forked from lxm_flutter/FlutterUnit
152 lines
3.9 KiB
Dart
152 lines
3.9 KiB
Dart
import 'package:flutter/material.dart';
|
|
|
|
/// create by 张风捷特烈 on 2020-03-21
|
|
/// contact me by email 1981462002@qq.com
|
|
/// 说明:
|
|
// {
|
|
// "widgetId": 102,
|
|
// "name": 'DataTable基本使用',
|
|
// "priority": 1,
|
|
// "subtitle":
|
|
// "【columns】 : 列 【List<DataColumn>】\n"
|
|
// "【rows】 : 行 【List<DataRow>】",
|
|
// }
|
|
class _Bean {
|
|
final int id;
|
|
final String name;
|
|
final String type;
|
|
|
|
_Bean(this.id, this.name, this.type);
|
|
}
|
|
|
|
class CustomDataTable extends StatelessWidget {
|
|
final data = [
|
|
_Bean(101, 'DataTable', 'StatelessWidget'),
|
|
_Bean(44, 'RangeSlider', 'StatefulWidget'),
|
|
_Bean(2, 'Text', 'StatelessWidget'),
|
|
_Bean(1, 'Image', 'StatefulWidget'),
|
|
];
|
|
|
|
final columns = ['id', '名称', '类型'];
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return DataTable(
|
|
columns: columns.map((e) => DataColumn(label: Text(e))).toList(),
|
|
rows: data
|
|
.map((e) => DataRow(cells: [
|
|
DataCell(Text('${e.id}')),
|
|
DataCell(Text('${e.name}')),
|
|
DataCell(Text('${e.type}')),
|
|
]))
|
|
.toList());
|
|
}
|
|
}
|
|
|
|
// {
|
|
// "widgetId": 102,
|
|
// "name": 'DataTable的sort',
|
|
// "priority": 2,
|
|
// "subtitle":
|
|
// "【sortColumnIndex】 : 列号 【int】\n"
|
|
// "【columnSpacing】 : 列间距 【double】\n"
|
|
// "【sortAscending】 : 是否顺序 【bool】",
|
|
// }
|
|
|
|
class _BeanOp {
|
|
final int id;
|
|
final String name;
|
|
final String type;
|
|
bool select;
|
|
|
|
_BeanOp(this.id, this.name, this.type, this.select);
|
|
|
|
@override
|
|
String toString() {
|
|
return '_BeanOp{id: $id, name: $name, type: $type, select: $select}';
|
|
}
|
|
}
|
|
|
|
class SortDataTable extends StatefulWidget {
|
|
@override
|
|
_SortDataTableState createState() => _SortDataTableState();
|
|
}
|
|
|
|
class _SortDataTableState extends State<SortDataTable> {
|
|
var data = [
|
|
_BeanOp(101, 'DataTable', 'StatelessWidget', false),
|
|
_BeanOp(44, 'RangeSlider', 'StatefulWidget', false),
|
|
_BeanOp(2, 'Text', 'StatelessWidget', false),
|
|
_BeanOp(1, 'Image', 'StatefulWidget', false),
|
|
];
|
|
|
|
bool _sortAscending = false;
|
|
var selectData = <_BeanOp>[];
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return DataTable(
|
|
columnSpacing: 20,
|
|
sortColumnIndex: 1,
|
|
sortAscending: _sortAscending,
|
|
columns: [
|
|
DataColumn(
|
|
label: Container(
|
|
child: Checkbox(
|
|
value: selectData.length == data.length,
|
|
onChanged: _onSelectAll,
|
|
),
|
|
),
|
|
),
|
|
DataColumn(label: Text('id'), numeric: false, onSort: _onSortId),
|
|
DataColumn(label: Text('名称')),
|
|
DataColumn(label: Text('类型')),
|
|
],
|
|
rows: data
|
|
.map((e) => DataRow(selected: false, cells: [
|
|
DataCell(Checkbox(
|
|
value: e.select,
|
|
onChanged: (v) => _onSelectOne(v, e),
|
|
)),
|
|
DataCell(Text('${e.id}')),
|
|
DataCell(Text('${e.name}'),
|
|
showEditIcon: true, onTap: () {}),
|
|
DataCell(Text('${e.type}')),
|
|
]))
|
|
.toList());
|
|
}
|
|
|
|
_onSortId(int index, bool ascending) {
|
|
setState(() {
|
|
_sortAscending = ascending;
|
|
data.sort(
|
|
(a, b) => ascending ? a.id.compareTo(b.id) : b.id.compareTo(a.id));
|
|
});
|
|
}
|
|
|
|
_onSelectOne(bool selected, _BeanOp e) {
|
|
setState(() {
|
|
if (selected) {
|
|
//选中
|
|
selectData.add(e);
|
|
} else {
|
|
selectData.remove(e);
|
|
}
|
|
e.select = selected;
|
|
print(selectData);
|
|
});
|
|
}
|
|
|
|
_onSelectAll(bool select) {
|
|
setState(() {
|
|
if (select) {
|
|
data.forEach((e) => e.select = true);
|
|
selectData = data.map((e) => e).toList();
|
|
} else {
|
|
data.forEach((e) => e.select = false);
|
|
selectData = [];
|
|
}
|
|
});
|
|
}
|
|
}
|