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POHow to remove current location pin from map in android, keeping other pins
 

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  1. POHow to remove current location pin from map in android, keeping other pins
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    <p>I have a map which at the moment I place a custom pin on the map every so often from the GPS position of the user, this is also dependent on when their position changes but with the GPS being a bit choppy here it does it quite a lot. At the moment a new pin is placed on the map every time this happens. I want to remove the previous pin so that just the one pin for the users location is shown on the map, like a live representation of the users position.</p> <p>In addition to this. Is it possible to have a separate set of pins on the map (which their positions never change) and ensure they are not also cleared when the users position is updated.</p> <p>Any other comments on the code would be appreciated.</p> <pre><code>Imports... public class MapOne extends MapActivity implements LocationListener { ... fields @Override protected void onCreate(Bundle icicle) { ....onCreate initialisations } @Override protected void onPause() { // TODO Auto-generated method stub compass.disableCompass(); lm.removeUpdates(this); super.onPause(); } @Override protected void onResume() { // TODO Auto-generated method stub compass.enableCompass(); lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 20, this); super.onResume(); } @Override protected boolean isRouteDisplayed() { return false; } public void onLocationChanged(Location l) { // TODO Auto-generated method stub lat = (int)(l.getLatitude() *1E6); longi = (int)(l.getLongitude() *1E6) ; GeoPoint ourLocation = new GeoPoint(lat, longi); OverlayItem overlayItem = new OverlayItem(ourLocation, "Hey!", "What's up!?"); CustomPinpoint custom = new CustomPinpoint(customMarker, Map.this); custom.insertPinpoint(overlayItem); overlayList.add(custom); } } </code></pre> <p>Pinpoint class for reference if required.</p> <pre><code>public class Pinpoint extends ItemizedOverlay&lt;OverlayItem&gt; { private ArrayList&lt;OverlayItem&gt; pinpoints = new ArrayList&lt;OverlayItem&gt;(); private Context c; public CustomPinpoint(Drawable defaultMarker) { super(boundCenter(defaultMarker)); // TODO Auto-generated constructor stub } public CustomPinpoint(Drawable m, Context context) { // TODO Auto-generated constructor stub this(m); setC(context); } @Override protected OverlayItem createItem(int i) { // TODO Auto-generated method stub return pinpoints.get(i); } @Override public int size() { // TODO Auto-generated method stub return pinpoints.size(); } public void insertPinpoint(OverlayItem item) { pinpoints.add(item); this.populate(); } public Context getC() { return c; } public void setC(Context c) { this.c = c; } } </code></pre>
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