(item)));
}
},
onSelectAll: (value) {
if (value!) {
setState(() => _selecteds =
_source.map((entry) => entry).toList().cast());
} else {
setState(() => _selecteds.clear());
}
},
footers: [
Container(
padding: EdgeInsets.symmetric(horizontal: 15),
child: Text("Rows per page:"),
),
if (_perPages.isNotEmpty)
Container(
padding: EdgeInsets.symmetric(horizontal: 15),
child: DropdownButton<int>(
value: _currentPerPage,
items: _perPages
.map((e) => DropdownMenuItem<int>(
child: Text("$e"),
value: e,
))
.toList(),
onChanged: (dynamic value) {
setState(() {
_currentPerPage = value;
_currentPage = 1;
_resetData();
});
},
isExpanded: false,
),
),
Container(
padding: EdgeInsets.symmetric(horizontal: 15),
child:
Text("$_currentPage - $_currentPerPage of $_total"),
),
IconButton(
icon: Icon(
Icons.arrow_back_ios,
size: 16,
),
onPressed: _currentPage == 1
? null
: () {
var _nextSet = _currentPage - _currentPerPage!;
setState(() {
_currentPage = _nextSet > 1 ? _nextSet : 1;
_resetData(start: _currentPage - 1);
});
},
padding: EdgeInsets.symmetric(horizontal: 15),
),
IconButton(
icon: Icon(Icons.arrow_forward_ios, size: 16),
onPressed: _currentPage + _currentPerPage! - 1 > _total
? null
: () {
var _nextSet = _currentPage + _currentPerPage!;

setState(() {
_currentPage = _nextSet < _total
? _nextSet
: _total - _currentPerPage!;
_resetData(start: _nextSet - 1);
});
},
padding: EdgeInsets.symmetric(horizontal: 15),
)
],
),
),
),
])),
floatingActionButton: FloatingActionButton(
onPressed: _initializeData,
child: Icon(Icons.refresh_sharp),
),
);
}
}

class _DropDownContainer extends StatelessWidget {
final Map<String, dynamic> data;
const _DropDownContainer({Key? key, required this.data}) : super(key: key);

@override
Widget build(BuildContext context) {
List<Widget> _children = data.entries.map<Widget>((entry) {
Widget w = Row(
children: [
Text(entry.key.toString()),
Spacer(),
Text(entry.value.toString()),
],
);
return w;
}).toList();

return Container(
/// height: 100,
child: Column(
/// children: [
/// Expanded(
/// child: Container(
/// color: Colors.red,
/// height: 50,
/// )),

/// ],
children: _children,
),
);
}
}

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Methods #
onSelect( bool selected, dynamic key);
onSelectAll( bool selected );
onTabRow( dynamic row );
onSort( dynamic value );
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Properties #
title: Widget
headers: List<DatatableHeader>
actions: List<Widget>
source: List<Map<String, dynamic>>
selecteds: List<Map<String, dynamic>>
showSelect: bool
footers: List<Widget>
sortColumn: String
sortAscending: bool
isLoading: bool,
autoHeight: bool,
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