颤振项目中的主色板错误

Question

当我选择颜色时有一条红线，我认为他无法识别所选的颜色

Answer 1

primarySwatch 需要一个 MaterialColor。

ThemeData

见Turn any color to Material Color for flutter

Map<int, Color> color = {
  50:Color.fromRGBO(136,14,79, .1),
  100:Color.fromRGBO(136,14,79, .2),
  200:Color.fromRGBO(136,14,79, .3),
  300:Color.fromRGBO(136,14,79, .4),
  400:Color.fromRGBO(136,14,79, .5),
  500:Color.fromRGBO(136,14,79, .6),
  600:Color.fromRGBO(136,14,79, .7),
  700:Color.fromRGBO(136,14,79, .8),
  800:Color.fromRGBO(136,14,79, .9),
  900:Color.fromRGBO(136,14,79, 1),
};


MaterialColor colorCustom = MaterialColor(0xFF880E4F, color);

和

theme: ThemeData(
  primarySwatch: colorCustom,
  bottomAppBarColor: colorCustom
),