Showing Directions with the Built-In Maps App

In addition to displaying a single point using the built-in Maps app, you can also display a route. The MapsDirectionsTask class allows you to specify a start and end point for the route, as shown in the following example:

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MapsDirectionsTask mapsDirectionsTask = new MapsDirectionsTask();

GeoCoordinate startCoordinate = new GeoCoordinate(47.635, -122.362);
mapsDirectionsTask.Start
           = new LabeledMapLocation("Start Point", startCoordinate);

GeoCoordinate endCoordinate = new GeoCoordinate(47.650, -122.349);
mapsDirectionsTask.End = new LabeledMapLocation("End Point", endCoordinate);

mapsDirectionsTask.Show();

If you provide a null GeoCoordinate to the LabeledMapLocation, for either the Start or End locations, the label parameter is used as a search term. For example, to display directions from the phone’s current location to the Space Needle in Seattle, you could use the following:

Click here to view code image

MapsDirectionsTask mapsDirectionsTask = new MapsDirectionsTask();
mapsDirectionsTask.End = new LabeledMapLocation("Space Needle", null);
mapsDirectionsTask.Show();