ios百度地图的使用（普通定位、反地理编码）

#import <corelocation/corelocation.h> 使用到的头文件 要引入corelocation这个包
<cllocationmanagerdelegate>    使用的代理名称
//1.使用定位服务
 //设置app有访问定位服务的权限
 //在使用应用期间 / 始终(app在后台)
 //info.plist文件添加以下两条(或者其中一条):
 //nslocationwheninuseusagedescription 在使用应用期间
 //nslocationalwaysusagedescription 始终
 //2.locationmanager 对象管理相关的定位服务
 _manager = [[cllocationmanager alloc] init];
 //manager判断: 手机是否开启定位 / app是否有访问定位的权限
 //[cllocationmanager locationservicesenabled]; //手机是否开启定位
 //[cllocationmanager authorizationstatus]; //app访问定位的权限的状态
 if (![cllocationmanager locationservicesenabled] || [cllocationmanager authorizationstatus] != kclauthorizationstatusauthorizedwheninuse) {
  [_manager requestwheninuseauthorization]; //向用户请求访问定位服务的权限
 }
 _manager.delegate = self;
 _manager.desiredaccuracy = kcllocationaccuracybest;
 _manager.distancefilter = 1.0f;
 [_manager startupdatinglocation];
//定位代理经纬度回调
-(void)locationmanager:(cllocationmanager *)manager didupdatetolocation:(cllocation *)newlocation fromlocation:(cllocation *)oldlocation {
 [_manager stopupdatinglocation];
 clgeocoder * geocoder = [[clgeocoder alloc] init];
 [geocoder reversegeocodelocation:newlocation completionhandler:^(nsarray *placemarks, nserror *error) {
  for (clplacemark * placemark in placemarks) {
   nsdictionary *test = [placemark addressdictionary];
   // country(国家) state(城市) sublocality(区) name全称
   nslog(@"%@", [test objectforkey:@"name"]);
  }
 }];
}

_mapview = [[bmkmapview alloc]initwithframe:cgrectmake(0, 0,self.view.frame.size.width, self.view.frame.size.height)];//添加mapview
 [self.view addsubview:_mapview];
#pragma mark - 设置mapview属性
-(void)setmapviewproperty
{
 _mapview.maptype = bmkusertrackingmodefollowwithheading;
 _mapview.showsuserlocation = yes; //是否显示定位图层（即我的位置的小圆点）
 _mapview.zoomlevel = 16;//地图显示比例
 _mapview.rotateenabled = no; //设置是否可以旋转
  
 [self passlocationvalue];
}
#pragma mark -传入定位坐标 
//设置定位到得用户的位置，这里是简单的应用方法（必须打开程序时已经获取到地理位置坐标，为了解决地图定位时总是先显示*）
-(void)passlocationvalue
{
 bmkcoordinateregion viewregion = bmkcoordinateregionmake([userlocationmanager sharedinstance].clloction.coordinate, bmkcoordinatespanmake(0.02f,0.02f));
 bmkcoordinateregion adjustedregion = [_mapview regionthatfits:viewregion];
 [_mapview setregion:adjustedregion animated:yes];
  
}
#pragma mark -设置定位圆点属性
-(void)setuserimage
{
 //用户位置类
 bmklocationviewdisplayparam* param = [[bmklocationviewdisplayparam alloc] init];
 param.locationviewoffsety = 0;//偏移量
 param.locationviewoffsetx = 0;
 param.isaccuracycircleshow =no;//设置是否显示定位的那个精度圈
 param.isrotateanglevalid = no;
 [_mapview updatelocationviewwithparam:param];
}

**
 *地图区域即将改变时会调用此接口
 *@param mapview 地图view
 *@param animated 是否动画
 */
- (void)mapview:(bmkmapview *)mapview regionwillchangeanimated:(bool)animated
{
 //todo
}
 
/**
 *地图区域改变完成后会调用此接口
 *@param mapview 地图view
 *@param animated 是否动画
 */
- (void)mapview:(bmkmapview *)mapview regiondidchangeanimated:(bool)animated
{
 //todo
}
/**
 *地图状态改变完成后会调用此接口
 *@param mapview 地图view
 */
- (void)mapstatusdidchanged:(bmkmapview *)mapview
{
 //todo
}

#import <foundation/foundation.h>
#import "bmapkit.h"
@interface userlocationmanager : nsobject <bmkmapviewdelegate,bmklocationservicedelegate>
{
 cllocation *cllocation;
 bmkreversegeocodeoption *reversegeocodeoption;//逆地理编码
}
@property (strong,nonatomic) bmklocationservice *locservice;
//城市名
@property (strong,nonatomic) nsstring *cityname;
//用户纬度
@property (nonatomic,assign) double userlatitude;
//用户经度
@property (nonatomic,assign) double userlongitude;
//用户位置
@property (strong,nonatomic) cllocation *clloction;
//初始化单例
+ (userlocationmanager *)sharedinstance;
//初始化百度地图用户位置管理类
- (void)initbmkuserlocation;
//开始定位
-(void)startlocation;
//停止定位
-(void)stoplocation;
@end
#import "userlocationmanager.h"
@implementation userlocationmanager
+ (userlocationmanager *)sharedinstance
{
 static userlocationmanager *_instance = nil;
 @synchronized (self) {
  if (_instance == nil) {
   _instance = [[self alloc] init];
  }
 }
 return _instance;
}
-(id)init
{
 if (self == [super init])
 {
  [self initbmkuserlocation];
 }
 return self;
}
#pragma 初始化百度地图用户位置管理类
/**
 * 初始化百度地图用户位置管理类
 */
- (void)initbmkuserlocation
{
 _locservice = [[bmklocationservice alloc]init];
 _locservice.delegate = self;
 [self startlocation];
}
#pragma 打开定位服务
/**
 * 打开定位服务
 */
-(void)startlocation
{
 [_locservice startuserlocationservice];
}
#pragma 关闭定位服务
/**
 * 关闭定位服务
 */
-(void)stoplocation
{
 [_locservice stopuserlocationservice];
}
#pragma bmklocationservicedelegate
/**
 *用户位置更新后，会调用此函数
 *@param userlocation 新的用户位置
 */
- (void)didupdateuserlocation:(bmkuserlocation *)userlocation
{
  cllocation = userlocation.location;
 _clloction = cllocation;
 _userlatitude = cllocation.coordinate.latitude;
 _userlongitude = cllocation.coordinate.longitude;
 [self stoplocation];(如果需要实时定位不用停止定位服务)
}
/**
 *在停止定位后，会调用此函数
 */
- (void)didstoplocatinguser
{
；
}
/**
 *定位失败后，会调用此函数
 *@param error 错误号
 */
- (void)didfailtolocateuserwitherror:(nserror *)error
{
 [self stoplocation];
}