Blackberry Card
Blackberry Map cannot display custom icon for POI.
Things you can include in a location on a Blackberry map:
- Latitude of location * 100,000. South negative.
- The longitude of the location is * 100,000. The West is negative.
- The label displayed next to it.
- Description displayed when user selects BlackBerry smartphone
the details. - Scale level from 0 to MAX_ZOOM.
- Address
- City
- Province or State
- Country
- Postcode
- Telephone
- Fax
- URL
- E-mail address
- Category
- Rating information from 0 to 5
See What is a BlackBerry Maps Location Document Format
Also see How To - Call BlackBerry Cards
Using MapField
Alternatively, you can try MapField + manager / screen overrides.
Custom extension for MapField:
class CustomMapField extends MapField { Bitmap mIcon; XYRect mDest; public void moveTo(Coordinates coordinates) { super.moveTo(coordinates); mDest = null; } protected void paint(Graphics graphics) { super.paint(graphics); if (null != mIcon) { if (null == mDest) { XYPoint fieldOut = new XYPoint(); convertWorldToField(getCoordinates(), fieldOut); int imgW = mIcon.getWidth(); int imgH = mIcon.getHeight(); mDest = new XYRect(fieldOut.x - imgW / 2, fieldOut.y - imgH, imgW, imgH); } graphics.drawBitmap(mDest, mIcon, 0, 0); } } }
Usage example:
class Scr extends MainScreen { CustomMapField mMapField; Coordinates mCoordinates; public Scr() { LocationProvider provider = null; Location location = null; try { provider = LocationProvider.getInstance(null); } catch (LocationException e) { e.printStackTrace(); } try { location = provider.getLocation(-1); } catch (LocationException e) { e.printStackTrace(); } catch (InterruptedException e) { e.printStackTrace(); } mCoordinates = location.getQualifiedCoordinates(); add(new LabelField("Latitude: " + String.valueOf(Coordinates.convert( mCoordinates.getLatitude(), Coordinates.DD_MM_SS)))); add(new LabelField("Longitude: " + String.valueOf(Coordinates.convert( mCoordinates.getLongitude(), Coordinates.DD_MM_SS)))); mMapField = new CustomMapField(); mMapField.mIcon = Bitmap.getBitmapResource("poi_icon.png"); mMapField.moveTo(mCoordinates); add(mMapField); } }
see also
Using MapComponent in Blackberry
GPS and BlackBerry Map Development Guide
Prepare GPS data
If this is a real device, make sure GPS is accessible and turned on.
If this is a simulator, then before starting the program, use the simulator menu → simulate → GPS location to set GPS data.
Another option is to hardcode your own Coordinates and use them without GPS:
double latitude = 51.507778; double longitude = -0.128056; Coordinates mCoordinates = new Coordinates(latitude, longitude, 0);