dart - Flutter 必须初始化const变量 'IconData'

Question

我正在尝试在我们的项目中使用 Flutter Icons，在下载字体和 dart 类后我将它们放入项目中，但是对于 dart 类我得到了这个错误

The const variable 'IconData' must be initialized

MyFlutterApp 类:

class MyFlutterApp {
  MyFlutterApp._();

  static const _kFontFam = 'MyFlutterApp';

  static const IconData 3d_rotation = const IconData(0xe800, fontFamily: _kFontFam);
  static const IconData ac_unit = const IconData(0xe801, fontFamily: _kFontFam);
  static const IconData access_alarm = const IconData(0xe802, fontFamily: _kFontFam);
}

我该如何解决这个问题？

Answer 1

变量名不能以数字开头。将其更改为:

  static const IconData three_d_rotation = const IconData(0xe800, fontFamily: _kFontFam);