如何在 ListView 中使用列表,在 Flutter 中使用 ListTile

How can I use a list in ListView and ListTile in Flutter

我正在尝试通过迭代列表来创建 ListView,但出现此错误:

package:flutter/src/material/list_tile.dart': Failed assertion: line 1002 pos 12: 'color != null || context != null': is not true.

我该如何解决这个问题?这是我的代码:

ListView(
        children: ListTile.divideTiles(
            tiles: _people.map((item) => ListTile(
                  leading: CircleAvatar(
                    backgroundColor: Colors.amber,
                    child: Text(item['id'].toString()),
                  ),
                  title: Text(item['name']),
                  subtitle: Text(item['descrip']),
                  trailing: IconButton(
                    icon: Icon(Icons.delete),
                    onPressed: () {},
                  ),
                ))).toList()));

ListTile.divideTiles需要颜色参数:

ListTile.divideTiles中指定颜色即可。

正如上面的答案所指出的,你不能将两个参数都保留为 null

ListView(
      children: ListTile.divideTiles(
        color: Colors.red,
        context: context,
    tiles: _people.map(
      (item) => ListTile(
        leading: CircleAvatar(
          backgroundColor: Colors.amber,
          child: Text(item['id'].toString()),
        ),
        title: Text(item['name']),
        subtitle: Text(item['descrip']),
        trailing: IconButton(
          icon: Icon(Icons.delete),
          onPressed: () {},
        ),
      ),
    ),
  ).toList())

这必须有效