iOS开发百度地图的时候让多个大头针显示全的代码如下:
BMKPointAnnotation* annotation = [[BMKPointAnnotation alloc]init];
CLLocationCoordinate2D coor;
coor.latitude = 39.915;
coor.longitude = 116.404;
annotation.coordinate = coor;
annotation.title = @"北京";
[_mapView addAnnotation:annotation];