void update(VoidCallback fn) {
  final schedulerPhase = SchedulerBinding.instance.schedulerPhase;
  if (schedulerPhase == SchedulerPhase.persistentCallbacks) {
    SchedulerBinding.instance.addPostFrameCallback((_) {
      setState(fn);
    });
  } else {
    setState(fn);
  }
}

版权所有

许可证：署名 4.0 国际 (CC-BY-4.0)