Flutter：有什么方法可以更改DataTable的行线颜色吗？

Question

我在最近的应用程序中使用DataTable，我需要更改行线的颜色或使其不可见（我是说我不想让我的表显示任何行线）

如果有人知道，请帮助！谢谢

Answer 1

您可以使用Theme小部件并覆盖dividerColor

Screen.jpg

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _MyHomePageState();
  }
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Theme(
          data: Theme.of(context).copyWith(
              dividerColor: Colors.green
          ),
          child: DataTable(
              columns: [
                DataColumn(label: Text('Language')),
                DataColumn(label: Text('Year'))
              ],
              rows: [
                DataRow(
                  cells: [
                    DataCell(Text('Go')),
                    DataCell(Text('2009'))
                  ],
                ),
                DataRow(
                  cells: [
                    DataCell(Text('Dart')),
                    DataCell(Text('2018'))
                  ],
                ),
                DataRow(
                  cells: [
                    DataCell(Text('Java')),
                    DataCell(Text('1992'))
                  ],
                ),
              ]
          ),
        ),
      ),
    );
  }
}