问题
I have seen some example codes, these code are creating QR codes froms Text (below is the code).can we generate QR codes from other data also (like Image)?
NSString *code = @"1001012023034";
Barcode *barcode = [[Barcode alloc] init];
self.view.backgroundColor = [UIColor whiteColor];
[barcode setupQRCode:code];
self.imageView.image = barcode.qRBarcode;
My question is if we use Image instead of string data then is it possible?
回答1:
QR codes are pretty limited in terms of data storage, limited to a few kb - see http://en.wikipedia.org/wiki/QR_code#Storage for storage sizes. As such, you won't be able to put an image in there. What you CAN do, however, is upload the image somewhere and encode a link to that image instead.
回答2:
Yes, It's Possible. There are two Best Libraries available :
1) For Encoding : QR-Code-Encoder-for-Objective-C
2) For Decoding : ZBar bar code reader
GoodLuck.
来源：https://stackoverflow.com/questions/16054305/create-qr-code-in-iphone