我正在尝试通过以下代码使用 CLLocationManager
获取当前城市和国家/地区 -
#pragma mark - Core Location Delegate Methods
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
CLGeocoder *reverseGeocoder = [[CLGeocoder alloc] init];
[reverseGeocoder reverseGeocodeLocation:newLocation completionHandler:^(NSArray *placemarks, NSError *error)
{
NSLog(@"reverseGeocodeLocation:completionHandler: Completion Handler called!");
if (error){
NSLog(@"Geocode failed with error: %@", error);
return;
}
NSLog(@"Received placemarks: %@", placemarks);
CLPlacemark *myPlacemark = [placemarks objectAtIndex:0];
NSString *countryCode = myPlacemark.ISOcountryCode;
NSString *countryName = myPlacemark.country;
NSString *city1 = myPlacemark.subLocality;
NSString *city2 = myPlacemark.locality;
NSLog(@"My country code: %@, countryName: %@, city1: %@, city2: %@", countryCode, countryName, city1, city2);
}];
}
- (void)locationManager:(CLLocationManager *)manager didUpdateHeading:(CLHeading *)newHeading
{
CLLocationDirection th=[newHeading trueHeading];
NSLog(@"True Heading value is=%f",th);
CLLocationDirection magnetic=[newHeading magneticHeading];
NSLog(@"Magnetic Heading value is=%f",magnetic);
}
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
NSString *errorType = (error.code == kCLErrorDenied) ? NSLocalizedString(@"access_denied", @"") : NSLocalizedString(@"unknown_error", @"");
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle:NSLocalizedString(@"error_getting_location", @"")
message:errorType
delegate:nil
cancelButtonTitle:NSLocalizedString(@"ok", @"")
otherButtonTitles:nil];
[alert show];
}
它总是给出结果 -
My country code: IN, countryName: India, city1: (null), city2: (null)
我不知道这可能是什么问题。有没有人遇到过无法使用 CLLocationManager
最佳答案
已编辑:
- (void) getReverseGeocode
{
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
if(currentLatLong.count > 0)
{
CLLocationCoordinate2D myCoOrdinate;
myCoOrdinate.latitude = LatValue;
myCoOrdinate.longitude = LangValue;
CLLocation *location = [[CLLocation alloc] initWithLatitude:myCoOrdinate.latitude longitude:myCoOrdinate.longitude];
[geocoder reverseGeocodeLocation:location completionHandler:^(NSArray *placemarks, NSError *error)
{
if (error)
{
NSLog(@"failed with error: %@", error);
return;
}
if(placemarks.count > 0)
{
NSString *MyAddress = @"";
NSString *city = @"";
if([placemark.addressDictionary objectForKey:@"FormattedAddressLines"] != NULL)
MyAddress = [[placemark.addressDictionary objectForKey:@"FormattedAddressLines"] componentsJoinedByString:@", "];
else
MyAddress = @"Address Not founded";
if([placemark.addressDictionary objectForKey:@"SubAdministrativeArea"] != NULL)
city = [placemark.addressDictionary objectForKey:@"SubAdministrativeArea"];
else if([placemark.addressDictionary objectForKey:@"City"] != NULL)
city = [placemark.addressDictionary objectForKey:@"City"];
else if([placemark.addressDictionary objectForKey:@"Country"] != NULL)
city = [placemark.addressDictionary objectForKey:@"Country"];
else
city = @"City Not founded";
NSLog(@"%@",city);
NSLog(@"%@", MyAddress);
}
}];
}
}
关于iphone - CLLocationManager 没有获取城市名称,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/15270527/