IOS 城市定位详解及简单实例

_locationManger = [[CLLocationManager alloc] init]; _locationManger.delegate = self; [_locationManger requestAlwaysAuthorization];//iOS8需要加上，不然定位失败 _locationManger.desiredAccuracy = kCLLocationAccuracyBest;  //最精确模式 _locationManger.distanceFilter = 100.0f; //至少10米才请求一次数据 [_locationManger startUpdatingLocation]; //开始定位 

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error{   NSLog(@"定位失败");   [_locationManger stopUpdatingLocation];//关闭定位 }  - (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{ NSLog(@"定位成功"); [_locationManger stopUpdatingLocation];//关闭定位  CLLocation *newLocation = locations[0]; NSLog(@"%@",[NSString stringWithFormat:@"经度:%3.5f/n纬度:%3.5f",newLocation.coordinate.latitude, newLocation.coordinate.longitude]);  // 保存 设备 的当前语言 NSMutableArray *userDefaultLanguages = [[NSUserDefaults standardUserDefaults] objectForKey:@"AppleLanguages"]; // 强制 成 简体中文 [[NSUserDefaults standardUserDefaults] setObject:[NSArray arrayWithObjects:@"zh-hans", nil nil] forKey:@"AppleLanguages"]; 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)     NSLog(@"%@", [test objectForKey:@"State"]);      // 当前设备 在强制将城市改成 简体中文 后再还原之前的语言     [[NSUserDefaults standardUserDefaults] setObject:userDefaultLanguages forKey:@"AppleLanguages"];   } }];   }