英文:
Adding custom routes on google map apps kml layer or alternatives
问题
我正在开发Android谷歌地图，我想在两个地点之间添加自定义路线，我已经在谷歌地图上绘制出来并将其导出为KML格式。但是当我尝试将其作为图层添加到地图上时：
layer = new KmlLayer(mapAPI, R.raw.kml_samples, getApplicationContext()); // 创建KML图层
layer.addLayerToMap();
调试器返回mapAPI为null，
结果就是，我得到的地图没有创建图层，
你能帮我解决这个问题吗？或者推荐另一种方法！谢谢
Android，谷歌地图，Java，KmlLayer
英文:
I'm working on Android google maps, I want to add a custom route between 2 places, I started drawing it on google maps I export it as Kml, when I try to add it as a layer to the map :
layer = new KmlLayer(mapAPI,R.raw.kml_samples, getApplicationContext()); // creating the kml layer
layer.addLayerToMap()
the debugger returns mapAPI:null ,
as a result, I get my map without the layer created,
can you help me with this? or recommend another way to do it! Thank you
Android, Google-maps, Java, KmlLayer
答案1
得分: 0
看起来你的mapAPI正在引用一个空对象。确保mapAPI是你的GoogleMap对象，图层将被渲染到该对象上，因为这是从本地资源文件渲染KML图层所需的内容之一。你可以参考Maps SDK for Android KML导入工具文档获取更多信息。
如果你需要一个导入KML文件并创建图层的示例，可以查看附带该工具库的演示应用中的KmlDemoActivity。要运行演示应用，请查阅这里的设置指南文档。
希望这能帮到你！
英文:
It looks like your mapAPI is referencing to a null object. Make sure that mapAPI is your GoogleMap object where the layer will be rendered as this is one of the things you need to render a KMLlayer from a local resource file. You may refer to the Maps SDK for Android KML Importing Utility for more information.
For an example of importing a KML file and creating a layer with it, take a look at the KmlDemoActivity in the demo app that ships with the utility library. To run the demo app, check the setup guide documentation here.
I hope this helps!
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