Set Custom User-Agent Of UIWebView

gistfile1.txt

- (void)setDefaultWebViewUserAgent
{
    // Get Default UserAgent.
    UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectZero];
    NSString *agent = [webView stringByEvaluatingJavaScriptFromString:@"navigator.userAgent"];
    
    // Save it.
    NSDictionary *dictionary = [NSDictionary dictionaryWithObjectsAndKeys:[NSString stringWithFormat:@"%@;my user-agent", agent], @"UserAgent", nil];
    [[NSUserDefaults standardUserDefaults] registerDefaults:dictionary];
}