decodeIcon static method

Icon? decodeIcon(dynamic value, { bool validate = true, })

Decodes the given value into an IconData. If the value is null then null will be returned.

{
  "color": "<Color>",
  "fill": "<double>",
  "grade": "<double>",
  "icon": "<IconData>",
  "opticalSize": "<double>",
  "semanticLabel": "<String>",
  "shadows": "<List<Shadow>>",
  "size": "<double>",
  "textDirection": "<TextDirection>",
  "weight": "<double>"
}

See also:

• decodeColor
• decodeIconData
• decodeShadow
• decodeTextDirection

Implementation

static Icon? decodeIcon(
  dynamic value, {
  bool validate = true,
}) {
  Icon? result;

  if (value is Icon) {
    result = value;
  } else if (value != null) {
    assert(SchemaValidator.validate(
      schemaId: '$_baseSchemaUrl/icon',
      value: value,
      validate: validate,
    ));
    result = Icon(
      decodeIconData(value['icon'], validate: false)!,
      color: ThemeDecoder.decodeColor(
        value['color'],
        validate: false,
      ),
      fill: JsonClass.maybeParseDouble(value['fill']),
      grade: JsonClass.maybeParseDouble(value['grade']),
      opticalSize: JsonClass.maybeParseDouble(value['opticalSize']),
      semanticLabel: value['semanticLabel'],
      shadows: JsonClass.maybeFromDynamicList(
        value['shadows'],
        (map) => ThemeDecoder.decodeShadow(
          map,
          validate: false,
        )!,
      ),
      size: JsonClass.maybeParseDouble(value['size']),
      textDirection: ThemeDecoder.decodeTextDirection(
        value['textDirection'],
        validate: false,
      ),
      weight: JsonClass.maybeParseDouble(value['weight']),
    );
  }

  return result;
}