ListView中Row内的Text无法换行如何解决？

你的问题核心在于Row是无水平边界约束的容器，默认会让子组件无限延伸，导致Text没有宽度限制，自然不会换行。只需给Text添加宽度约束即可解决，最直接的方法是用Expanded包裹Text：

ListView.builder(
  itemCount: 1,
  itemBuilder: (ctx, i) => Row(
    children: const <Widget>[
      Expanded(
        child: Text("very very very very very very very very very very very very very very very very very very long text"),
      ),
    ],
  ),
);

原理说明： #

• Expanded会强制子组件填充Row内的可用水平空间（即ListView的宽度），给Text设定了明确的最大宽度。
• Text默认maxLines: null（自动换行）、softWrap: true（允许换行），当文本长度超过约束宽度时，就会自动折行显示。

如果需要限制最大行数，可以给Text添加maxLines属性，超出部分会自动省略：

Expanded(
  child: Text(
    "very very very very very very very very very very very very very very very very very very long text",
    maxLines: 3,
    overflow: TextOverflow.ellipsis, // 超出部分显示省略号
  ),
)

内容的提问来源于stack exchange，提问作者LucioleMaléfique