在openstreetmap上單擊繪製標記android

我是新開的街道地圖地圖。我想把標記放在我點擊的地圖上。我也想刪除以前的標記。請幫幫我。提前致謝。這是我的代碼。我在這個問題請求中從2天掙扎。在openstreetmap上單擊繪製標記android

Overlay touchOverlay = new Overlay(this) { 
ItemizedIconOverlay<OverlayItem> anotherItemizedIconOverlay = null; 

@Override 
protected void draw(Canvas arg0, MapView arg1, boolean arg2) { 

} 

@Override 
public boolean onSingleTapConfirmed(final MotionEvent e, 
final MapView mapView) { 
Projection proj = mapView.getProjection(); 
GeoPoint loc = (GeoPoint) proj.fromPixels((int) e.getX(), 
(int) e.getY()); 
String longitude = Double 
.toString(((double) loc.getLongitudeE6())/1000000); 
String latitude = Double 
.toString(((double) loc.getLatitudeE6())/1000000); 
Toast toast = Toast.makeText(getApplicationContext(), "Longitude:" 
+ longitude + " Latitude: " + latitude, Toast.LENGTH_SHORT); 
toast.show(); 
ArrayList<OverlayItem> overlayArray = new ArrayList<OverlayItem>(); 
OverlayItem mapItem = new OverlayItem("", "", new GeoPoint(
(((double) loc.getLatitudeE6())/1000000), 
(((double) loc.getLongitudeE6())/1000000))); 

mapItem.setMarker(marker); 
overlayArray.add(mapItem); 
if (anotherItemizedIconOverlay == null) { 
anotherItemizedIconOverlay = new ItemizedIconOverlay<OverlayItem>(
getApplicationContext(), overlayArray, null); 
mapView.getOverlays().add(anotherItemizedIconOverlay); 
mapView.invalidate(); 
} else { 
mapView.getOverlays().remove(anotherItemizedIconOverlay); 
mapView.invalidate(); 
anotherItemizedIconOverlay = new ItemizedIconOverlay<OverlayItem>(
getApplicationContext(), overlayArray, null); 
mapView.getOverlays().add(anotherItemizedIconOverlay); 
} 
return true; 
} 

};

來源

2013-10-18 Gaurav kumar

的可能重複[位置變化，並把標記上單擊OpenStreetMap的（http://stackoverflow.com/questions/19403420/location-change-and-put-marker-on-click-in-openstreetmap ） – scai

它也是我的代碼。它不工作 –

最後我解決了這個問題。這是我的解決方案。

@Override 
    public boolean onSingleTapConfirmed(MotionEvent e, MapView mapView) { 

     Projection proj = mapView.getProjection(); 
     p = (GeoPoint) proj.fromPixels((int) e.getX(), (int) e.getY()); 
     proj = mapView.getProjection(); 
     loc = (GeoPoint) proj.fromPixels((int) e.getX(), (int) e.getY()); 
     String longitude = Double 
     .toString(((double) loc.getLongitudeE6())/1000000); 
     String latitude = Double 
     .toString(((double) loc.getLatitudeE6())/1000000); 
     Toast toast = Toast.makeText(getApplicationContext(), 
     "Longitude: " 
     + longitude + " Latitude: " + latitude, Toast.LENGTH_SHORT); 
     toast.show(); 
     return true; 
    } 

private void addLocation(double lat, double lng) { 
    // ---Add a location marker--- 

    p = new GeoPoint((int) (lat * 1E6), (int) (lng * 1E6)); 

    Drawable marker = getResources().getDrawable(
      android.R.drawable.star_big_on); 

    int markerWidth = marker.getIntrinsicWidth(); 
    int markerHeight = marker.getIntrinsicHeight(); 

    marker.setBounds(0, markerHeight, markerWidth, 0); 

    ResourceProxy resourceProxy = new DefaultResourceProxyImpl(
      getApplicationContext()); 

    myItemizedOverlay = new MyItemizedOverlay(marker, resourceProxy); 

    List<Overlay> listOfOverlays = mapView.getOverlays(); 
    listOfOverlays.clear(); 
    listOfOverlays.add(myItemizedOverlay); 

    mapView.invalidate(); 
}

來源

2013-10-19 08:18:58

謝謝你也工作。 –

在openstreetmap上單擊繪製標記android

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