parseColor static method

Color? parseColor(dynamic value)

Implementation

static Color? parseColor(dynamic value) {
  if (value == null) return null;
  if (value is Color) return value;
  if (value is int) return Color(value);

  if (value is String) {
    String hex = value.trim();
    if (hex.startsWith('#')) {
      hex = hex.substring(1);
      if (hex.length == 6) {
        hex = 'FF$hex';
      } else if (hex.length == 3) {
        hex = 'FF${hex[0]}${hex[0]}${hex[1]}${hex[1]}${hex[2]}${hex[2]}';
      }
      final intVal = int.tryParse(hex, radix: 16);
      if (intVal != null) return Color(intVal);
    } else if (hex.startsWith('rgba(') || hex.startsWith('rgb(')) {
      final match = RegExp(r'\d+').allMatches(hex).toList();
      if (match.length >= 3) {
        final r = int.parse(match[0].group(0)!);
        final g = int.parse(match[1].group(0)!);
        final b = int.parse(match[2].group(0)!);
        double a = 1.0;
        if (match.length >= 4) {
          a = double.tryParse(match[3].group(0)!) ?? 1.0;
        }
        return Color.fromRGBO(r, g, b, a);
      }
    }
  }
  return null;
}