Question

I need in my Android Application the Distance and the Driving Time between Two cities.

Is there a possibility to calculate this things for example via Google Navigator or Google Maps? (the driving distance, not the air-line distance)

Answer 1

Instead of using the web api directly as mentioned above you should use the Java wrappers as provided by http://code.google.com/p/gdata-java-client/ with more information about the maps api in detail here http://code.google.com/apis/maps/documentation/mapsdata/developers_guide_java.html

Keep in mind that this is NOT the android maps jar api but additional api stuff so you will need to include the jar in your apk build.

Answer 2

Yes, it s possible, but you need to use the Google Maps Web API, since the Android SDK doesn t have any route calculation features (anymore, since v0.9).

You can find some sample for route calculation here (see my reply: How to draw a path on a map using kml file?)

What you do is you create a Google maps request URL including all necessary parameters like geo points and mode (pedestrian, driving) and then fetch the response as KML (xml) data (you just add &output=kml to the Google URL), which holds all the information you need (time and distance). You need to parse the response (kml/xml) then, with i.e. a sax parser, as in my sample code.

Also see this post: How to get Google Maps Public Transit Directions by HTTP server-side request

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