【Flutter&Dart】 listView.builder例子二（14 /100）

上效果图

上代码：

import 'package:flutter/material.dart';

class ListRoles extends StatelessWidget {
  ListRoles({super.key});
  final List<String> entries = <String>['+', '-', '*', '/'];
  final List<int> colorCodes = <int>[600, 500, 100, 50];

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
        padding: const EdgeInsets.all(8),
        itemCount: entries.length,
        itemBuilder: (BuildContext context, int index) {
          return Container(
            height: 50,
            color: Colors.amber[colorCodes[index]],
            child: Center(
              child: Text('Entry ${entries[index]}'),
            ),
          );
        });
  }
}

还是官网例子蛤！！！

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