qr-code

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

问题 i don't understand why this code doesn't work, the detector is always nil with the CIDetectorTypeQRCode constant, everything work with CIDetectorTypeFace. I Supect a bug from API of Apple. This a the official doc : Apple documentation @IBAction func analyseTag(sender: AnyObject) { var detector:CIDetector = CIDetector(ofType: CIDetectorTypeQRCode, context:nil, options:[CIDetectorAccuracy: CIDetectorAccuracyHigh]) var decode = "" var ciImage:CIImage = CIImage(image: ImgChoosed.image) var

问题 Using visual Studio ultimate 2012. Im currently building a report to be printed in report viewer. so far i have a bunch of text boxes that Gets its values from my form text boxes via parameters. So far all works fine. Then I hit a major problem. How do you pass an Image From my images on my form to an image on a report? 1 image pre exists on a database i beleive i can call into the image as a parameter(not sure). the bigger issue is the other image. The other image uses an external API that

问题 I was having some problem when trying to generate QR code in Android Programming. Here is the Tutorial I followed. When my generate button on click, I am calling this method: private void generateQR(){ String qrInputText = "test"; //Find screen size WindowManager manager = (WindowManager) getSystemService(WINDOW_SERVICE); Display display = manager.getDefaultDisplay(); Point point = new Point(); display.getSize(point); int width = point.x; int height = point.y; int smallerDimension = width <

问题 I am trying to generate UTF-8 QRCode so that I can encore accents and Unicode characters. To test it, I am using many decoding solution : http://zxing.org/w/decode.jspx - The zxing project also used in Android http://www.drhu.org/QRCode/QRDecoder.php - a PHP Decoder http://zbar.sf.net - The ZBar bar code reader - OpenSource and C project for embedded All of them give me always the same result. You can try this image works well with Unicode Characters. But if I am trying to use zxing or Google

问题 Some questions about using Zxing... I write the following code to read barcode from an image: public class BarCodeDecode { /** * @param args */ public static void main(String[] args) { try { String tmpImgFile = "D:\\FormCode128.TIF"; Map<DecodeHintType,Object> tmpHintsMap = new EnumMap<DecodeHintType, Object>(DecodeHintType.class); tmpHintsMap.put(DecodeHintType.TRY_HARDER, Boolean.TRUE); tmpHintsMap.put(DecodeHintType.POSSIBLE_FORMATS, EnumSet.allOf(BarcodeFormat.class)); tmpHintsMap.put

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed last year . i would like to implement a QR Code/Barcode reader within my application. I would like to know what is the most lightweight solution to do this (disregarding intent integrator from zxing). 回答1: I used zxing to build into my application. You will need a bit of coding. First include core.jar , its at core/core.jar

问题 I am building a QR code scanner with Swift and everything works in that regard. The issue I have is that I am trying to make only a small area of the entire visible AVCaptureVideoPreviewLayer be able to scan QR codes. I have found out that in order to specify what area of the screen will be able to read/capture QR codes I would have to use a property of AVCaptureMetadataOutput called rectOfInterest . The trouble is when I assigned that to a CGRect, I couldn't scan anything. After doing more

问题 I want to generate the colorful QR code. I had used https://github.com/kuapay/iOS-QR-Code-Generator code to generate the QR code. now the qr code generated is always n black color.I want to make it in Red or any other color. The coding of coloring And the drawing of QR code .png image is done QR_Draw_png.mm file. What should i edit in QR_Draw_png.mm this file. How to do the generate the colorful qr code. How is it possible. Please help me. 回答1: This is the best example to generate colorful QR

问题 I want to generate the colorful QR code. I had used https://github.com/kuapay/iOS-QR-Code-Generator code to generate the QR code. now the qr code generated is always n black color.I want to make it in Red or any other color. The coding of coloring And the drawing of QR code .png image is done QR_Draw_png.mm file. What should i edit in QR_Draw_png.mm this file. How to do the generate the colorful qr code. How is it possible. Please help me. 回答1: This is the best example to generate colorful QR