弱参考和事件处理 [英] WeakReference and event handling

问题描述

通过WeakReference实现事件处理是一个很好的做法，如果该事件是唯一持有该引用的事件，并且我们需要该对象被垃圾回收？

Is it a good practice to implement event handling through WeakReference if that event is the only thing holding the reference and that we would need the object to be garbage collected?

作为这个参数：

有人说如果你订阅了，你有责任取消订阅你应该这样做。

Folks say that if you subscribe to something it’s your responsibility to unsubscribe and you should do it.

推荐答案

可以让事情取消订阅的习惯很好，但有时候这是一个明显的清理方法，可以做到这一点。我们最近在这个问题上发布了博客文章;它包括使用WeakReference可以轻松订阅事件的方法。

It is good to get in the habit of unsubscribing from events when you can, but sometimes there isn't an obvious "cleanup" method where it can be done. We recently posted a blog article on this subject; it includes methods that make it easy to subscribe to an event with a WeakReference.

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