title: How to find location in database from my current location?
body: <p>So now i have Current location with radius 1000 meters, so i want all location from database within a radius 1000 meter from my current location will be display.</p>
  
  <pre><code>geoFire.setLocation("You", new GeoLocation(latitude, longtitude),
                                  new GeoFire.CompletionListener() {
                                      @Override
                                      public void onComplete(String key, DatabaseError error) {
                                          //Add Marker
                                          if(mCurrent != null)
                                              mCurrent.remove(); // Remove old marker
                                          mCurrent = mMap.addMarker(new MarkerOptions()
                                                  .position(new LatLng(latitude,longtitude))
                                                  .title("You"));
  
                                          radius= new LatLng(latitude,longtitude);
                                          mMap.addCircle(new CircleOptions()
                                                  .center(radius)
                                                  .radius(1000) // in Metters
                                                  .strokeColor(Color.BLUE)
                                                  .fillColor(0x220000FF)
                                                  .strokeWidth(5.0f)
                                          );
  </code></pre>