Flutter ExpansionTile 箭头在左边而不是右边？

Question

有没有办法让 Flutter ExpansionTile 小部件上的旋转展开箭头作为前导而不是尾随？

Answer 1

const ExpansionTile(
          title: Text('ExpansionTile 3'),
          subtitle: Text('Leading expansion arrow icon'),
          controlAffinity: ListTileControlAffinity.leading,
          children: <Widget>[
            ListTile(title: Text('This is tile number 3')),
          ],
        ),

controlAffinity 属性可帮助您将其置于领先位置，将其置于标题之前

来源:https://api.flutter.dev/flutter/material/ExpansionTile-class.html