     //用户位置更新后，会调用此函数
     func didUpdateBMKUserLocation(userLocation: BMKUserLocation!) {
         _mapView!.updateLocationData(userLocation)
-        let viewRegion = BMKCoordinateRegionMake(userLocation.location.coordinate, BMKCoordinateSpan(latitudeDelta: 0.2,longitudeDelta: 0.2))
-        let adjustedRegion = _mapView?.regionThatFits(viewRegion)
-        
-        _mapView?.setRegion(adjustedRegion!, animated: true)
         print("目前位置：\(userLocation.location.coordinate.longitude), \(userLocation.location.coordinate.latitude)")
     }
     

import UIKit
import SwiftyJSON

class ViewController: UIViewController, BMKMapViewDelegate, BMKOfflineMapDelegate, BMKLocationServiceDelegate {
    
    var _mapView: BMKMapView?
    var pointAnnotation: BMKPointAnnotation!

    func followLocation() {
        //进入普通定位
        _mapView!.showsUserLocation = false
        _mapView!.userTrackingMode = locationModel["None"]!
        _mapView!.showsUserLocation = true
        _mapView!.scrollEnabled = true  //允許用户移动地图
        _mapView!.updateLocationData(userLocation)
