高德地图---显示、定位、逆编码

[AMapServices sharedServices].apiKey = @"80985a4a5ea3794dd8155f9a4973526b";

pragma mark - 创建地图

-(void)createMap{

///初始化地图
self.mapView = [[MAMapView alloc] initWithFrame:CGRectMake(0, self.topView.bottom, SCREENWIDTH, SCREENHEIGHT - self.topView.bottom)];
self.mapView.showsCompass = NO; // 隐藏指南针
self.mapView.showsScale = NO; // 隐藏比例尺
self.mapView.language = MAMapLanguageZhCN;
self.mapView.mapType = MAMapTypeStandard;
self.mapView.zoomLevel = 17;
self.mapView.delegate = self;
///如果您需要进入地图就显示定位小蓝点，则需要下面两行代码
self.mapView.showsUserLocation = YES;
self.mapView.userTrackingMode = MKUserTrackingModeFollow;
///把地图添加至view
[self.view addSubview:self.mapView];

}
// MARK: - 开始定位

• (void)startLocation {

  self.locationManager = [[AMapLocationManager alloc] init];
  self.locationManager.delegate = self;
  self.locationManager.distanceFilter = kCLDistanceFilterNone;
  //要求CLLocationManager对象的返回结果尽可能的精准
  [self.locationManager setDesiredAccuracy:kCLLocationAccuracyBest];
  [self.locationManager setPausesLocationUpdatesAutomatically:NO];

  [self.locationManager setAllowsBackgroundLocationUpdates:YES];
  //持续定位返回逆地理编码信息
  [self.locationManager setLocatingWithReGeocode:YES];
  [self.locationManager startUpdatingLocation];

  self.search = [[AMapSearchAPI alloc] init];
  self.search.delegate = self;
  }
  // MARK: - 接收位置更新

• (void)amapLocationManager:(AMapLocationManager *)manager didUpdateLocation:(CLLocation *)location
  {
  NSLog(@"location:{纬度:%f; 经度:%f; accuracy:%f}", location.coordinate.latitude, location.coordinate.longitude, location.horizontalAccuracy);

  NSUserDefaults *userStr = [NSUserDefaults standardUserDefaults];
  [userStr setFloat:location.coordinate.longitude forKey:@"lngLat.lng"];
  [userStr setFloat:location.coordinate.latitude forKey:@"lngLat.lat"];
  [userStr synchronize];

  //反编码
  AMapReGeocodeSearchRequest regeo = [[AMapReGeocodeSearchRequest alloc] init];
  regeo.location = [AMapGeoPoint locationWithLatitude:location.coordinate.latitude longitude:location.coordinate.longitude];
  NSLog(@"%f--%f",location.coordinate.latitude,location.coordinate.longitude);
  regeo.requireExtension = YES;
  //发起逆地理编码
  [self.search AMapReGoecodeSearch:regeo];
  }
  // MARK: - 逆编码
  / 逆地理编码回调. */

• (void)onReGeocodeSearchDone:(AMapReGeocodeSearchRequest *)request response:(AMapReGeocodeSearchResponse *)response
  {
  if (response.regeocode != nil)
  {
  //解析response获取地址描述
  NSLog(@"逆编码:%@",response.regeocode.addressComponent.township);
  self.topLabel.text = response.regeocode.addressComponent.township;
  NSUserDefaults *userStr = [NSUserDefaults standardUserDefaults];
  [userStr setObject:response.regeocode.addressComponent.township forKey:@"pointName"];
  [userStr synchronize];
  }else{
  self.topLabel.text = @"暂无热点信息";
  }
  [self.locationManager stopUpdatingLocation];
  }

• (void)AMapSearchRequest:(id)request didFailWithError:(NSError *)error{

  NSLog(@"error:%@",error);
  }