问题描述
有什么办法怎么去从code中的Manifest.xml定义一个BroadcastReceiver的参考？
Is there any way how to get a reference for a BroadcastReceiver defined in Manifest.xml from code?
在我的情况下，我们使用的是需要包含在manifest.xml一个BroadcastReceiver。然而，它具有的功能，我想从我们的code范围内重复使用。因此，而不是创造另一个类似的广播接收器，并从code实例化，我想获得现有的一个参考。
In my case, we are using a BroadcastReceiver that needs to be included in the Manifest.xml. However it has functionality I would like to reuse from within our code. So instead of creating another similar BroadcastReceiver and instantiating it from the code I would like to obtain a reference to the existing one.
其他信息：
我的目标是订阅事件对我的广播接收器从我的活动 - 我想一个事件重复使用 - 而不是我的活动创造这个接收器的另一个实例，我想获得现有的一个参考。
My goal is to subscribe to an event on my BroadcastReceiver from my activity - an event that I would like to reuse - instead of creating another instance of this receiver in my activity I would like to obtain a reference to the existing one.
推荐答案
在注册一个广播接收器在清单，你注册类，而不是它的实例。每一个广播发生时，你的＆lt;接收＆GT; 需要处理，一个新的实例被创建这样做，所以你不能真正得到你一个参考重新描述。
When registering a BroadcastReceiver in the manifest, you're registering the class, not an instance of it. Each time a broadcast occurs that your <receiver> needs handle, a new instance is created to do so, so you can't really get a reference to one as you're describing.
这是完全正常的动态实例化和注册，你也已经在静态清单注册的接收器类的实例。我想指出，虽然，如果静态注册类将是无论如何运行 - 也就是说，如果它要处理相同的广播的动态登记注册的 - 你可能会考虑只通知你的活动从接收器类 - 例如，用 LocalBroadcastManager ，另一个事件总线实现，等等 - 而不是实质上重复接收器
It's perfectly fine to dynamically instantiate and register an instance of a Receiver class that you've also statically registered in the manifest. I would note, though, that if the statically registered class is going to be run anyway - that is, if it's going to handle the same broadcasts as the dynamically registered one - you might consider just notifying your Activity from the Receiver class - e.g., with LocalBroadcastManager, another event bus implementation, etc. - instead of essentially duplicating Receivers.
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