fromJson method

@override EdgeInsetsGeometry? fromJson(Map<String, dynamic>? json)

Implementation

@override
EdgeInsetsGeometry? fromJson(Map<String, dynamic>? json) {
  if (json == null) return null;

  if (json is String || json is double || json is int) {
    return EdgeInsets.all((json as num).toDouble());
  } else if (json is List) {
    if (json.length == 2) {
      return EdgeInsets.symmetric(
        horizontal: ((json[0] ?? 0) as num).toDouble(),
        vertical: ((json[1] ?? 0) as num).toDouble(),
      );
    } else if (json.length == 4) {
      return EdgeInsets.fromLTRB(
        (json[0] as num).toDouble(),
        (json[1] as num).toDouble(),
        (json[2] as num).toDouble(),
        (json[3] as num).toDouble(),
      );
    }
  } else {
    return EdgeInsets.only(
      bottom: ((json['bottom'] ?? 0.0) as num).toDouble(),
      left: ((json['left'] ?? 0.0) as num).toDouble(),
      right: ((json['right'] ?? 0.0) as num).toDouble(),
      top: ((json['top'] ?? 0.0) as num).toDouble(),
    );
  }

  throw 'Unsuported_Json_Value';
}