Get latitude and longitude based on zip using Geocoder class in IOS

Question

I got the current location based on Longitude and latitude values and then I also got Multiple places on google map using Annotation now I want get longitude and latitude values based on Zip code I don't know how to get Longitude and latitude values base on Zip code

Answer 1

this is the method for call google map api for geocoding, if u pass the Zipcode/Postal code, you get the result

-(void)ViewDidLoad
{ 

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"http://maps.google.com/maps/api/geocode/json?sensor=false&address=%@",yourzipcodetext/PostalcodeText.text]]];

[request setHTTPMethod:@"POST"];

NSError *err;
NSURLResponse *response;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
NSString *resSrt = [[NSString alloc]initWithData:responseData encoding:NSASCIIStringEncoding];

NSLog(@"got response==%@", resSrt);

NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableContainers error:nil];

NSString *lataddr=[[[[[dict objectForKey:@"results"] objectAtIndex:0]objectForKey:@"geometry"]objectForKey:@"location"]objectForKey:@"lat"];

NSString *longaddr=[[[[[dict objectForKey:@"results"] objectAtIndex:0]objectForKey:@"geometry"]objectForKey:@"location"]objectForKey:@"lng"];


NSLog(@"The resof latitude=%@", lataddr);

NSLog(@"The resof longitude=%@", longaddr);


}

Chioce-2

CLGeocoder *geoCoder = [[CLGeocoder alloc] init];
    [geoCoder geocodeAddressString:@"ZIP CODE HERE" completionHandler:^(NSArray *placemarks, NSError *error) {
        CLPlacemark *placemark = [placemarks objectAtIndex:0];
        CLLocation *location = placemark.location;
        CLLocationCoordinate2D coordinate = location.coordinate;
        NSLog(@"Latitude %f", coordinate.latitude);
        NSLog(@"Longitude %f", coordinate.longitude);
    }];

Answer 2

It will be as simple as something like this:

CLGeocoder *geoCoder = [[CLGeocoder alloc] init];
    [geoCoder geocodeAddressString:@"ZIP CODE HERE" completionHandler:^(NSArray *placemarks, NSError *error) {
        CLPlacemark *placemark = [placemarks objectAtIndex:0];
        CLLocation *location = placemark.location;
        CLLocationCoordinate2D coordinate = location.coordinate;
        NSLog(@"Latitude %f", coordinate.latitude);
        NSLog(@"Longitude %f", coordinate.longitude);
    }];

Answer 3

Apple released good documentation on forward geocoding that should help you.