Android arcgis 座標轉經緯度

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If you want to convert map point to lat/long you just need to follow this Point mapPoint = mMapView.toMapPoint(point.getX(), point.getY()); //Here point is your MotionEvent point SpatialReference spacRef = SpatialReference.create(4326); //4326 is for Geographic coordinate systems (GCSs) Point ltLn = (Point) GeometryEngine.project(mapPoint,mMapView.getSpatialReference(), spacRef ); //mMapView is your current mapview object ltLn.getY() will give latitude and ltLn.getX() will give longitude

這是esri.SpatialReference函數中的屬性，wkid即well-known ID（定義好的） ，4326代表地理座標系中的GCS_WGS_1984 ，這個可以在arcgis的幫助中查看