Example of using MobX Dart with Flutter's Counter example, plus some extras

counter_store.dart

import 'package:mobx/mobx.dart';

part 'counter_store.g.dart';

class CounterStore = _CounterStore with _$CounterStore;

abstract class _CounterStore with Store {

  @observable
  int counter1 = 0;

  @observable
  int counter2 = 0;

  @computed
  int get counterSum => counter1 + counter2;

  @action
  void increment1() {
    counter1++;
  }

  @action
  void increment2() {
    counter2++;
  }

  @action
  void reset() {
      counter1 = 0;
      counter2 = 0;
  }
}