如何通过url链接从谷歌地图获取kml文件？

Question

我使用Google地图为智能手机创建应用，我希望展示从A点到B点的道路。如何做到这一点？

我尝试使用这样的网址：

https://maps.google.com/maps?saddr=50.06469,19.944788&daddr=50.064001,19.92039&dirflg=w&output=kml

但它不起作用（在应用程序中我得到null而不是kml文件）。

Gimer

代码：

try {
                    /* Create a URL we want to load some xml-data from. */
                    URL url = new URL("hhttps://maps.google.com/maps?saddr=50.06469,19.944788&daddr=50.064001,19.92039&dirflg=w&output=kml");

                    /* Get a SAXParser from the SAXPArserFactory. */
                    SAXParserFactory spf = SAXParserFactory.newInstance();
                    SAXParser sp = spf.newSAXParser();

                    /* Get the XMLReader of the SAXParser we created. */
                    XMLReader xr = sp.getXMLReader();
                    /* Create a new ContentHandler and apply it to the XML-Reader*/
                    ExampleHandler myExampleHandler = new ExampleHandler();
                    xr.setContentHandler(myExampleHandler);

                    /* Parse the xml-data from our URL. */
                    xr.parse(new InputSource(url.openStream()));
                    /* Parsing has finished. */

                    /* Our ExampleHandler now provides the parsed data to us. */
                    ParsedExampleDataSet parsedExampleDataSet =
                                                                    myExampleHandler.getParsedData();

                    /* Set the result to be displayed in our GUI. */
                    tv.setText(parsedExampleDataSet.toString());

            } catch (Exception e) {
                    /* Display any Error to the GUI. */
                    tv.setText("Error: " + e.getMessage());
                    Log.e(MY_DEBUG_TAG, "WeatherQueryError", e);
            }

我也试试这个：

final BufferedReader is = new BufferedReader(new InputStreamReader(new URL(url).openStream()));

它适用于kml文件，但当url来自谷歌地图时不是。