如何在 Android 的服务类中实现 BroadcastReceiver？

Question

我需要在我创建的 Service 类中实现 BroadcastReceiver：

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，我必须使用线程来实现下载模拟。我无法将服务类扩展到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？

Answer 1

将 BroadcastReceiver 作为顶级类或服务中的内部类。并在您的服务中获取接收者的参考。像这样：

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);
    }
}