如何检查 Receiver 是否已在 Android 中注册? [英] How to check if Receiver is registered in Android?

问题描述

我需要检查我注册的接收器是否仍然注册，如果没有我如何检查它任何方法?

I need to check if my registered receiver is still registered if not how do i check it any methods?

推荐答案

我不确定 API 是否直接提供 API，如果您考虑 这个线程:

I am not sure the API provides directly an API, if you consider this thread:

我也在想同样的事情.
就我而言，我有一个 BroadcastReceiver 实现，它调用Context#unregisterReceiver(BroadcastReceiver) 在处理接收到的 Intent 后，将自身作为参数传递.
接收者的 onReceive(Context, Intent) 方法被调用的可能性很小不止一次，因为它注册了多个 IntentFilters，这就产生了从 Context#unregisterReceiver(BroadcastReceiver) 抛出 IllegalArgumentException 的可能性.

I was wondering the same thing.
In my case I have a BroadcastReceiver implementation that calls Context#unregisterReceiver(BroadcastReceiver) passing itself as the argument after handling the Intent that it receives.
There is a small chance that the receiver's onReceive(Context, Intent) method is called more than once, since it is registered with multiple IntentFilters, creating the potential for an IllegalArgumentException being thrown from Context#unregisterReceiver(BroadcastReceiver).

在我的例子中，我可以在调用 Context#unregisterReceiver(BroadcastReceiver) 之前存储一个私有的同步成员来检查，但它会是如果 API 提供了检查方法，则更清晰.

In my case, I can store a private synchronized member to check before calling Context#unregisterReceiver(BroadcastReceiver), but it would be much cleaner if the API provided a check method.

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