如何在Google地图片段android studio中导入KML多边形文件

Question

这是我在这里的第一个问题，请耐心等待。

我正在研究用于Android开发的Java，现在在一个问题上困扰了数周：

我只是无法在应用程序中导入简单的KML文件！

我尝试了kmlLayer，将文件作为输入流放入了自己的设备中，但对我没有任何帮助。 （使用将字符串（文件在设备中的位置）转换为编码为“ utf-8”的InputStream的代码）

所以，我以某种方式如何导入此多边形.kml？

<?xml version="1.0" encoding="utf-8" ?>
<kml xmlns="http://www.opengis.net/kml/2.2">
<Document id="root_doc">
<Schema name="Extra_31_168_366" id="Extra_31_168_366">
    <SimpleField name="Name" type="string"></SimpleField>
</Schema>
<Folder><name>Extra_31_168_366</name>
  <Placemark>
    <name>Zona Extra a levantar</name>
    <Style><LineStyle><color>FF232323</color><width>0.737006</width></LineStyle><PolyStyle><fill>0</fill></PolyStyle></Style>
      <MultiGeometry><Polygon><outerBoundaryIs><LinearRing><coordinates>1.04761446057425,43.1864681306065 1.04740371376916,43.186733854839 1.04859489136319,43.1875310275366 1.04966695119782,43.1877875888645 1.05063821908219,43.1884015034707 1.0513254369249,43.1888596486991 1.05327713559821,43.1889879293631 1.05492645842072,43.1892170019774 1.05634670862899,43.1890520696951 1.05765700398243,43.1895835181601 1.05871073800792,43.1907655328496 1.05776695883726,43.1951179125201 1.06452918240956,43.1965839772512 1.06447420498214,43.195631035176 1.06418099203592,43.1933403090336 1.06093732381831,43.1920391765848 1.05740044265448,43.1885939244666 1.05425298493486,43.18868097206 1.05134834418633,43.1879479396945 1.04761446057425,43.1864681306065</coordinates></LinearRing></outerBoundaryIs></Polygon></MultiGeometry>
  </Placemark>
</Folder>
</Document></kml>

现在，我几乎像这样手动操作：Excel，世界并将此代码放入我的OnMapReady（GoogleMap googleMap）：

PolygonOptions rectOptions = new PolygonOptions()
                .add(new LatLng(43.1864681306065,1.04761446057425), new LatLng(43.186733854839,1.04740371376916), new LatLng(43.1875310275366,1.04859489136319), new LatLng(43.1877875888645,1.04966695119782), new LatLng(43.1884015034707,1.05063821908219), new LatLng(43.1888596486991,1.0513254369249), new LatLng(43.1889879293631,1.05327713559821), new LatLng(43.1892170019774,1.05492645842072), new LatLng(43.1890520696951,1.05634670862899), new LatLng(43.1895835181601,1.05765700398243), new LatLng(43.1907655328496,1.05871073800792), new LatLng(43.1951179125201,1.05776695883726), new LatLng(43.1965839772512,1.06452918240956), new LatLng(43.195631035176,1.06447420498214), new LatLng(43.1933403090336,1.06418099203592), new LatLng(43.1920391765848,1.06093732381831), new LatLng(43.1885939244666,1.05740044265448), new LatLng(43.18868097206,1.05425298493486), new LatLng(43.1879479396945,1.05134834418633), new LatLng(43.1864681306065,1.04761446057425));
googleMap.addPolygon(rectOptions);

Answer 1

您可以通过先创建KmlLayer类的实例来向地图添加KML图层。有两种（2）方法来实例化KmlLayer：

• 从本地资源渲染KML数据集：
  • KmlLayer layer = new KmlLayer(getMap(), R.raw.kmlFile, getApplicationContext());
• 从本地流中渲染KML数据集
  • KmlLayer layer = new KmlLayer(getMap(), kmlInputStream, getApplicationContext());

创建KmlLayer后，调用addLayerToMap（）将导入的数据添加到地图上。

• layer.addLayerToMap();

更多信息，请参考Android版Maps SDK KML Importing Utility