如何在android中读取谷歌地图的kmz文件

Question

我有 KMZ 文件，我想解析该 KMZ 文件，以便我可以读取我尝试使用 KmlLayer 但没有得到任何帮助的该文件的数据，这是我的代码

InputStream inputStream = new FileInputStream(path);
KmlLayer layer = new KmlLayer(mMap, inputStream, getApplicationContext());
layer.addLayerToMap();

但我在创建 KmlLayer 任何解决方案的对象时遇到了 Parsing 异常。

Answer 1

因为KMZ 被压缩KML 你应该在读取数据之前将unzip .kmz 归档到.kml 或使用ZipInputStream 而不是FileInputStream 就像在这个createLayerFromKmz() 方法中一样：

private KmlLayer createLayerFromKmz(String kmzFileName) {
    KmlLayer kmlLayer = null;

    InputStream inputStream;
    ZipInputStream zipInputStream;

    try {
        inputStream = new FileInputStream(kmzFileName);
        zipInputStream = new ZipInputStream(new BufferedInputStream(inputStream));
        ZipEntry zipEntry;

        while ((zipEntry = zipInputStream.getNextEntry()) != null) {
            if (!zipEntry.isDirectory()) {
                String fileName = zipEntry.getName();
                if (fileName.endsWith(".kml")) {
                    kmlLayer = new KmlLayer(mGoogleMap, zipInputStream, getApplicationContext());
                }
            }

            zipInputStream.closeEntry();
        }

        zipInputStream.close();
    }
    catch(IOException e)
    {
        e.printStackTrace();
    } catch (XmlPullParserException e) {
        e.printStackTrace();
    }

    return kmlLayer;
}

您可以使用它，例如这样：

@Override
public void onMapReady(GoogleMap googleMap) {
    mGoogleMap = googleMap;

    // path to your kmz file 
    String kmzFileName = Environment.getExternalStorageDirectory() + "/KMZ/markers.kmz";
    try {
        KmlLayer kmlLayer = createFromKmz(kmzFileName);
        kmlLayer.addLayerToMap();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (XmlPullParserException e) {
        e.printStackTrace();
    }

}

注意！ createLayerFromKmz() 仅适用于“平面”KMZ 结构。