iOS中各种条形码阅读器免费软件开发工具包

Question

我正在制作一个免费的条形码阅读器应用程序。我正在寻找免费的SDK解码Datamatrix，QR，Aztec，UPC，EAN条形码。我已经按照现在实现了ZBar SDK。成功检测QR、UPC和EAN。我测试了This link

Zbar

ZXingOBjC

但这些都不能正确检测Aztec。有了Data Matrix，UPC，EAN和QR，我发现雷射非常有效，但现在它不是免费的。

现在，有没有免费的SDK可以检测所有四个条形码，而不需要付费，因为我想让我的应用程序在应用程序商店上免费。

请给出建议

附言:我希望扫描仪与最新的iOS兼容。

Answer 1

通过一些工作，您可以使用zint来完成这项工作。参见https://github.com/samlown/zint/blob/master/backend/aztec.c我已经在一个应用程序中使用过这个。对不起，我不能分享更多的代码:包括条形码，阿兹特克，通用，字体，gs1，rs和bmp类，然后把下面的代码放在一个单独的类中

void dataProviderReleased (void *info, const void *data, size_t size) {
    struct barcode_symbol *my_symbol = info;
    Barcode_Delete(my_symbol);
}

+ (UIImage *)aztecBarcodeImageFromString:(NSString *)s scale:(CGFloat)scale {
    UIImage *image = nil;
    int errorCode = 0;
    struct barcode_symbol *my_symbol;

    if (s == nil) {
        return nil;
    }

    unsigned char *unicodeCharPtr = (unsigned char *)[s cStringUsingEncoding:NSUTF8StringEncoding];

    LogInfo(@"Creating barcode image for string: %@", s);

    my_symbol = Barcode_Create();

    my_symbol->output_options = 0;

    //my_symbol->output_options = BARCODE_BOX; //For a box around the bar code
    my_symbol->scale = scale;
    my_symbol->symbology = BARCODE_AZTEC;

    my_symbol->input_mode = UNICODE_MODE;

    errorCode = Barcode_Encode(my_symbol, unicodeCharPtr, 0);

    if (errorCode == 0) {
        errorCode = Barcode_Buffer(my_symbol, 0);

        if (errorCode == 0) {

            int numberOfComponents = 3;
            long imgSizePerRow = numberOfComponents * my_symbol->bitmap_width;
            long imgSize = imgSizePerRow * my_symbol->bitmap_height;

            CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();

            //The dataProviderReleased method is responsible for deallocating the ZBarCode with the corresponding image data
            CGDataProviderRef providerRef = CGDataProviderCreateWithData(my_symbol, my_symbol->bitmap, imgSize, dataProviderReleased);

            CGImageRef imageRef = CGImageCreate(my_symbol->bitmap_width, my_symbol->bitmap_height, 8, numberOfComponents * 8, 
                                                imgSizePerRow, colorSpace, kCGBitmapByteOrderDefault | kCGImageAlphaNone, 
                                                providerRef, NULL, NO, kCGRenderingIntentDefault);

            image = [UIImage imageWithCGImage:imageRef];

            CGColorSpaceRelease(colorSpace);
            CGDataProviderRelease(providerRef);
            CGImageRelease(imageRef);
        } else {
            LogWarn(@"Could not buffer barcode, error=%d", errorCode);
            Barcode_Delete(my_symbol);
        }

    } else {
        LogWarn(@"Could not encode barcode, error=%d", errorCode);
        Barcode_Delete(my_symbol);
    }

    return image;
}

Answer 2

您可以扫描自定义ZBar扫描程序，如设置更多符号系统，如下所示

-(void)scanProductBarCode
{
    ZBarReaderViewController *reader = [ZBarReaderViewController new];
    reader.readerDelegate = self;

    if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
        reader.supportedOrientationsMask = ZBarOrientationMaskLandscape;
    else
        reader.supportedOrientationsMask = ZBarOrientationMaskPortrait;

    ZBarImageScanner *scanner = reader.scanner;
    [scanner setSymbology: ZBAR_UPCA config: ZBAR_CFG_ENABLE to: 1];
    [scanner setSymbology: ZBAR_CODE39 config: ZBAR_CFG_ADD_CHECK to: 0];
    [scanner setSymbology:ZBAR_QRCODE config:ZBAR_CFG_ADD_CHECK to:1];
    [scanner setSymbology:ZBAR_EAN13 config:ZBAR_CFG_ADD_CHECK to:1];

    [self presentModalViewController:reader animated:YES];
}

Answer 3

现在，您可以使用AVFoundation扫描条形码，并且支持您在问题中提到的所有条形码类型。

快速教程：Building a Barcode and QR Code Reader in Swift 3 and Xcode 8