iOS地图开发3-原生封装的调用(swift)

//设置地图类型
appMapView.mapType = MKMapType.Standard;
//是否显示自己位置，设置true会一直定位
appMapView.showsUserLocation = false;
//是否允许缩放
appMapView.zoomEnabled = true;
//设置中心点
var pos:CLLocationCoordinate2D = CLLocationCoordinate2D(latitude: 34.8214611335501, longitude: 113.669539617823);
var viewRegion = MKCoordinateRegionMakeWithDistance(pos,500, 500);//以pos为中心，显示1000米
appMapView.region = appMapView.regionThatFits(viewRegion);

var viewRegion = MKCoordinateRegionMakeWithDistance(gcj,500, 500);//以pos为中心，显示2000米
appMapView.setRegion(appMapView.regionThatFits(viewRegion), animated: false);

var point = MKPointAnnotation();
point.coordinate = gcj;
point.title = name as String;
self.appMapView.addAnnotation(point);