2 u011469769 u011469769 于 2014.11.27 11:47 提问

Xcode6.1使用QRZBarSDK

在libqrencode中,QRCodeGenerator类中一片红啊,框架导入的都正确,使用Xcode5.1没有任何问题,但是添加到Xcode6中,就是一坨红啊

#import "QRCodeGenerator.h"
#import "qrencode.h"

enum {
qr_margin = 3
};

@implementation QRCodeGenerator

  • (void)drawQRCode:(QRcode *)code context:(CGContextRef)ctx size:(CGFloat)size {
    unsigned char *data = 0;
    int width;
    data = code->data;
    width = code->width;
    float zoom = (double)size / (code->width + 2.0 * qr_margin);
    CGRect rectDraw = CGRectMake(0, 0, zoom, zoom);

    // draw
    CGContextSetFillColor(ctx, CGColorGetComponents([UIColor blackColor].CGColor));
    for(int i = 0; i < width; ++i)
    {
    for(int j = 0; j < width; ++j)
    {
    if(*data & 1) {
    rectDraw.origin = CGPointMake((j + qr_margin) * zoom,(i + qr_margin) * zoom);
    CGContextAddRect(ctx, rectDraw);
    }
    ++data;
    }
    }
    CGContextFillPath(ctx);
    }

  • (UIImage *)qrImageForString:(NSString *)string imageSize:(CGFloat)size {
    if (![string length]) {
    return nil;
    }

    QRcode *code = QRcode_encodeString([string UTF8String], 0, QR_ECLEVEL_L, QR_MODE_8, 1);
    if (!code)
    {
    return nil;
    }

    // create context
    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
    CGContextRef ctx = CGBitmapContextCreate(0, size, size, 8, size * 4, colorSpace, kCGImageAlphaPremultipliedLast);

    CGAffineTransform translateTransform = CGAffineTransformMakeTranslation(0, -size);
    CGAffineTransform scaleTransform = CGAffineTransformMakeScale(1, -1);
    CGContextConcatCTM(ctx, CGAffineTransformConcat(translateTransform, scaleTransform));

    // draw QR on this context

    [QRCodeGenerator drawQRCode:code context:ctx size:size];

    // get image
    CGImageRef qrCGImage = CGBitmapContextCreateImage(ctx);
    UIImage * qrImage = [UIImage imageWithCGImage:qrCGImage];

    // some releases
    CGContextRelease(ctx);
    CGImageRelease(qrCGImage);
    CGColorSpaceRelease(colorSpace);
    QRcode_free(code);

    return qrImage;
    }

@end

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