Add http:// to NSURL if it's not there

Question

I am using web view in my app, getting a URL from a text field. It works if the string starts with "http://". I am trying to modify the code so that it can also handle the situations where users don't enter "http://" or "https://"

How to check if the URL doesn't have "http://" in it ? How to modify the URL to add "http://" in it ?

NSString *URLString = textField.text;
NSURL *URL = [NSURL URLWithString:URLString];
NSURLRequest *request = [NSURLRequest requestWithURL:URL];
[self.webView loadRequest:request];

Answer 1

NSString *urlString = @"google.com";
NSURL *webpageUrl;

if ([urlString hasPrefix:@"http://"] || [urlString hasPrefix:@"https://"]) {
    webpageUrl = [NSURL URLWithString:urlString];
} else {
    webpageUrl = [NSURL URLWithString:[NSString stringWithFormat:@"http://%@", urlString]];
}

NSURLRequest *urlRequest = [NSURLRequest requestWithURL:webpageUrl];
[self.myWebView loadRequest:urlRequest];