RequestLocationUpdates参数的android [英] RequestLocationUpdates parameter android

问题描述

我的困惑在这个参数

locationManager.requestLocationUpdates(provider, 
                60000,
                10,
                listener);

因此​​，这里是如何执行位置更新的监听器。 如果时间= 60000和距离= 10 那么它将执行或 如果时间= 60000或距离= 10 然后它会执行。 请帮我走出这个困惑。

So here is how it executes location update listener. if time = 60000 AND distance = 10 then it will execute or if time = 60000 OR distance = 10 then it will execute. Please help me to come out this confusion.

推荐答案

据<一href="http://developer.android.com/reference/android/location/LocationManager.html#requestLocationUpdates%28long,%20float,%20android.location.Criteria,%20android.app.PendingIntent%29"相对=nofollow>的文档：

位置更新之间的运行时间将不会少于 minTime

The elapsed time between location updates will never be less than minTime

所以 minTime 花费precedence。另外它说：

So minTime takes precedence. Further on it says :

的minDistance依旧参数也可用于控制的位置更新频率。如果大于0，则该位置提供者将只发送您的应用程序更新时的位置已经被至少minDistance依旧米改变，至少minTime毫秒已通过

The minDistance parameter can also be used to control the frequency of location updates. If it is greater than 0 then the location provider will only send your application an update when the location has changed by at least minDistance meters, AND at least minTime milliseconds have passed

所以它应该是如果（时间＆gt; = minTime和DIST＆GT; = minDistance依旧），意义也不会过早的检查距离。但在此之前软糖不采取这些参数过于认真。

So it should be if(time >= minTime AND dist >= minDistance), meaning won't check distance if too early. BUT don't take those parameters too seriously before JellyBeans.

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