Flutter 数据表列宽问题
我正试图在Flutter 数据表列宽问题,flutter,datatable,width,flutter-desktop,Flutter,Datatable,Width,Flutter Desktop,我正试图在flatter中构建一个全宽DataTable,左侧有一个固定宽度的列,其他两个列应将剩余的列除以 但是,即使左侧标题文本被截断,中间和右侧列也不会采用剩余的宽度,如下所示: 如果文本太宽,无法在一行中显示,但wrap无法按预期工作,我还希望将其包装到单元格中 我如何解决我的问题 代码如下: import 'package:flutter/material.dart'; void main() { runApp(MyApp()); } class MyApp extends
flatter
中构建一个全宽DataTable
,左侧有一个固定宽度的列,其他两个列应将剩余的列除以
但是,即使左侧标题文本被截断,中间和右侧列也不会采用剩余的宽度,如下所示:
如果文本太宽,无法在一行中显示,但wrap
无法按预期工作,我还希望将其包装到单元格中
我如何解决我的问题
代码如下:
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: Scaffold(
body: Column(children: [
Expanded(
child: Container(
constraints: BoxConstraints.expand(width: double.infinity),
child: SingleChildScrollView(
child: DataTable(
headingRowHeight: 32,
dataRowHeight: 24,
columns: [
DataColumn(
label: ConstrainedBox(
constraints: BoxConstraints(
maxWidth: 20,
minWidth: 20,
),
child: Text('Short column'),
),
),
DataColumn(label: Text('Long column')),
DataColumn(label: Text('Long column')),
],
rows: [
DataRow(
cells: [
DataCell(
ConstrainedBox(
constraints: BoxConstraints(
maxWidth: 20,
minWidth: 20,
),
child: Text('1'),
),
),
DataCell(
Wrap(
children: [
Text(
"""Some long content i would like to be wrapped when column width is not
enought to fully display it"""),
],
),
),
DataCell(Text('Some more text')),
],
),
DataRow(
cells: [
DataCell(Container(
color: Colors.pink,
child: ConstrainedBox(
constraints: BoxConstraints(
maxWidth: 20,
minWidth: 20,
),
child: Text('2'),
),
)),
DataCell(
Wrap(
children: [
Container(
color: Colors.yellow,
child: Text(
"""Some long content i would like to be wrapped when column width is not
enought to fully display it""")),
],
),
),
DataCell(Text('Some more text')),
],
)
]),
),
),
),
]),
),
);
}
}
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: Scaffold(
body: Column(children: [
Expanded(
child: Container(
child: SingleChildScrollView(
child: Table(
border: TableBorder.all(width: 1),
columnWidths: {
0: FixedColumnWidth(20),
},
defaultColumnWidth: FlexColumnWidth(),
children: [
TableRow(children: [
Text('Short column'),
Text('Long column'),
Text('Long column')
]),
TableRow(
children: [
Text('1'),
Text(
'Some long content i would like to be wrapped when column width is not enought to fully display it'),
Container(
child: Text('Some more text'),
)
],
)
],
),
),
),
),
]),
),
);
}
}
编辑
感谢@ Auiik的答案,但在你的例子中,表没有完全的设备宽度,它仍然在中间,有一个大屏幕,这不是我想要的。
此外,行高度是恒定的,如果内容需要更高的高度,它不会增加
有什么可以做的吗?数据表有一些默认值:
DataTable({
Key key,
@required this.columns,
this.sortColumnIndex,
this.sortAscending = true,
this.onSelectAll,
this.dataRowHeight = kMinInteractiveDimension,
this.headingRowHeight = 56.0,
this.horizontalMargin = 24.0,
this.columnSpacing = 56.0,
下面是删除了一些小部件的固定示例
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: Scaffold(
body: SafeArea(
child: DataTable(
horizontalMargin: 6.0,
columnSpacing: 6.0,
headingRowHeight: 32.0,
dataRowHeight: 100.0,
columns: [
DataColumn(
label: ConstrainedBox(
constraints: BoxConstraints(
maxWidth: 20,
minWidth: 20,
),
child: Text('Short column'),
),
),
DataColumn(label: Text('Long column')),
DataColumn(label: Text('Three')),
],
rows: [
DataRow(
cells: [
DataCell(
Text('1'),
),
DataCell(
Container(
child: Text(
'Some long content i would like to be wrapped ',
),
),
),
DataCell(Text('Some more text')),
],
),
DataRow(
cells: [
DataCell(Container(
color: Colors.pink,
child: Text('2'),
)),
DataCell(
Container(
height: 500,
color: Colors.yellow,
child: Text(
'Some long content i would like to be wrapped when column width is not enought to fully display itSome long content i would like to be wrapped when column width is not display it Some long content i would like to be wrapped when column width is not enought to fully display itSome long content i would like to be wrapped when column width is not display it Some long content i would like to be wrapped when column width is not enought to fully display itSome long content i would like to be wrapped when column width is not display it 555',
),
),
placeholder: false),
DataCell(Text('Some more text')),
],
),
],
),
),
),
);
}
}
编辑
DataTable
我发现一个普通的
表格
允许我做我想做的事情:我可以对某一列使用FixedColumnWidth
,对其他列使用FlexColumnWidth
,以占用剩余的空间
此外,文本被正确包装,行高增加以适应内容,如下图中的小屏幕宽度和大屏幕宽度:
这是代码:
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: Scaffold(
body: Column(children: [
Expanded(
child: Container(
constraints: BoxConstraints.expand(width: double.infinity),
child: SingleChildScrollView(
child: DataTable(
headingRowHeight: 32,
dataRowHeight: 24,
columns: [
DataColumn(
label: ConstrainedBox(
constraints: BoxConstraints(
maxWidth: 20,
minWidth: 20,
),
child: Text('Short column'),
),
),
DataColumn(label: Text('Long column')),
DataColumn(label: Text('Long column')),
],
rows: [
DataRow(
cells: [
DataCell(
ConstrainedBox(
constraints: BoxConstraints(
maxWidth: 20,
minWidth: 20,
),
child: Text('1'),
),
),
DataCell(
Wrap(
children: [
Text(
"""Some long content i would like to be wrapped when column width is not
enought to fully display it"""),
],
),
),
DataCell(Text('Some more text')),
],
),
DataRow(
cells: [
DataCell(Container(
color: Colors.pink,
child: ConstrainedBox(
constraints: BoxConstraints(
maxWidth: 20,
minWidth: 20,
),
child: Text('2'),
),
)),
DataCell(
Wrap(
children: [
Container(
color: Colors.yellow,
child: Text(
"""Some long content i would like to be wrapped when column width is not
enought to fully display it""")),
],
),
),
DataCell(Text('Some more text')),
],
)
]),
),
),
),
]),
),
);
}
}
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: Scaffold(
body: Column(children: [
Expanded(
child: Container(
child: SingleChildScrollView(
child: Table(
border: TableBorder.all(width: 1),
columnWidths: {
0: FixedColumnWidth(20),
},
defaultColumnWidth: FlexColumnWidth(),
children: [
TableRow(children: [
Text('Short column'),
Text('Long column'),
Text('Long column')
]),
TableRow(
children: [
Text('1'),
Text(
'Some long content i would like to be wrapped when column width is not enought to fully display it'),
Container(
child: Text('Some more text'),
)
],
)
],
),
),
),
),
]),
),
);
}
}
谢谢@awaik的回答,但这并不能解决我的问题。请检查我的编辑。我尝试了更新的代码,但仍然没有达到全宽。无论如何,正如你所说,我发现
DataTable
可能不是满足我需要的最佳小部件