如何获得GPS坐标在Android的每一分钟？ [英] How to get gps coordinates every minute in Android?

问题描述

我要得到我的坐标的每一分钟，即使用户不动。所以我用requestLocationUpdates以下参数：

I want to get my coordinates every minute, even if a user is not moving. So i used requestLocationUpdates with the following parameters:

  locMgr.requestLocationUpdates(
                    LocationManager.GPS_PROVIDER,
                    60000,      // minTime in ms
                    0,      // minDistance in meters
                    PosljiLokacijo.this);

但是当我测试它在我的HTC Hero（安卓2.1），我不动，onLocationChanged（）不会被调用。如果我改变minDistance依旧为1，那么我得到一些更新的开始，但在那之后，他们在非常不规则的时间间隔。

But when i test it on my HTC Hero (2.1 Android) and i am not moving, onLocationChanged() is never called. If i change minDistance to 1, then i get a few updates at start but after that, they come in very unregular intervals.

我应该如何选择这两个参数（minTime和minDistance依旧）接收坐标每一分钟？

How should i choose these 2 parameters (minTime and minDistance) to receive coordinates every minute?

推荐答案

我不认为minTime或minDistance依旧将有助于在这种情况下，除非：保存的最后位置为变量，其输出的每一分钟。让locationManager覆盖这些变量所以一分钟后，位置变化变得可见。这样，就没有必要等待更新为你的变量总是抱着的实际位置。

I don't think "minTime" or "minDistance" will help in this case, unless: save the last location into variables and output them every minute. Let the locationManager overwrite those variables so after a minute, the location change becomes visible. That way there's no need to wait for an update as your variables always hold the actual position.

您还可以检索来自locationManager位置和一分钟（或任何你想要的间隔定）后，再次要求的位置，而无需使用 requestLocationUpdates 。

You can also retrieve the location from the locationManager and request the location again after one minute (or whatever you'd like your interval to be) without using requestLocationUpdates.

例如。看看在定时器来设置你的方法，获取位置重复呼叫：
http://developer.android.com/reference/java/util/Timer.html

e.g. take a look at the Timer to set a repeated call to your method that gets the location:
http://developer.android.com/reference/java/util/Timer.html

这样，你也应该保存电池，系统将无法寻找更新所有的时间。

That way you should also save battery as the system won't be looking for updates all the time.

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