title: how to set marker at my current location and change camera position in Baidu Map (objective c)
body: <p>I configure Baidu map in my code using <code>pod 'BaiduMapKit</code>' and display map in view.
  how to set a marker at my current location in Baidu Map and change camera position also?</p>
  
  <p>// now I solve how to set marker but actually my camera location not move.</p>
  
  <pre><code>- (void)viewDidLoad {
             [super viewDidLoad];
             anotation = [[BMKPointAnnotation alloc]init];
             CLLocationCoordinate2D coor;
  
             coor.latitude  = 22.2593;
             coor.longitude  = 70.7777;
             anotation.coordinate = coor;
             anotation.title  = @"this is rajkot";
             [mapView addAnnotation:anotation];
             mapView.delegate = self;
  
       }
  </code></pre>