Flutter: freezed custom operator == does not work as I accept

Question

I am using freezed and I have list of object, I override my freezer class like this:

  @override
  bool operator ==(Object other) =>
      other is _ServiceItemModel &&
      id == other.id &&
      product.id == other.product.id &&
      product.externalId == other.product.externalId &&
      internalId == other.internalId &&
      identical(other, this);

  @override
  int get hashCode => [id, product.id, product.externalId, internalId].hashCode;

my question is why the value of bool iseq = identical(servicesItem, oldService ); return false !

servicesItem and oldService are List of ServiceItemModel.

score 0 · Answer 1 · answered Feb 17 '23 at 09:33

0

you should remove this line

identical(other, this);

answered Feb 17 '23 at 09:33

Ares

2,504
19
19

Not possible, I am using Redux, If I remove `identical` redux state don't be refresh – Cyrus the Great Feb 17 '23 at 09:34
then what is your problem? `identical` can't return true for 2 variables. – Ares Feb 17 '23 at 09:36
My problem is exactly here , redux won't work without identical. If I remove it, my state doesn't change, I guess because Redux can understand the state is changed. – Cyrus the Great Feb 17 '23 at 09:45
seems your implementation is wrong, maybe better to write your main implementation here, so that we can help. – Ares Feb 17 '23 at 10:31
If I check each item separately the equality is ok but in the list it is not working – Cyrus the Great Feb 17 '23 at 10:38

Flutter: freezed custom operator == does not work as I accept

1 Answers1