Android 的 BroadcastReceivers 是否在新线程中启动? [英] Are Android's BroadcastReceivers started in a new thread?

问题描述

如果我在我的 Service 类中有一个扩展 BroadcastReceiver 的内部类，我是否应该关心同步，当 BroadcastReceiver 类读取/从 Service 类写入对象?或者换一种说法:BroadacstReceiver 的 onReceive() 方法是否在一个额外的线程中启动?

If I have an inner class that extends BroadcastReceiver within my Service class, should I care about synchronization, when the BroadcastReceiver class reads/writes to objects from the Service class? Or to put it in another way: Are BroadacstReceiver's onReceive() Methods started in an extra thread?

推荐答案

onReceive() 方法始终在主线程(也称为UI 线程")上调用，除非您要求将其安排在使用 registerReceiver() 变体的不同线程:

The onReceive() method is always called on the main thread (which is also referred to as "UI thread"), unless you requested it to be scheduled on a different thread using the registerReceiver() variant:

Context.registerReceiver(BroadcastReceiver receiver,
                         IntentFilter filter,
                         String broadcastPermission,
                         Handler scheduler)

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