firebase - 如何在 Flutter 中正确调用 FirebaseFirestore.instance.clearPersistence()？

Question

我和这个人面临同样的问题 question
但他接受的答案对我没有帮助。
问题:
当一个用户退出时，另一个不同的用户登录时，由于 firebase 缓存系统，我的应用程序上显示的所有数据都来自前一个退出用户。我搜索了这个问题并找到了一个解决方案，它包括调用这个方法:

FirebaseFirestore.instance.clearPersistence();

但是无论何时何地，我放置这行代码时，都会抛出一个异常，说在客户端运行时我无法调用此方法:

Exception has occurred.PlatformException (PlatformException(failed-precondition, Operation was rejected because the system is not in a state required for the operation's execution. If performing a query, ensure it has been indexed via the Firebase console., {code: failed-precondition, message: Operation was rejected because the system is not in a state required for the operation's execution. If performing a query, ensure it has been indexed via the Firebase console., nativeErrorMessage: Persistence cannot be cleared while the client is running., nativeErrorCode: 9}))

那么，如何调用这个方法呢？或者更好，有没有最好的方法来解决这个问题？

Answer 1

看来有必要终止FirebaseFirestore.instance第一的。
在我的注销方法结束时，我调用:

await FirebaseFirestore.instance.terminate();
await FirebaseFirestore.instance.clearPersistence();

我没有收到任何错误，一切似乎都在正常工作。