fromColor static method

MaterialColor fromColor(
  1. Color color
)

Create a MaterialColor from a Color

Credit: https://medium.com/@filipvk/creating-a-custom-color-swatch-in-flutter-554bcdcb27f3

Implementation

static MaterialColor fromColor(Color color) {
  final strengths = [0.05];
  final swatch = <int, Color>{};
  final r = color.red, g = color.green, b = color.blue;

  for (var i = 1; i < 10; i++) {
    strengths.add(0.1 * i);
  }
  for (final strength in strengths) {
    final ds = 0.5 - strength;
    swatch[(strength * 1000).round()] = Color.fromRGBO(
      r + ((ds < 0 ? r : (255 - r)) * ds).round(),
      g + ((ds < 0 ? g : (255 - g)) * ds).round(),
      b + ((ds < 0 ? b : (255 - b)) * ds).round(),
      1,
    );
  }
  return MaterialColor(color.value, swatch);
}