app-zj/lib/model/num_converter.dart

import 'package:json_annotation/json_annotation.dart';

/// Json解析num类型
class NumConverter extends JsonConverter<num?, dynamic> {
  const NumConverter();

  @override
  num? fromJson(json) {
    if (json == null) return null;
    if (json is num) return json;
    // String
    if (json is String) {
      try {
        return num.parse(json);
      } catch (e) {
        return null;
      }
    }
    // boolean false=0 true=1
    if (json is bool) {
      return json ? 1 : 0;
    }
    return null;
  }

  @override
  toJson(num? object) => object?.toString();
}