myang-git / qr-code-encoder-for-objective-c Goto Github PK

When I encode something between 6000 and 7,089 numeric characters the padding on the UIImage is like 2/3 of the image. Are you aware of this problem and is there a fix?

I tried to implement the qrencode in my project but I'm using storyboard and I have errors in this line
class CQR_Encode
the errors
unknown type name 'class'; did you mean 'Class'?
expected ';' after top level declarator

I already change the. m a. mm but equal does not work,I do not know if anyone has implemented in IOS5
i help a littler help

Hi,
After using your pod,
I still getting a errors in linking.
Please fix it!

If I type Chinese, will this code support to encode ?

For some reason i was required to add "-lstdc++" to other linker flags of my project. Otherwise it wouldn't let me compile.

I love C++11 meta awesome as much as the next guy, but mass renaming, especially for existing apps, is painful configuration over convention.

I audited the class, it's not really doing anything C++ like except hiding some private instance vars that get passed around. And there's only one public method, so it seems kind of goofy to use classes. I'll demonstrate a C++ -> C trick of how to hide private instance data w/ public in 1 malloc.

Having it as a C99 QR library is also useful.

Legacy code-style transition:

1. Keep the existing classes that proxy to C equivalents (no mm -> m required).
2. Simple #ifdef to choose C or C++ version in the one place w/ new and delete.
3. Optional deprecations notices later.

--excuses for not using this awesome library! :)

1. Dependency -> weak_dependency on UIKit
2. Possibly weak_dependency on AppKit
3. Do The Right Thing ™️

Hi Myang, I downloaded your code and use it as you mentioned in readme file, it could work well in simulator, but in iphone there only show one black image, I have no idea why this problem exist, have you ever run this code in real device ?
any reply is appreciate, thanks a lot!

Hi myang,

Thank you for sharing the code. Can you please share an instruction file about how to run the code? I tried opening ReadMe, but it does not open.

Thanks!

Cheers!

Hi,

Thank you for this code and for related doc! Very helpful!

I face an issue trying to instal my app, build with QR Code Encoder, on iPhone 3G (armv6).
It looks impossible to build the QRCodeEncoderObjectiveC project with armv6 architecture.

If you have some help, I would be grateful!

Thank you,
Nicolas

I have renamed my implmentation file that makes use of QREncoder.h, yet I still "unknown type class" which flags QR_Encode.h. I even went all the way up to main.m and renamed it main.mm.

I realize this has been asked many times before, but I have followed those instructions, yet I still the error. Any ideas?

I'm getting multiple errors in the QR_Encode.h file on line # 81 when I try to build a demo app. I've followed the instructions for dragging the project over, setting the dependency and adding the linked library.

The line contains:
class CQR_Encode

The errors are:
-Unknown type name 'class'; did you mean 'Class'?
-Expected ';' after top level declarator

Thanks

Great project, it was super easy for me to get working. Maybe I'm blind but I don't see any licence info in the project. Do you have any restriction on what I do with this?

This library currently crashes on iOS 8 :(

Getting the error in the title in line 89 of QR_Encode.h

class CQR_Encode
{

Hi:
I Think this can make high resolution QR Image
( Make a bigger Matrix)

////////////////////////////////////////////////////////////////////////////////////////////////////

• (UIImage *)imageForMatrix:(QRMatrix *)matrix {
  int width = matrix.width;
  int height = matrix.height;

  int bl = 8; // this is make more big matrix
  QRMatrix _newMatrix = [[QRMatrix alloc] initWithWidth:width_bl height:height*bl];
  for(int y = 0; y < height; y++) {
  for(int x = 0; x < width; x++) {
  int
  blx = x * bl,
  bly = y * bl;
  for(int blax = 0; blax<bl ; blax++){
  for(int blay = 0; blay<bl ;blay++){
  [newMatrix setX:blx+blax y:bly+blay value:[matrix getX:x y:y]];
  }
  }
  }
  }

  matrix = newMatrix;
  width = matrix.width;
  height = matrix.height;

  unsigned char *bytes = (unsigned char *)malloc(width * height * 4);
  for(int y = 0; y < height; y++) {
  for(int x = 0; x < width; x++) {
  BOOL bit = [matrix getX:x y:y];
  unsigned char intensity = bit ? 0 : 255;
  for(int i = 0; i < 3; i++) {
  bytes[y * width * 4 + x * 4 + i] = intensity;
  }
  bytes[y * width * 4 + x * 4 + 3] = 255;
  }
  }

  //int width = 32;
  //int height = 32;
  //unsigned char *bytes = (unsigned char *)malloc(width * height);
  //memset(bytes, 255, width * height * 4);

  CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
  CGContextRef c = CGBitmapContextCreate(bytes, width, height, 8, 4 * width, colorSpace, kCGImageAlphaPremultipliedLast);
  CFRelease(colorSpace);
  CGImageRef image = CGBitmapContextCreateImage(c);
  CFRelease(c);
  UIImage *image2 = [UIImage imageWithCGImage:image];
  CFRelease(image);
  return image2;
  }

Unknown type class CQR_Encode of line 81 <--- this is giving me an error. :(

Hello,

I'm using xcode 4.2 (4C199) and I followed every step about 5 or 6 times but it just doesn't work
I also tried to fix it on my own but I ALWAYS get these two issues:

QR_Encode.h:81:1: error: unknown type name 'class'; did you mean 'Class'? [3]
QR_Encode.h:81:17: error: expected ';' after top level declarator [1]

Hope you can help me.

Thx. Alex

Hi,

how can i generate a QRCode UIImage without the white border around the QRCode?

Best Regards