是否必须退出Android Lifecycle才能成为观察员? [英] Is it mandatory to remove yourself as an observer from Android Lifecycle?

问题描述

我正在构建一个Android Java类，该类实现了 LifecycleObserver 界面.

I am building an Android Java class which implements the LifecycleObserver interface.

这是构造函数:

public MyObserver(AppCompatActivity activity) {
    this.mActivity = new WeakReference<AppCompatActivity>(activity);
    activity.getLifecycle().addObserver(this);
}

是否有必要调用

Is it necessary to ever call removeObserver, using something like:

@OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
public void destroyListener() {
    if (this.mActivity.get() != null) {
        this.mActivity.get().getLifecycle().removeObserver(this);
    }
}

或者，我可以永远观察吗?

Or, can I observe forever?

推荐答案

TL; DR:不会.

TL;DR: Nope.

根据此链接此处，用户在其中询问了您的问题android-lifecycles Github回购. Google开发人员对此问题的回答是:

According to this link here, where a user asked your question on the android-lifecycles Github repo. The answer of a Google developer to this questions was:

是的，这就是新的生命周期感知组件的重点，否 需要取消订阅/删除观察员.

Yes, that's the whole point of the new lifecycle-aware components, no need to unsubscribe/remove observers.

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