如何在 Android 的服务类中实现 BroadcastReceiver? [英] How do I implement a BroadcastReceiver in a Service Class in Android?
问题描述
我需要在我创建的服务类中实现 BroadcastReceiver:
I need to implement BroadcastReceiver in a Service class I have created:
public class MyService extends Service
在这个类中,当用户按下实现 sendBroadcast()
的 MyActivity
类中的按钮时,我必须通过使用线程 - 睡眠来实现下载的模拟.我无法将 Service 类扩展到 BroadcastReceiver
,因为它已经扩展到 Service
.谁能帮我弄清楚如何实现这个机制?
In this class I have to implement a simulation of download by using a Thread - Sleep when the user presses the button in the MyActivity
class which implements sendBroadcast()
. I cannot extend the Service class to BroadcastReceiver
as it is already extends to Service
. Can anyone help me to figure it out how to implement this mechanism?
推荐答案
将 BroadcastReceiver 作为顶级类或作为服务中的内部类.并在您的服务中获取接收器的参考.像这样:
Have the BroadcastReceiver as a top-level class or as an inner class in your service. And get a reference of the receiver in your service. Like this:
public class MyService extends Service {
BroadcastReceiver mReceiver;
// use this as an inner class like here or as a top-level class
public class MyReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// do something
}
// constructor
public MyReceiver(){
}
}
@Override
public void onCreate() {
// get an instance of the receiver in your service
IntentFilter filter = new IntentFilter();
filter.addAction("action");
filter.addAction("anotherAction");
mReceiver = new MyReceiver();
registerReceiver(mReceiver, filter);
}
}
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