I recently had to implement a scanner system to interact with java. I used Honeywell Voyager MS9540 USB barcode scanner. As a default the scanner sent the data straight as keyboard input – no driver required. But it was very easy to get this model to interact directly with java rather than using a keyboard … Read more
I wrote this answer, because my Barcode Scanner Motorola LS1203 generated keypress event, so I can’t use Utkanos’s solution. My solution is: var BarcodeScanerEvents = function() { this.initialize.apply(this, arguments); }; BarcodeScanerEvents.prototype = { initialize: function() { $(document).on({ keyup: $.proxy(this._keyup, this) }); }, _timeoutHandler: 0, _inputString: ”, _keyup: function (e) { if (this._timeoutHandler) { clearTimeout(this._timeoutHandler); this._inputString … Read more
Android programs can interact with eachother using intents. Intents are a little like remote procedure calls: you ask the other program for a certain action (e.g. scan a barcode) and the other program will perform this task for you. The result is returned when the task is complete. If the user has installed the ZXing … Read more
It’s not built into the SDK, but you can use the Zxing library. It’s free, open source, and Apache-licensed. The 2016 recommendation is to use the Barcode API, which also works offline.
Check out https://github.com/serratus/quaggaJS “QuaggaJS is a barcode-scanner entirely written in JavaScript supporting real- time localization and decoding of various types of barcodes such as EAN, CODE 128, CODE 39, EAN 8, UPC-A, UPC-C, I2of5, 2of5, CODE 93 and CODABAR. The library is also capable of using getUserMedia to get direct access to the user’s camera … Read more
Jeff Lamarche’s Cocoa Barcodes project for iPhone and iPad Zxing’s barcode image process library Android barcode library ISBN & QR Barcode Scanning Mobile App for Libraries
Your pseudo code won’t work, because you don’t have access to the scanner to catch events like scanButtonDown. Your only option is a HID scanner, which behaves exactly like a keyboard. To differentiate scanner input from keyboard input you have two options: Timer-based or prefix-based. Timer-based The scanner is likely to input characters much quicker … Read more
Kris Erickson is correct, the Zxing & Phonegap projects has already taken care of the heavy lifting for you. (My current SO reputation disallows me from commenting, but I would have.) I’ve just made an Phonegap/Android app that scans a QR barcode using the plugin here. Follow the instructions and you should be successful. It’s … Read more
UPDATE! – SOLVED + GUIDE I’ve managed to figure it out 🙂 And down below you can read step-by-step guide so it hopefully can help others with the same problem as I had 😉 Install Apache Ant – (See this YouTube video for config help) Download the ZXing source from ZXing homepage and extract it … Read more
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 Intent from your application, like this: public Button.OnClickListener mScan = new Button.OnClickListener() { public void … Read more