如何自动quot”取消流订阅？
我有一个具有streamsubscript的DART模型：
class CounterPageModel {
CounterPageModel() {
subscription = Services.resetCounter.listen(resetCounter);
}
late StreamSubscription<bool> subscription;
如果我了解StreamSubscription，则在处理streamDescription实例时，它不会调用cance。那是对的吗？如果是这样，是否有一种简单的方法来取消我的模型时？
我编写了一个简单的DISCOSE函数，当要处理模型时可以取消订阅时可以调用，但是感觉一定有一个更标准的方法？ （例如，为streamSubscription编写包装器，该包装量 cance> cance 当streamsubscription被处置时？但是我不知道那会是什么样。）
I have a dart model that has a StreamSubscription:
class CounterPageModel {
CounterPageModel() {
subscription = Services.resetCounter.listen(resetCounter);
}
late StreamSubscription<bool> subscription;
If I'm understanding StreamSubscription, it doesn't call cancel when the StreamDescription instance is disposed. Is that correct? If so, is there a simple way to cancel the subscription when my model is disposed?
I wrote a simple dispose function that I can call when the model is about to be disposed that would cancel the subscription, but it feels like there must be a more standard way? (E.g., write a wrapper for StreamSubscription that calls cancel when StreamSubscription is disposed? But I don't know what that would look like.)
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使用 flutter钩子
usestream，可以订阅流（就像您在in> initstate中一样），返回其当前值，并在当时自动取消订阅小部件生命周期已完成（就像您将dispose中放置一样）。雷米（Remi）的技术非常好...同一个人写了提供商和Riverpod。
Use Flutter Hooks
useStream, which can subscribe to a stream (like you would put ininitState), return its current value, and automatically cancels the subscription when the widget lifecycle is complete (like you would put indispose).Very good technology from Remi... the same guy who wrote Provider and RiverPod.