将两个RadioListTile平铺与列的中心对齐

Column(
  mainAxisAlignment: MainAxisAlignment.center,
  children: [
    Row(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        Expanded(
          child: RadioListTile(
            title: Text('选项1'),
            value: 1,
            groupValue: selectedValue,
            onChanged: (value) {
              setState(() {
                selectedValue = value;
              });
            },
          ),
        ),
        Expanded(
          child: RadioListTile(
            title: Text('选项2'),
            value: 2,
            groupValue: selectedValue,
            onChanged: (value) {
              setState(() {
                selectedValue = value;
              });
            },
          ),
        ),
      ],
    ),
  ],
)