qr-code

问题 In my controller I have the following method: import net.glxn.qrgen.QRCode; import org.marcio.demospringboot.dao.FormationRepository; import org.marcio.demospringboot.model.Formation; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.HttpHeaders; import org.springframework.http.HttpStatus; import org.springframework.http.MediaType; import org.springframework.http.ResponseEntity; import org.springframework.stereotype.Controller; import org

问题 I'm developing app in spring + hibernate in maven and I need to make QR codes so I've found this tutorial http://viralpatel.net/blogs/create-qr-codes-java-servlet-qr-code-java/ In that tutorial following libs are in use: xzing and qrgen (net.glxn.qrgen) I've added in pom.xml dependency on xzing and its running but qrgen needs his own repo so I've included repository like on that page: http://kenglxn.github.com/QRGen/ : but it seems that http://kenglxn.github.com/QRGen/repository is down

问题 I cannot initialize CIDetector for reading QRCOde , It always remains nil. Here is my code : let options = [CIDetectorAccuracy: CIDetectorAccuracyHigh] self.detector = CIDetector(ofType: CIDetectorTypeQRCode, context: nil, options: options) If I replace CIDetectorTypeQRCode with CIDetectorTypeRectangle it get initialized but I need to read QRCode I am trying from last two days, Please help 回答1: Finally got that working: Follow the steps: Select XcodeProject Select Target Select BuildSettings

问题 I have made a working program that generated an image given a certain string. It is fully working on my Slackware 32bit distro and others distros also 32bit. Now i need to implement it on the client machine, which is an AIX powerpc. It compiled without any problem, and seems to work (every other function works and gives correct results), except when i call these 2 functions "QRcode_encodeString" and "QRcode_encodeData". It keeps giving me Segmentation fault. You can assume my main() only line

问题 I am using rqrcode_png gem to generate QR codes images in png format https://github.com/DCarper/rqrcode_png. QR codes are generated successfully in png image format but the color of QR code is black & white and I want to generate QR code in blue & white format. I search a lot on the internet but not found any answer on this. Also the documentation of rqrcode_png gem doesn't specify any way to change the color of QR code. Please help Thanks, 回答1: The rqrcode_png uses chunky_png to generate

问题 I am trying to generate Qr code for my App. The user will enter some text an the the data will be passed to next activity which will display the QR code. Here is my code. public class QRgenerator extends AppCompatActivity { ImageView imageView; String Qrcode; public static final int WIDTH = 500; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_qrgenerator); getID(); Intent intent = getIntent(); Qrcode = intent

问题 I am using https://github.com/dlazaro66/QRCodeReaderView (QR code scanner ) in my android application My mainfest permission looks like this : <uses-permission android:name="android.permission.CAMERA" /> <uses-feature android:name="android.hardware.camera" /> <uses-feature android:name="android.hardware.camera.autofocus"/> and in Gradle I have the following code : compileSdkVersion 23 buildToolsVersion "23.0.2" defaultConfig { applicationId "com.gurkhatech.schoolmanagement" minSdkVersion 15

问题 My django app is using a multi-frames reportlab pdf report in witch I would like to add some barcodes/qr-codes. The problem I have is that every object I add to my layout have to be a Flowable. So the question would be as to cast a PlotArea (mother class of QrCodeWidget) as Flowable. If we have an answer here the error message we can get if we add the QrCodeWidget as AttributeError: QrCodeWidget instance has no attribute 'getKeepWithNext' 回答1: Ok, I made my own Flowable, it was simpler than I

问题 I tried to use online tools, like google/qr_codes and goQR.me, but neither have an "alphanumeric characters" option, only complete binary (UTF8 or ISO) character set. I need only a little alphanumeric (A-Z,0-9,-,/,etc.), so a string like " http://bit.ly/1234 " (a string with length=18 ) can be expressed by a Version-1 (21 rows) QR-Code symbol. I also try to install (Linux, PHP, Python, etc.) tools... And, to my surprise, no "alphanumeric" option! (only, indirectly, the "binary" option).

问题 I am developing an android application that scans QR codes using the Zbar API. However upon testing, I have noticed that the application worked perfectly fine on Samsung, HTC and a chinese brand phone but not on a sony device(Xperia z1). What happens is that the camera and viewer works fine in the first few seconds but suddenly crashes. Is there an issue with regards to the Zbar API for it not to work with Sony phones, or is this an isolated scenario?? Are there already solutions for this