Android的谷歌地图获得边界坐标 [英] Android Google Maps get Boundary Co-ordinates

问题描述

我使用的谷歌地图V2在我的应用程序。当用户平移或缩放屏幕上我想获得地图的基础上，我想获取的POI，只有在屏幕视图的一部分的区域。
我经历了文档，但找不到任何帮助。

I am using Google Maps v2 in my application. When the user pans or zooms on the screen I would like to get the area of the map based on which I want to fetch the POI only in the screen view part.
I went through the documentation but could not find any help.

推荐答案

您需要使用<一个href="https://developers.google.com/maps/documentation/android/reference/com/google/android/gms/maps/Projection"><$c$c>Projection和<一href="https://developers.google.com/maps/documentation/android/reference/com/google/android/gms/maps/model/VisibleRegion"><$c$c>VisibleRegion类，以获得可见经纬度区。
所以，你的code看起来是这样的：

You need to use Projection and VisibleRegion classes in order to get visible LatLng region.
So your code would look something like:

LatLngBounds curScreen = googleMap.getProjection()
    .getVisibleRegion().latLngBounds;

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