我是否需要为使用AlarmManager并激活锁定定期使用LocationClient？ [英] Do I need to Use an AlarmManager and WakeLock to periodically use a LocationClient?

问题描述

从一年前的帖子表明，它是需要使用激活锁定保留CPU收集位置信息（CommonsWare尤其是这里的Android定期GPS位置更新与AlarmManager服务内）。不过，我不明白为什么我不能简单地调用一个服务，每28分钟，连接LocationClient，设置定时器等待2分钟，然后拿到最近的位置，断开客户端，然后停止该服务。

由于Commonsware，谁在这里分叉他的榜样用户（<一href=\"https://github.com/alexbirkett/cwac-locpoll/blob/master/src/com/commonsware/cwac/locpoll/LocationPollerService.java\" rel=\"nofollow\">https://github.com/alexbirkett/cwac-locpoll/blob/master/src/com/commonsware/cwac/locpoll/LocationPollerService.java)用LocationListener的，而不是一个LocationClient，我想知道他的答案是否还aplies。

感谢您的时间！

编辑：难道这个简单，其中一个AlarmManager调用一个服务，每28分钟数>服务获得一个激活锁定和两分钟的计时器经过的LocationClient是连接>超过2分钟已经过去，我可以杀死服务并释放激活锁定？

这将是这个样子：

 电源管理PM =（电源管理）getBaseContext（）getSystemService（Context.POWER_SERVICE）。
    PowerManager.WakeLock WL = pm.newWakeLock（PowerManager.PARTIAL_WAKE_LOCK，）;
    wl.acquire（）;    定时器theTimer =新的Timer（）;
    theTimer.schedule（新的TimerTask（）{        @覆盖
        公共无效的run（）{
            如果（checkIfGooglePlay（））{
                getPostLocation（）;
                w1.release（）;
                stopSelf（）;
            }
        }
    }，TWO_MINUTES）;    返回Service.START_NOT_STICKY;
 

解决方案

  

不过，我不明白为什么我不能简单地调用一个服务，每28分钟，连接LocationClient，设置定时器等待2分钟，然后拿到最近的位置，断开客户端，然后停止该服务。

您也许可以轮询 LocationClient 。不过，你仍然需要一个激活锁定，因为该设备将这两分钟内入睡，否则，您仍然需要 AlarmManager 为每28分钟的一部分，我不知道是否 LocationClient 将实施超出其他要求。

Posts from over a year ago suggest that it is necessary to use a WakeLock to reserve CPU to gather location information (CommonsWare in particular here Android Periodic GPS location updates with AlarmManager inside a Service). However I do not understand why I cannot simply call a Service every 28 minutes, connect the LocationClient, set a timer to wait 2 minutes, then get the most recent location, disconnect the client, and then stop the service.

Because Commonsware and the user who forked his example here (https://github.com/alexbirkett/cwac-locpoll/blob/master/src/com/commonsware/cwac/locpoll/LocationPollerService.java) use a LocationListener, and not a LocationClient, I was wondering whether his answer still aplies.

Thanks for your time!

EDIT: Is it this simple, where an AlarmManager calls a Service every 28 minutes > the Service acquires a WakeLock and a timer elapses for two minutes as the LocationClient is connect > once two minutes has elapsed, I can kill the service and release the WakeLock?

It would look something like this:

    PowerManager pm = (PowerManager) getBaseContext().getSystemService(Context.POWER_SERVICE);
    PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "");
    wl.acquire();

    Timer theTimer = new Timer();
    theTimer.schedule(new TimerTask() {

        @Override
        public void run() {
            if(checkIfGooglePlay()) {
                getPostLocation();
                w1.release();
                stopSelf(); 
            }
        }
    }, TWO_MINUTES);

    return Service.START_NOT_STICKY;

解决方案

However I do not understand why I cannot simply call a Service every 28 minutes, connect the LocationClient, set a timer to wait 2 minutes, then get the most recent location, disconnect the client, and then stop the service.

You probably can poll the LocationClient. However, you will still need a WakeLock, as the device will fall asleep during those two minutes otherwise, you will still need AlarmManager for the "every 28 minutes" part, and I don't know if LocationClient will impose other requirements beyond those.

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