barcode-scanner

问题 I have been developing an android app to scan the barcode and QR code and send the results to some other application (HTTP). I have read most of the documentation over internet and here in stack over flow and got it working. I could able to run the stand alone zxing android app on my device, also I could run my own separate android app to use Zxing intent to scan the bar code. But even after reading so many questions here and some of the blogs in internet, I could not get my strict

问题 Can someone tell me if creating barcode scanner app (for Android) is difficult? Is OpenCV library good start? Where can I find algorithm which clearly explains how to read barcodes? I will appreciate all good materials about this topic! Thanks in advance! 回答1: The ZXing project provides a standalone barcode reader application which — via Android's intent mechanism — can be called by other applications who wish to integrate barcode scanning. The easiest way to do this is to call the ZXing SCAN

问题 Can someone tell me if creating barcode scanner app (for Android) is difficult? Is OpenCV library good start? Where can I find algorithm which clearly explains how to read barcodes? I will appreciate all good materials about this topic! Thanks in advance! 回答1: The ZXing project provides a standalone barcode reader application which — via Android's intent mechanism — can be called by other applications who wish to integrate barcode scanning. The easiest way to do this is to call the ZXing SCAN

问题 I have implement Zxing Barcode Scanner in ipad using PhoneGap 1.7.0 and Zxing Barcode Scanner from https://github.com/phonegap/phonegap-plugins/tree/master/iOS/BarcodeScanner. But the orientation is portrait only. I want to change it to landscape by modify this code if ([previewLayer isOrientationSupported]) { [previewLayer setOrientation:AVCaptureVideoOrientationPortrait]; } and this code too if (interfaceOrientation == UIInterfaceOrientationPortrait) return YES; in CDVBarcodeScanner.mm and

问题 I have written a python script that polls evdev for a HID barcode scanner (emulates a keyboard): the script works well on Linux platforms (Ubuntu). Is there an OS X Python equivalent for evdev that would allow minor porting of the existing python script? If you have Python experience and have configured it for a HID device input, please indicate this in your response. 回答1: I got a simple test working using cython-hidapi (installable as pip install hidapi - note this is different to the one

问题 Anyone got a good handle on a barcode scanning library that can be used to read in UPC-A, EAN-13 or other major barcode formats based on input from the digital camera? Does RIM have a standard library already available for this? I know that BlackBerry Messenger has 2D barcode scanning built-in so I'm guessing there must be something available, though not sure if it's proprietary or not. Update: I'll go with the zxing library for now and see how that pans out since there aren't any official

问题 Anyone got a good handle on a barcode scanning library that can be used to read in UPC-A, EAN-13 or other major barcode formats based on input from the digital camera? Does RIM have a standard library already available for this? I know that BlackBerry Messenger has 2D barcode scanning built-in so I'm guessing there must be something available, though not sure if it's proprietary or not. Update: I'll go with the zxing library for now and see how that pans out since there aren't any official

问题 I need to read data from barcode scanner in a web page. I agree that a usb scanner or a scanner equipped with keyboard wedge driver could get the data to a text field in the web page. I'm curious to know how do we read the data from RS-232 based scanner and bluetooth scanner. Will they also get the data to a textfield in a web page without any extra effort? If not, how do I accomplish that? 回答1: Yes, if you're scanning into a webpage form (and not your own desktop app), you need to have some

问题 Below is my barcode scanner activity, everything works fine except for the setAutoFocusEnabled(true). It returns a message on runtime that says my device does not support auto focus although the Samsung Tab E T561 is an auto focus enabled device. import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.util.SparseArray; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.widget

问题 I'm trying to add ZXing to my project (add a button which calls the scanner upon press). I found this: http://groups.google.com/group/android-developers/browse_thread/thread/788eb52a765c28b5 and of course the ZXing homesite: http://code.google.com/p/zxing/, but still couldn't figure out what to include in the project classpath to make it all work! As for now, I copied the classes in the first link to my project (with some package name changes), and it runs but crashes after pressing the