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POAndroid GroundOverlay sets incorrect position
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  1. POAndroid GroundOverlay sets incorrect position
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    copied!<p>I try to make a location app based on Android Maps API v2. I add marker for my location point and a GroundOverlay circle for location accuracy. But GroundOverlay setPosition function sets slightly different. I can't find why.</p> <pre><code> package com.example.locator; import com.google.android.gms.maps.CameraUpdateFactory; import com.google.android.gms.maps.GoogleMap; import com.google.android.gms.maps.SupportMapFragment; import com.google.android.gms.maps.model.BitmapDescriptorFactory; import com.google.android.gms.maps.model.GroundOverlay; import com.google.android.gms.maps.model.GroundOverlayOptions; import com.google.android.gms.maps.model.LatLng; import com.google.android.gms.maps.model.Marker; import com.google.android.gms.maps.model.MarkerOptions; import android.location.Criteria; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Bundle; import android.content.Context; import android.support.v4.app.FragmentActivity; import android.view.Menu; public class MainActivity extends FragmentActivity implements LocationListener { GoogleMap mMap; Location lastLocation = null; private LocationManager locationManager; private String provider; Marker curLoc = null; GroundOverlay curLocCircle = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap(); mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(22.375675950685434, 29.83346939086914), 13)); locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); Criteria criteria = new Criteria(); provider = locationManager.getBestProvider(criteria, false); Location location = locationManager.getLastKnownLocation(provider); if (location != null) { onLocationChanged(location); } else { //empty } locationManager.requestLocationUpdates(provider, 400, 1, this); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_main, menu); return true; } public void onLocationChanged(Location location) { if (location != null) { if (null != curLoc) { curLoc.remove(); } if (null != curLocCircle) { curLocCircle.remove(); } LatLng loc = new LatLng(location.getLatitude(),location.getLongitude()); curLoc = mMap.addMarker(new MarkerOptions() .position(loc) .title("My location") .icon(BitmapDescriptorFactory.fromResource(R.drawable.location32))); float accuracy = location.getAccuracy(); curLocCircle = mMap.addGroundOverlay(new GroundOverlayOptions() .image(BitmapDescriptorFactory .fromResource(R.drawable.location_circle)) .position(loc, accuracy) .transparency(0) ); curLocCircle.setPosition(loc); mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(loc, 13)); } } public void onProviderDisabled(String provider) { // TODO Auto-generated method stub } public void onProviderEnabled(String provider) { // TODO Auto-generated method stub } public void onStatusChanged(String provider, int status, Bundle extras) { // TODO Auto-generated method stub } } </code></pre> <p>When I pause app in debugger on line</p> <pre><code>mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(loc, 13)); </code></pre> <p>watches shows this data:</p> <pre><code>curLocCircle.getPosition() lat/lng: (22.397815012772206,29.954818561673164) location.getLatitude() 22.397815 location.getLongitude() 29.9548184 loc lat/lng: (22.397815,29.9548184) </code></pre> <p>curLocCircle.getPosition() somehow shows incorrect location write after setPosition(loc); Please help me with that.</p>
 

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