QR Encode allows anyone to generate various types of QR codes. You can export generated QR code in PNG or EPS format. QR Encode offers the ability to change the background and foreground colors of ...

将字符串生成二维码。能够将一个字符串（NSString）转换成一个二维码图像（UIImage）。代码中用到了类库libqrencode。

QR codes have become an everyday tool, whether you’re scanning a menu at a restaurant, accessing a website, or sharing contact details. But have you ever thought about creating them yourself—right ...