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POGetting all markers from database to map
 

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    <p>I have stored places in the database with their Longitude and Latitude, and i want to get the Latlngs for all the places and show them on Google Map v2. </p> <p>I tried to put a test marker in the OnCreate function, but it dose not work, maybe because i put it in a wrong place ? </p> <p>Here is my code: (the code works without the part of the add marker):</p> <pre><code>public class NearbyActivity extends FragmentActivity implements LocationListener,OnInfoWindowClickListener, GooglePlayServicesClient.ConnectionCallbacks, GooglePlayServicesClient.OnConnectionFailedListener{ private GoogleMap mMap; private LocationManager locationManager; private SupportMapFragment mapFragment; private GoogleMap map; private LocationClient mLocationClient; private final static int CONNECTION_FAILURE_RESOLUTION_REQUEST = 9000; // Define a DialogFragment that displays the error dialog public static class ErrorDialogFragment extends DialogFragment { // Global field to contain the error dialog private Dialog mDialog; // Default constructor. Sets the dialog field to null public ErrorDialogFragment() { super(); mDialog = null; } // Set the dialog to display public void setDialog(Dialog dialog) { mDialog = dialog; } // Return a Dialog to the DialogFragment. @Override public Dialog onCreateDialog(Bundle savedInstanceState) { return mDialog; } } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_nearby); mLocationClient = new LocationClient(this, this, this); mapFragment = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)); map = mapFragment.getMap(); map.setMyLocationEnabled(true); // This is working byt with fixed values not from database.. Marker melbourne = map.addMarker(new MarkerOptions() .position(new LatLng(26.2412591, 50.5961323)) .title("0000") .snippet("Manama Capital of Arab Tourism") .icon(BitmapDescriptorFactory.fromResource(R.drawable.palace))); onInfoWindowClick(melbourne); map.setOnInfoWindowClickListener(new OnInfoWindowClickListener() { @Override public void onInfoWindowClick(Marker marker) { Intent intent = new Intent(NearbyActivity.this,Description.class); intent.putExtra("id", "klkl"); startActivity(intent); } }); // end of add marker. } @Override protected void onStart() { super.onStart(); // Connect the client. if(isGooglePlayServicesAvailable()){ mLocationClient.connect(); } } /* * Called when the Activity is no longer visible. */ @Override protected void onStop() { // Disconnecting the client invalidates it. mLocationClient.disconnect(); super.onStop(); } /* * Handle results returned to the FragmentActivity * by Google Play services */ @Override protected void onActivityResult( int requestCode, int resultCode, Intent data) { // Decide what to do based on the original request code switch (requestCode) { case CONNECTION_FAILURE_RESOLUTION_REQUEST: /* * If the result code is Activity.RESULT_OK, try * to connect again */ switch (resultCode) { case Activity.RESULT_OK: mLocationClient.connect(); break; } } } private boolean isGooglePlayServicesAvailable() { // Check that Google Play services is available int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this); // If Google Play services is available if (ConnectionResult.SUCCESS == resultCode) { // In debug mode, log the status Log.d("Location Updates", "Google Play services is available."); return true; } else { // Get the error dialog from Google Play services Dialog errorDialog = GooglePlayServicesUtil.getErrorDialog( resultCode, this, CONNECTION_FAILURE_RESOLUTION_REQUEST); // If Google Play services can provide an error dialog if (errorDialog != null) { // Create a new DialogFragment for the error dialog ErrorDialogFragment errorFragment = new ErrorDialogFragment(); errorFragment.setDialog(errorDialog); errorFragment.show(getSupportFragmentManager(), "Location Updates"); } return false; } } /* * Called by Location Services when the request to connect the * client finishes successfully. At this point, you can * request the current location or start periodic updates */ @Override public void onConnected(Bundle dataBundle) { // Display the connection status Toast.makeText(this, "Connected", Toast.LENGTH_SHORT).show(); Location location = mLocationClient.getLastLocation(); LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude()); CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(latLng, 17); map.animateCamera(cameraUpdate); } /* * Called by Location Services if the connection to the * location client drops because of an error. */ @Override public void onDisconnected() { // Display the connection status Toast.makeText(this, "Disconnected. Please re-connect.", Toast.LENGTH_SHORT).show(); } /* * Called by Location Services if the attempt to * Location Services fails. */ @Override public void onConnectionFailed(ConnectionResult connectionResult) { /* * Google Play services can resolve some errors it detects. * If the error has a resolution, try sending an Intent to * start a Google Play services activity that can resolve * error. */ if (connectionResult.hasResolution()) { try { // Start an Activity that tries to resolve the error connectionResult.startResolutionForResult( this, CONNECTION_FAILURE_RESOLUTION_REQUEST); /* * Thrown if Google Play services canceled the original * PendingIntent */ } catch (IntentSender.SendIntentException e) { // Log the error e.printStackTrace(); } } else { Toast.makeText(getApplicationContext(), "Sorry. Location services not available to you", Toast.LENGTH_LONG).show(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.nearby, menu); return true; } @Override public void onLocationChanged(Location location) { // TODO Auto-generated method stub LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude()); CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(latLng, 15); mMap.animateCamera(cameraUpdate); locationManager.removeUpdates(this); } @Override public void onProviderDisabled(String provider) { // TODO Auto-generated method stub } @Override public void onProviderEnabled(String provider) { // TODO Auto-generated method stub } @Override public void onStatusChanged(String provider, int status, Bundle extras) { // TODO Auto-generated method stub } @Override public void onInfoWindowClick(Marker arg0) { // TODO Auto-generated method stub } } </code></pre>
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