百度地图基本定位

//
// ViewController.m
// SwalleMap
//
// Created by dev on 16/6/1.
// Copyright © 2016年 SWALLE. All rights reserved.
//

import "ViewController.h"

import "UIView+Extension.h"

import //引入base相关所有的头文件

import //引入地图功能所有的头文件

import //引入检索功能所有的头文件

import //引入云检索功能所有的头文件

import //引入定位功能所有的头文件

import //引入计算工具所有的头文件

import //引入周边雷达功能所有的头文件

import //只引入所需的单个头文件

@interface ViewController ()
{
BMKPinAnnotationView *newAnnotation;

BMKGeoCodeSearch *_geoCodeSearch;  
  
BMKReverseGeoCodeOption *_reverseGeoCodeOption;  

}
@property (nonatomic, strong) BMKLocationService *localService;
@property (weak, nonatomic) UIButton *mapPin;
@end

@implementation ViewController
-(BMKLocationService *)localService{
if (!_localService) {
_localService = [[BMKLocationService alloc] init];
[_localService setDesiredAccuracy:kCLLocationAccuracyBest];//设置定位精度
}
return _localService;
}

• (void)viewDidLoad {
  [super viewDidLoad];

  self.mapView = [[BMKMapView alloc] initWithFrame:self.view.frame];
  self.mapPin = [UIButton buttonWithType:UIButtonTypeSystem];//大头针
  self.mapPin.width = 40;
  self.mapPin.height = 80;
  self.mapPin.center = self.mapView.center;
  [self.mapPin setBackgroundImage:[UIImage imageNamed:@"serach_Map"] forState:UIControlStateNormal];
  self.mapPin.backgroundColor = [UIColor greenColor];
  [self.mapView addSubview:self.mapPin];
  [self.view addSubview:self.mapView];
  self.mapView.zoomLevel=17;//比例尺
  [self.mapView setMapType:BMKMapTypeStandard];//地图类型
  self.mapView.delegate = self;
  self.mapView.userTrackingMode = BMKUserTrackingModeFollow;//设置定位的状态
  self.mapView.showsUserLocation = YES;//显示定位图层
  self.localService.delegate = self;
  [self.localService startUserLocationService];//用户开始定位

  //self.mapView.showsUserLocation = NO;//先关闭显示的定位图层
  self.mapView.userTrackingMode = BMKUserTrackingModeFollow;//设置定位的状态
  self.mapView.showsUserLocation = YES;//显示定位图层
  [self.mapView bringSubviewToFront:self.mapPin];

}

pragma mark -- BMKLocationServiceDelegate

• (void)didUpdateBMKUserLocation:(BMKUserLocation *)userLocation
  {
  self.mapView.showsUserLocation = YES;//显示定位图层
  //设置地图中心为用户经纬度
  [self.mapView updateLocationData:userLocation];

//    _mapView.centerCoordinate = userLocation.location.coordinate;  
BMKCoordinateRegion region ;//表示范围的结构体  
region.center = self.mapView.centerCoordinate;//中心点  
region.span.latitudeDelta = 0.004;//经度范围（设置为0.1表示显示范围为0.2的纬度范围）  
region.span.longitudeDelta = 0.004;//纬度范围  
[self.mapView setRegion:region animated:YES];  

}

pragma mark -- BMKMapViewDelegate

• (void)mapView:(BMKMapView *)mapView regionDidChangeAnimated:(BOOL)animated
  {
  //屏幕坐标转地图经纬度
  CLLocationCoordinate2D MapCoordinate=[_mapView convertPoint:_mapPin.center toCoordinateFromView:_mapView];
  NSLog(@"latitude == %f longitude == %f",MapCoordinate.latitude,MapCoordinate.longitude);
  if (_geoCodeSearch==nil) {
  //初始化地理编码类
  _geoCodeSearch = [[BMKGeoCodeSearch alloc]init];
  _geoCodeSearch.delegate = self;

  }
  if (_reverseGeoCodeOption==nil) {

    //初始化反地理编码类  
    _reverseGeoCodeOption= [[BMKReverseGeoCodeOption alloc] init];  
  

  }

  //需要逆地理编码的坐标位置
  _reverseGeoCodeOption.reverseGeoPoint =MapCoordinate;
  [_geoCodeSearch reverseGeoCode:_reverseGeoCodeOption];

  //创建地理编码对象
  CLGeocoder *geocoder=[[CLGeocoder alloc]init];
  //创建位置
  CLLocation *location=[[CLLocation alloc]initWithLatitude:MapCoordinate.latitude longitude:MapCoordinate.longitude];

  //反地理编码
  [geocoder reverseGeocodeLocation:location completionHandler:^(NSArray * _Nullable placemarks, NSError * _Nullable error) {
  //判断是否有错误或者placemarks是否为空
  if (error !=nil || placemarks.count==0) {
  NSLog(@"%@",error);
  return ;
  }
  for (CLPlacemark *placemark in placemarks) {
  //赋值详细地址
  NSLog(@"%@",placemark.name);
  }
  }];
  }

pragma mark -- BMKGeoCodeSearchDelegate

//周边信息

• (void)onGetReverseGeoCodeResult:(BMKGeoCodeSearch *)searcher result:(BMKReverseGeoCodeResult *)result errorCode:(BMKSearchErrorCode)error{
  for (BMKPoiInfo *poi in result.poiList) {
  NSLog(@"%@",poi.name);//周边建筑名
  NSLog(@"%d",poi.epoitype);

  }
  }