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#import <CoreLocation/CoreLocation.h>//头文件 #define PATH @"http://api.map.baidu.com/geocoder?output=json&location=%f,%f&key=dc40f705157725fc98f1fee6a15b6e60" @interface RootViewController ()<CLLocationManagerDelegate> { //lbs 定位管理 CLLocationManager *_manager; } @property (nonatomic,strong)CLLocationManager *manager; @end @implementation RootViewController - (void)viewDidLoad { [super viewDidLoad]; self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"开始定位" style:UIBarButtonItemStylePlain target:self action:@selector(begineLocation)]; self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"停止定位" style:UIBarButtonItemStylePlain target:self action:@selector(endLocation)]; //创建管理器 [self initLocationManager]; } /* kCLLocationAccuracyBestForNavigation //导航时候用的精度 kCLLocationAccuracyBest;//比较高的精度 kCLLocationAccuracyNearestTenMeters; 10m内 kCLLocationAccuracyHundredMeters;100m kCLLocationAccuracyKilometer;1000m kCLLocationAccuracyThreeKilometers; 3000m */ - (void)initLocationManager { if (!self.manager) { //实例化一个管理对象 self.manager = [[CLLocationManager alloc] init]; //设置精度 精度越高越耗电 self.manager.desiredAccuracy = kCLLocationAccuracyBestForNavigation; //精度大小 1m self.manager.distanceFilter = 1; /* iOS之后 需要设置配置文件 1.在info.plist中添加 Privacy - Location Usage Description , NSLocationAlwaysUsageDescription 2.在代码中 [_manager requestAlwaysAuthorization]; //ios8特有，申请用户授权使用地理位置信息 */ CGFloat version = [[[UIDevice currentDevice] systemVersion] floatValue]; //判断版本 if (version >= 8.0) { //申请用户授权使用地理位置信息 [self.manager requestAlwaysAuthorization]; } //如果要 获取定位的位置 那么需要设置代理 self.manager.delegate = self; } } - (void)begineLocation { //是否支持定位服务 if ([CLLocationManager locationServicesEnabled]) { //开始定位 [self.manager startUpdatingLocation]; }else{ NSLog(@"没有gps"); } } //停止定位 - (void)endLocation { [self.manager stopUpdatingLocation]; } #pragma mark - CLLocationManagerDelegate协议 //当定位开始时 位置发生改变的时候 会一直调用 //会把定位的位置 放入 locations数组中 //这个数组实际上只有一个元素 - (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations { NSLog(@"定位位置"); if (locations.count) { //数组中只有一个元素 CLLocation *location = [locations lastObject]; //CLLocationCoordinate2D是一个结构体 内部存放的是经纬度 CLLocationCoordinate2D coordinate = location.coordinate; NSLog(@"longitude:%f",coordinate.longitude); NSLog(@"latitude:%f",coordinate.latitude); #if 1 //官方自带的地理反编码 CLGeocoder *geoCoder = [[CLGeocoder alloc] init]; //地理逆向编码 地理反编码 （把经纬度转化为真正的地址位置） [geoCoder reverseGeocodeLocation:location completionHandler:^(NSArray *placemarks, NSError *error) { //回调这个block //解析好之后会放在 placemarks 数组中(实际上就一个元素) for (CLPlacemark *mark in placemarks) { NSLog(@"name->%@",mark.name); NSLog(@"country:%@",mark.country); for (NSString *key in mark.addressDictionary) { NSLog(@"%@",mark.addressDictionary[key]); } } }]; #else //异步下载数据 用百度的地理反编码 dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ NSString *url = [NSString stringWithFormat:PATH,34.77274892, 113.67591140]; NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:url]]; //下载完成 NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil]; NSDictionary *result = dict[@"result"]; NSLog(@"addr:%@",result[@"formatted_address"]); }); #endif } } - (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error { NSLog(@"定位失败"); } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. }转载地址：http://tcsni.baihongyu.com/