swift - 3D 视图，截图，关键字搜索

 

 

1.xib 上的 3D效果 按钮

 

2. 

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import UIKit //1.导入框架 import MapKit   class ViewController: UIViewController {       @IBOutlet weak var mapView: MKMapView!           override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {         //逆推第三部         let center = mapView.centerCoordinate                             /*          *  lookingAtCenter:可是中心          *  fromEyeCoordinate：眼睛看到的坐标，从左还是从右边看          *  eyeAltitude：眼睛高度， 海拔高度          */         //逆推第二部         let camerea = MKMapCamera(lookingAtCenter: center, fromEyeCoordinate: CLLocationCoordinate2D(latitude: center.latitude + 0.1, longitude: center.longitude), eyeAltitude: 150)                   //逆推第一步         mapView.setCamera(camerea, animated: true)     }   }

　　

2. 截图

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// MARK: - 截图 extension ViewController{     func snap(){                   /// 限制地图         let option  = MKMapSnapshotter.Options()                   /// 截图区域         option.region = mapView.region                   /// 截图的地图类型         option.mapType = MKMapType.satellite             /// 输入图片大小         option.size = CGSize(width: 1000, height: 1000)                   /// 创建截图对象         let snapShoter = MKMapSnapshotter(options: option)                   //开始截图         snapShoter.start { (shot, err) in             if err == nil{                 let img = shot?.image                 let data = img?.pngData() as NSData?                 data?.write(toFile: "/Users/apple/Desktop/test.png", atomically: true)             }else{                 print("error")             }         }     } }

　　

3. 关键字搜索

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// MARK: - 本地搜索 extension ViewController{     func localSearch(){                   /// 创建一个请求         let request : MKLocalSearch.Request = MKLocalSearch.Request()                   /// 设置搜索关键字         request.naturalLanguageQuery = "小吃"                   /// 设置检索的区域范围         request.region = mapView.region                   /// 创建搜索对象         let search = MKLocalSearch(request: request)                   /// 搜索对象：注意 默认结果最多10个         search.start { (response, err) in             if err == nil {                 // 响应对象 MKLocalSearchResponse                 //  里面存储着检索出来的"地图项"                 // 每个地图项 中 有包含位置信息, 商家信息等                 let items = response!.mapItems                 for item in items {                     if let name = item.name{                         print(name)                     }                 }             }         }     } }