Flutter FutureBuilder:如何将数据显示为文本

Future<String> fetchData() async {
  // 从服务器获取数据的逻辑
  // 返回一个字符串
}

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return FutureBuilder<String>(
      future: fetchData(),
      builder: (BuildContext context, AsyncSnapshot<String> snapshot) {
        if (snapshot.connectionState == ConnectionState.waiting) {
          // 当Future未完成时显示加载指示器
          return CircularProgressIndicator();
        } else if (snapshot.hasError) {
          // 当Future发生错误时显示错误信息
          return Text('Error: ${snapshot.error}');
        } else {
          // 当Future完成时将数据显示为文本
          return Text('Data: ${snapshot.data}');
        }
      },
    );
  }
}