当我们知道纬度和经度时，如何将当前位置名称作为字符串 [英] How to get the current Location name as a string , when we know the latitude and longitude

问题描述

可能重复：

如何检索用户当前的城市名称？

使用以下方法我获得当前位置的纬度和经度

using the following methods i am getting latitude and longitude of the current position

- (void)viewDidLoad {
  [super viewDidLoad];
  locationManager = [[CLLocationManager alloc] init];
  locationManager.delegate = self;
  locationManager.distanceFilter = kCLDistanceFilterNone; // whenever we move
  locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters; // 100 m
  [locationManager startUpdatingLocation];
}

- (void)locationManager:(CLLocationManager *)manager
    didUpdateToLocation:(CLLocation *)newLocation
           fromLocation:(CLLocation *)oldLocation
{
  int degrees = newLocation.coordinate.latitude;
  double decimal = fabs(newLocation.coordinate.latitude - degrees);
  int minutes = decimal * 60;
  double seconds = decimal * 3600 - minutes * 60;
  NSString *lat = [NSString stringWithFormat:@"%d° %d' %1.4f\"", 
                   degrees, minutes, seconds];
  latLabel.text = lat;
  degrees = newLocation.coordinate.longitude;
  decimal = fabs(newLocation.coordinate.longitude - degrees);
  minutes = decimal * 60;
  seconds = decimal * 3600 - minutes * 60;
  NSString *longt = [NSString stringWithFormat:@"%d° %d' %1.4f\"", 
                     degrees, minutes, seconds];
  longLabel.text = longt;
}

现在我需要将当前位置名称作为字符串...但是在地图上没有要求，我怎么能这样做，给我一些建议pls ,,, thanx提前

now i need to get the current location name as a string... but not required on a map, how can i do this, give me some suggestion pls,,,thanx in advance

推荐答案

使用这个常用函数，只需将纬度和经度作为此函数中的参数传递。

Use this common function and just pass latitude and longitude as argument in this function.

-(NSString *)getAddressFromLatLon:(double)pdblLatitude withLongitude:(double)pdblLongitude
{
    NSString *urlString = [NSString stringWithFormat:kGeoCodingString,pdblLatitude, pdblLongitude];
    NSError* error;
    NSString *locationString = [NSString stringWithContentsOfURL:[NSURL URLWithString:urlString] encoding:NSASCIIStringEncoding error:&error];
    locationString = [locationString stringByReplacingOccurrencesOfString:@"\"" withString:@""];
    return [locationString substringFromIndex:6];
}

并声明此

#define kGeoCodingString @"http://maps.google.com/maps/geo?q=%f,%f&output=csv"

此函数将返回您经过的纬度和经度的地址。

This function will return address of the latitude and longitude you are passing.

希望它有所帮助。

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