Android的BroadcastReceivers是否在一个新线程中启动？ [英] Are Android's BroadcastReceivers started in a new thread?

问题描述

如果我有一个内部类，扩展 BroadcastReceiver 在我的服务类中，我应该关心同步， BroadcastReceiver 类从 Service 类读取/写入对象？
或者换句话说： BroadacstReceiver 的 onReceive（）线程？

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（）方法总是在主线程（也称为UI线程 ），除非你使用registerReceiver（）变量来请求它在不同的线程上调度：

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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