如何将KMLlayer添加到Android GoogleMap [英] How to add KMLlayer to Android GoogleMap

问题描述

基于此链接 https://developers.google。 com / maps / documentation / android-api / utility / kml 我一直跟着它，直到我必须输入这段代码：

  KmlLayer图层=新的KmlLayer（getMap（），R.raw.kmlFile，getApplicationContext（））; 
  

我在'getMap（）'和'R.raw.kmlFile'我无法理解他所说的部分内容是什么

***要从本地资源导入和呈现KML数据集，您需要：

要渲染图层的GoogleMap对象。
包含KML数据的本地资源文件。
一个Context对象，它是打开本地资源文件所必需的。***

你能指导我做什么。

解决方案

您需要获取地图，然后在其上添加KML图层。类似的东西：

  ... 
 
私有GoogleMap mMap; 
 
 ... 
 
 @Override 
 public void onMapReady（GoogleMap googleMap）{
 
 mMap = googleMap; 
 ... 
} 
 
 ... 
 
 public void addKML（）{
 KmlLayer图层= new KmlLayer（mMap，R .raw.kmlFile，getApplicationContext（））; 
 layer.addLayerToMap（）; 
} 
 ... 
  

有关详情，请参阅 this 档案（ ）。

based on this link "https://developers.google.com/maps/documentation/android-api/utility/kml" I have followed it until to the point where I have to type this code:

KmlLayer layer = new KmlLayer(getMap(), R.raw.kmlFile, getApplicationContext());

I'm having a red line in 'getMap()' and 'R.raw.kmlFile' and I can't understand what it's trying to say in the part where he says

***To import and render a KML dataset from a local resource, you need:

A GoogleMap object where the layer is to be rendered. A local resource file containing the KML data. A Context object, which is required to open a local resource file.***

Can you please guide me on what to do.

解决方案

You need to get map and then add a KML layer on top of it. Something like that:

...

private GoogleMap mMap;

...

@Override
public void onMapReady(GoogleMap googleMap) {

    mMap = googleMap;
    ...
}

...

public void addKML() {
    KmlLayer layer = new KmlLayer(mMap, R.raw.kmlFile, getApplicationContext());
    layer.addLayerToMap();
}  
...

For details take a look at this file in that repo.

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