I have this sample code that I write on dartpad, you can run it too :
void main() {
Task a = Task(id: 1, title:'task 1', users: [User(id:0, name:'John')]);
Task b = Task(id: a.id, title: a.title, users: List<User>.from(a.users!));
resetTask(Task task) {
b.id = task.id;
b.title = task.title;
b.users = List<User>.from(a.users!);
}
print(b.title); // task 1
print('${b.users![0].name} \n'); // John
b.title = 'task 2';
b.users![0].name = 'Doe';
print(b.title); // task 2
print('${b.users![0].name} \n'); // Doe
resetTask(a);
print(b.title); // task 1
print('${b.users![0].name} \n'); // John
}
class Task {
Task({this.id, this.title, this.users});
int? id;
String? title;
List<User>? users;
}
class User {
User({this.id, this.name});
int? id;
String? name;
}
What you see on comment is what I'm expecting in output console :
task 1
John
task 2
Doe
task 1
John
And here is my result :
task 1
John
task 2
Doe
task 1
Doe
I don't understand why my user isn't refresh ?
It looks like both user list are linked
