ColorConverter class

A JSON converter for Flutter's Color class.

This converter serializes Color objects to JSON as a 32-bit ARGB integer, and deserializes integers back to Color objects. The integer representation includes alpha, red, green, and blue channels in ARGB format.

Example JSON representation:

4294901760  // 0xFFFF0000 - Red color

Usage with json_serializable:

@JsonSerializable()
class MyClass {
  @ColorConverter()
  final Color backgroundColor;

  MyClass(this.backgroundColor);
}

Note: The integer format preserves the full ARGB color information including opacity, making it suitable for complete color serialization.

See also:

  • Color, the Flutter class representing colors
  • Color.toARGB32, the method used for serialization

Constructors

ColorConverter()
Creates a const instance of ColorConverter.
const

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

fromJson(int json) → Color
Converts a 32-bit ARGB integer to a Color object.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toJson(Color color) → int
Converts a Color object to a 32-bit ARGB integer.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited