Question

我使用的是前台Android Service，每60秒通过REST API通过Retrofit请求资源。此类服务的运行过程与应用程序不同，这是必需的，因此，当进入休眠模式时，Android不会杀死它。

public class ResourceService extends Service {

   ...

   private BroadcastReceiver mReceiver;

   @Override
   public void onCreate() {
      super.onCreate();
      // create mReceiver (BroadcastReceiver)
      // create intentFilter (IntentFilter)     
      registerReceiver(mReceiver, intentFilter);
   }

   ...
   @Override
   public int onStartCommand(Intent intent, int flags, int startId) {
      // main logic
   }

   @Override
   public void onDestroy() {
      super.onDestroy();
      unregisterReceiver(mReceiver);        
   }
}

注销应用程序时，将调用onDestroy()方法，因此也会调用unregisterReceiver()。该应用程序将按预期进行登录活动，该服务成功停止。但是，logcat会出现以下异常：

09-18 09:30:06.627 849-849/foo.mycompany.es.myapp:externalProcess E/ActivityThread: Service foo.mycompany.es.myapp.resources.ResourcesService has leaked IntentReceiver foo.mycompany.es.myapp.resources.ResourcesService$2@7c90278 that was originally registered here. Are you missing a call to unregisterReceiver()?
android.app.IntentReceiverLeaked: Service foo.mycompany.es.myapp.resources.ResourcesService has leaked IntentReceiver foo.mycompany.es.myapp.resources.ResourcesService$2@7c90278 that was originally registered here. Are you missing a call to unregisterReceiver()?
    at android.app.LoadedApk$ReceiverDispatcher.<init>(LoadedApk.java:1222)
    at android.app.LoadedApk.getReceiverDispatcher(LoadedApk.java:993)
    at android.app.ContextImpl.registerReceiverInternal(ContextImpl.java:1348)
    at android.app.ContextImpl.registerReceiver(ContextImpl.java:1328)
    at android.app.ContextImpl.registerReceiver(ContextImpl.java:1322)
    at android.content.ContextWrapper.registerReceiver(ContextWrapper.java:630)
    at foo.mycompany.es.myapp.resources.ResourcesService.registrarReceptor(ResourcesService.java:104)
    at foo.mycompany.es.myapp.resources.ResourcesService.onCreate(ResourcesService.java:74)
    at android.app.ActivityThread.handleCreateService(ActivityThread.java:3534)
    at android.app.ActivityThread.-wrap6(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1732)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:154)
    at android.app.ActivityThread.main(ActivityThread.java:6776)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1496)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1386)

我已经看到有关该主题的similar answer，但它指的是活动。这样的答案状态unregisterReceiver()应该放在onPause()方法中，但是在Service超类中没有这样的方法可以覆盖。

有人知道上述错误的原因是什么吗？

谢谢。

Answer 1

在onstart命令中调用unregisterReceiver（locationReceiver）

Answer 2

在调用super.onDestroy（）之前尝试注销接收器

   @Override
   public void onDestroy() {
      unregisterReceiver(mReceiver);   
      super.onDestroy();     
   }

服务泄漏了最初在此处注册的IntentReceiver。您是否缺少对unregisterReceiver（）的调用？

2 个答案: