How to generate QR code in iPhone?

Now with iOS 7 it can be done directly without additional libraries. There's an excellent example at https://github.com/shu223/iOS7-Sampler

I have found one very simple way how to generate QR Code using Google Api.Just take 1 UIWebView in your code I have taken IBOutlet UIWebView *webView; and I want add this Much of Information in My QR Code. 1.Business Name 2.First Name and Last Name 3.Physical Address and phone 4.Website

NSString *url=[NSString stringWithFormat:@"http://chart.apis.google.com/chart?cht=qr&chs=200x200&chl=MECARD:ORG%@CN%@%@CTEL%@CADR%@%@%@%@%@CEMAIL%@",[d valueForKey:@"QR Business Name"],[d valueForKey:@"QR First Name"],[d valueForKey:@"QR Last Name"],[d valueForKey:@"QR Phone"],[d valueForKey:@"QR Physical Address"],[d valueForKey:@"QR Physical City"],[d valueForKey:@"QR Physical State"],[d valueForKey:@"QR Physical Zip"],[d valueForKey:@"QR Physical Zip Plus 4"],[d valueForKey:@"QR Website"]];

url=[url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

//Create a URL object.
NSURL *Curl=[NSURL URLWithString:url];
//URL Requst Object
NSURLRequest *request = [NSURLRequest requestWithURL:Curl];
//Load the request in the UIWebView.
[webView loadRequest:request];

You can use this framework : onbarcode or zxing