Get latitude and longitude from a full address (street, city, etc.) input by the user

you can get latitude and longitude from a full address (street, city, etc.) input by the user

- (CLLocationCoordinate2D) geoCodeUsingAddress:(NSString *)address

{

    double latitude = 0, longitude = 0;

    NSString *esc_addr =  [address stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

    NSString *req = [NSString stringWithFormat:@"http://maps.google.com/maps/api/geocode/json?sensor=false&address=%@", esc_addr];

    NSString *result = [NSString stringWithContentsOfURL:[NSURL URLWithString:req] encoding:NSUTF8StringEncoding error:NULL];

    if (result) {

        NSScanner *scanner = [NSScanner scannerWithString:result];

        if ([scanner scanUpToString:@"\"lat\" :" intoString:nil] && [scanner scanString:@"\"lat\" :" intoString:nil]) {

            [scanner scanDouble:&latitude];

            if ([scanner scanUpToString:@"\"lng\" :" intoString:nil] && [scanner scanString:@"\"lng\" :" intoString:nil]) {

                [scanner scanDouble:&longitude];

            }

        }

    }

    CLLocationCoordinate2D center;

    center.latitude = latitude;

    center.longitude = longitude;

    return center;

}