flutter从类调用textstyle的阴影小部件

Question

我是flutter的新手，我想让代码尽可能少，所以我想调用它，但我不知道如何将shadow widget设置为固定变量

    class ShadowTextStyle extends TextStyle {
      final Color color;
      final FontWeight fontWeight;
      final double size;
      final List<Shadow>? shadows;
      const ShadowTextStyle({
        required this.color,
        required this.fontWeight,
        this.size = 14,
        this.shadows =//how to do it here,
        ,
    
      }): super(
            color: color,
            fontWeight: fontWeight,
            fontSize: size,
            shadows: shadows,
          );
    }

这是阴影参数，我想修复它

      shadows: <Shadow>[
        Shadow(
          offset: Offset(1.0, 0.0),
          blurRadius: 5.0,
          color: Color.fromARGB(255, 0, 0, 0),
        ),
      ],

Answer 1

我不确定我的问题是否正确，但你可以将你的自定义阴影分配给一个变量，我总是有一个style.dart文件来保存我的自定义样式。

Shadow myShadow = Shadow(
  offset: Offset(1.0, 0.0),
  blurRadius: 5.0,
  color: Color.fromARGB(255, 0, 0, 0),
);

Answer 2

我找到了。这就是我的意思：

const ShadowFile = <Shadow>[
  Shadow(
    offset: Offset(1.0, 0.0),
    blurRadius: 5.0,
    color: Color.fromARGB(255, 0, 0, 0),
  )
];

class ShadowTextStyle extends TextStyle {
  final Color color;
  final FontWeight fontWeight;
  final double size;
  const ShadowTextStyle({
    required this.color,
    required this.fontWeight,
    this.size = 14,
    shadows: ShadowFile,
  }) : super(
          color: color,
          fontWeight: fontWeight,
          fontSize: size,
         shadows: ShadowFile,
        );
}