gistfile1.txt

URL in XML Link:
https://pubads.g.doubleclick.net/aclk?sa=L&ai=BPa7tLswXVqKQNJSfbv70ubgF9-CGpQcAAAAQASCPsd4lOABY97-wp4gCYJn-noa4IboBCzYyNHgzNTJfeG1syAEF2gEFaHR0cDqpAoumiCKaH5c-wAIC4AIA6gIULzEzMTMwMjQwNy9Vem1hbl9Ea3n4AvTRHpADhAeYA4QHqAMB0ASQTuAEAZAGAaAGI9gHAQ&num=0&cid=5GgCKLauz-kthEz8VwyzNqLz&sig=AOD64_3AsZ-FYmOIQbDXfzHieZUN2g4eEQ&client=ca-pub-3069068742246799&adurl=http://dkykartal.com/%3Futm_source%3DUzmanTV%26utm_medium%3DVideo_PreRoll%26utm_content%3DDKY_Kartal%26utm_campaign%3DDKY_Kartal_IBillBoard

Encoded uRL
https://pubads.g.doubleclick.net/aclk?sa=L%26ai=B7PT5ONYXVvGdC5HDb82luKAE9-CGpQcAAAAQASCPsd4lOABY97-wp4gCYJn-noa4IboBCzYyNHgzNTJfeG1syAEF2gEFaHR0cDqpAqVytYPcF5c-wAIC4AIA6gIULzEzMTMwMjQwNy9Vem1hbl9Ea3n4AvTRHpADhAeYA4QHqAMB0ASQTuAEAZAGAaAGI9gHAQ%26num=0%26cid=5GhVACL-85Q1oxtecsteBPSK%26sig=AOD64_0raH1tG2PfLKN7Glah6BlHJ6yzsw%26client=ca-pub-3069068742246799%26adurl=http://dkykartal.com/?utm_source=UzmanTV%26utm_medium=Video_PreRoll%26utm_content=DKY_Kartal%26utm_campaign=DKY_Kartal_IBillBoard

Decoded URL:
https://pubads.g.doubleclick.net/aclk?sa=L&ai=BPa7tLswXVqKQNJSfbv70ubgF9-CGpQcAAAAQASCPsd4lOABY97-wp4gCYJn-noa4IboBCzYyNHgzNTJfeG1syAEF2gEFaHR0cDqpAoumiCKaH5c-wAIC4AIA6gIULzEzMTMwMjQwNy9Vem1hbl9Ea3n4AvTRHpADhAeYA4QHqAMB0ASQTuAEAZAGAaAGI9gHAQ&num=0&cid=5GgCKLauz-kthEz8VwyzNqLz&sig=AOD64_3AsZ-FYmOIQbDXfzHieZUN2g4eEQ&client=ca-pub-3069068742246799&adurl=http://dkykartal.com/?utm_source=UzmanTV&utm_medium=Video_PreRoll&utm_content=DKY_Kartal&utm_campaign=DKY_Kartal_IBillBoard


Method that i used for Decoding:

-(NSString *)createUrlWithGivenString:(NSString *)string{
    NSArray* components = [string componentsSeparatedByString:@"&"];
    NSString * urlString = [NSString new];

    for (NSString* str in components)
    {
        NSArray* keyval = [str componentsSeparatedByString:@"="];
        
        urlString = [[urlString stringByAppendingString:keyval[0]]stringByRemovingPercentEncoding];

        urlString = [[urlString stringByAppendingString:@"="] stringByRemovingPercentEncoding];
        
        urlString = [[urlString stringByAppendingString:keyval[1]] stringByRemovingPercentEncoding];
        
        urlString = [urlString stringByAppendingString:@"&"];
    }
    //removing Last & character which is not necessarry
    urlString = [urlString substringToIndex:[urlString length]-1];
    
    urlString= [self cleanWhiteSpace:urlString];
    
    //var olan stringi su anda NSURL 'e decode edip cevirecegiz
    
    NSString *encodedstr = encodeToPercentEscapeString(urlString);
    
    return encodedstr;
    
}

NSString* encodeToPercentEscapeString(NSString *string) {
    return (NSString *) CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(NULL,
                                                                                  (CFStringRef) string,
                                                                                  NULL,
                                                                                  (CFStringRef) @"&",
                                                                                  kCFStringEncodingUTF8));
}