Teams Winter 2011/team1/BlackBerry/Add Mapping Option

10. Add Mapping Option

10.1. Add the Map Option to the manu:

   //Show the address on the map
   ImageMenuItem mapItem = new ImageMenuItem("Address on Map", 500, 5, MENU_MAP);
   _mainScreen.addMenuItem(mapItem);

10.2. Implement address locator:

   mapItem.setCommand(new Command(new CommandHandler(){
      public void execute(ReadOnlyCommandMetadata metadata, Object context)
      {
         Student student = (Student) _keywordFilterField.getSelectedElement();
               
         if(student != null)
         {                   
            try
            {                       
               String address = student.getAddress();
               //start coordinates
               Coordinates co = new Coordinates(45.423488, -75.697929, 0);
               Landmark[] landm = Locator.geocode(address, co);
               //Get latitude and longitude
               double lon = landm[0].getQualifiedCoordinates().getLongitude()*100000.0 ;
               double lat = landm[0].getQualifiedCoordinates().getLatitude()*100000.0;
                //create XML document
               StringBuffer document = new StringBuffer("<location-document><location lon='");
               document.append(lon).append("' lat='").append(lat).append("' label='").append(address);
               document.append("' description='Student Address' zoom='10'/></location-document>");
                       
               // Invoke maps application for current Contact
               Invoke.invokeApplication(Invoke.APP_TYPE_MAPS, new MapsArguments(MapsArguments.ARG_LOCATION_DOCUMENT, document.toString()));
                       
              } catch(LocatorException ex){
                  Dialog.alert("cannot get location: " + ex.getMessage());
              } catch(Exception ex){
                  Dialog.alert("map application is not available: "+ ex.getMessage());
             }
            }
          }
     }));