title: Google Map does not appear iOS sdk?
body: <p>I Use Google Map iOS SDK in my app but I have this issue :</p>
  
  <p>When I used google example for iOS like the following code it work fine but it will loaded in full screen mode because it take the main <code>view</code> in the <code>ViewController</code>.</p>
  
  <pre><code>GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.868
                                                          longitude:151.2086
                                                               zoom:6];
  GMSMapView *mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
  
  GMSMarker *marker = [[GMSMarker alloc] init];
  
  marker.position = camera.target;
  marker.snippet = @"Hello World";
  marker.map = mapView;
  self.view = mapView;
  </code></pre>
  
  <p>But I need it to be in subView , u know because toolbar or top bar whatever .</p>
  
  <p>I add subView to <code>myViewController</code> and make an <code>IBOUtle</code> then I link the mapView to it like this :</p>
  
  <pre><code>GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.868
                                                          longitude:151.2086
                                                               zoom:6];
  GMSMapView *mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
  
  GMSMarker *marker = [[GMSMarker alloc] init];
  
  marker.position = camera.target;
  marker.snippet = @"Hello World";
  marker.map = mapView;
  mySubView = mapView;
  </code></pre>
  
  <p>but the View will be white/empty no map loaded/or add as subView, so I tried the following , change the subView type from <code>UIView</code> to <code>GMSMapView</code> and this make the map appear and loaded.</p>
  
  <p>The strange problem that I can't do anything with this Map like the <code>GMSMarker</code> does not appear , or <code>GMSCameraPosition</code> does not show your the correct position/not work.</p>