"清除内存"+ appWidget崩溃后,服务不会重新启动

Question

我已经构建了一个appWidget,它在onEnabled()方法上注册了一些服务.

问题是,在我使用内置任务管理器的Clean Memmory/Ram之后,appWidget视图崩溃(所有appWidgets TextView的文本都设置为默认值(TextView)),服务停止运行,从不重新启动.

这只发生在设置小部件一段时间后,如果我在设置小部件后立即清理Memmory/Ram,则不会发生错误,但我想这与任务管理器清理RAM的方法有关.

最后,我的问题是:有没有办法告诉android系统重新启动这些服务？我通过市场下载的其他应用程序似乎在此过程后继续正常工作.

会很高兴的想法和解决方案!谢谢先进,Gal :)

我使用的一些代码:

appWidget中的onEnabled()方法:

@Override
public void onEnabled(Context context) {
    super.onEnabled(context);

    Intent newinIntent = new Intent(context, CallService_1x1.class);
        context.startService(newinIntent);

    newinIntent = new Intent(context, SmsService_1x1.class);
        context.startService(newinIntent);
}

其中一个服务的一些方法(其他服务非常相似,因为这是来自他们的抽象方法):

 @Override
  public int onStartCommand(Intent intent, int flags, int startId) {
      // We want this service to continue running until it is explicitly
      // stopped, so return sticky.
      Log.d("SERVICE-SMS","CallMonitorService - onStartCommand created");
      return START_STICKY;
  } 

@Override
  public void onCreate() {
    super.onCreate();
    context = this.getApplicationContext();
    Log.d("SERVICE-SMS","CallMonitorService created");
    registerObserver();
  }

@Override
  public void onStart(Intent intent, int startId) {
    super.onStart(intent, startId);
  }

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

  @Override
  public IBinder onBind(Intent intent) {
    return null;
  }
  /**
   * Start the service to process that will run the content observer
   */
  public static void beginStartingService(Context context) {
   Log.d("SERVICE-SMS","CallMonitorService: beginStartingService()");
    context.startService(new Intent(context, CallService.class));
  }

  /**
   * Called back by the service when it has finished processing notifications,
   * releasing the wake lock if the service is now stopping.
   */
  public static void finishStartingService(Service service) {
    Log.d("SERVICE-SMS","CallMonitorService: finishStartingService()");
    service.stopSelf();
  }

Answer 1

经过大量的研究和一些尝试,解决了它!:)

刚刚添加了BroadcastReciever,可以监听包的更改和更新:

在清单文件中注册接收者:

<receiver android:name=".receivers.onRestartReciever">
        <intent-filter>
            <action android:name="android.intent.action.PACKAGE_REPLACED" />
            <action android:name="android.intent.action.PACKAGE_RESTARTED" />
            <data android:scheme="package" android:path="my.Package.Path" />
        </intent-filter>

• PACKAGE_REPLACED - 特别调用以通知应用程序更新.
• PACKAGE_RESTARTED - 当大多数memmory清洁工正在清理memmory时调用.
• "data"行用于监视应用于特定包的操作.

在这个接收器中,我再次启动我的服务,并重新启动widget视图(在这种情况下调用它的onUpdate()方法):

public class onRestartReciever extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub
    Log.d("DEBUG", "onRestartReciever");

    // Register Services
    MyWidget_1x1.registerServices(context);
    MyWidget_2x2.registerServices(context);

    // reInitialize appWidgets
    AppWidgetManager appWidgetManager=AppWidgetManager.getInstance(context);

    MyWidget_1x1 widget1x1=new CallWidgi();
    widget1x1.onUpdate
    (context,
         AppWidgetManager.getInstance(context),
            widget1x1.getIDs(context, appWidgetManager));

    MyWidget_2x2 widget2x2=new CallWidgi2();
    widget2x1.onUpdate(context,
                        AppWidgetManager.getInstance(context),
                            widget2x2.getIDs(context, appWidgetManager));
    }
}

registerServices(Context)是我的AppWidgetProvider类(MyWidget_1x1/MyWidget_2x2)中的静态方法,它注册所需的服务.

希望它也会帮助你=]