Using-Maps:MapKit 使用

使用地图 在地图上显示目标区域 步骤 0. 添加“MKMapViewDelegate”协议 class ViewController: UIViewController, MKMapViewDelegate {...} 步骤 1. 定义地图参数 // Step1. Define map parameters // - 1.1 Define position var latitude:CLLocationDegrees = 40.748712 var longitude:CLLocationDegrees = -73.985691 // - 1.2 Define zoom level: bigger means more zoom out var latDelta:CLLocationDegrees = 0.01 var lonDelta:CLLocation