qr code reader android

Technology selectionIn order to solve the problem that the QR code cannot be scanned, the appropriate technical means must be chosen. Since our app refers to someone else's developed zbar-based image recognition plug-in, without the ability to modify the image recognition plug-in, I decided to solve this problem on the server side, considering the general type of the algorithm, in the service-side verificat

is not supported, so I used the latter method. Use To upload and select a local image, and then use its base64 format Var input = document. getElementById ("file_input"); if (typeof FileReader === 'undefined') {input. setAttribute ('disabled ', 'disabled');} else {input. addEventListener ('change', readFile, false);} function readFile () {var file = this. files [0]; if (! /Image \/\ w +/. test (file. type) {alert ("the file must be an image! "); Return false;} var

QR Code is a special barcode that encodes information such as numbers, letters, and Chinese characters. This article will provide guidance to programmers who want to learn about QR coding. QR code coding is a complex process, especially the generation of error-correcting

-dimensional barcode literal translation. The QR code is designed to support high-speed decoding of content. Implementation of the QR code in Java Hello World Zebra Crossing (ZXing) is a great open source library that can be used to generate and parse QR codes in vir

open source Java class Library for parsing 1d/2d barcodes in a variety of formats. The goal is to decode the QR code, Data Matrix, and UPC 1D barcodes. At the same time, it also provides a class library such as cpp,actionscript,android,iphone,rim,j2me,j2se,jruby,c#. The role of the Zxing class library is mainly decoding, is the current open source class library

Previous wordsFind a good blog post on the computer and want to access it on your phone. At this point, you must open the phone browser to enter a long URL to the line, very inconvenient. If the blog after the title with a small picture, click on the picture, there appears a large map of the two-dimensional code, and then sweep through the mobile phone, to carry out the blog access, it is relatively convenient.Search through the search engine to gener

The magic of QR code: Zxing allows you to share your Wi-Fi account and password, and zxingwifi QR code is a carrier for carrying information. It can be used to transmit business cards, URLs, and product information. This article describes another use of QR codes: Sharing Wi-

Following the previous introduction of a Japanese Open-Source Software (this software can only implement QRCode) Original article: Java implements code and decoding of the QR code QRCode. Now we find another excellent open-source tool-ZXing, it is more flexible and convenient, and supports multiple encoding formats. Full text directory: Basic Introduction Demons

What is a two-dimensional Barcode/QR code:Two-dimensional Barcode/two-dimensional code (2-dimen1_bar code) records the data symbol information by using a certain geometric chart that is distributed on a plane (two-dimensional direction) in a regular manner; inCodeThe concept of "0" and "1" bit streams that constitute the computer's internal logic is skillfully us

front end. Introduction: QRCode. js is a js library that supports HTML 5 canvas and table tagging in the DOM across browsers. We use QRCode. js. Browser: IE6 ~ 10, Chrome, Firefox, Safari, Opera, Mobile Safari, Android, Windows Mobile, ETC. Jquery-qrcode: Jquery-qrcode features: simple operation, small size, only 14 k after compression, but does not support Chinese encoding. Effect: Qrcodejs: Qrcodejs features:

During this time, two-dimensional code and one-dimensional code are recognized on IOS. I have encountered numerous problems during this period. I would like to summarize them and hope to provide them with reference. On iOS, the two open-source identification programs zbar and zxing are first searched for information on the Internet for QR

Cat Share, must boutiqueOriginal articles, welcome reprint. Reprint Please specify: Sanayu's BlogAddress: http://blog.csdn.net/u013357243QR Code is a project may be used, iOS open camera request QR Code speed is not Android can compare ... (Android scan

like this: It can be run directly, and the effect is good. If you encounter some errors, it may be because the compiled JDK version is earlier than 1.7. ArrayList But you may not be satisfied with this interface. The scan box is too large and the screen is full screen. API 15 (Android 4.0.3) is also required ). We will modify these requirements.2. code optimization 1. Function cropping (only the QRCode

send an instruction to the network, select the services you need based on your instructions. The USSD command has many functions, allowing the mobile phone to restore factory settings and display the mobile phone system software version information. IMEI (International Mobile Equipment Identity) is the abbreviation of International Mobile device Identity code. It is an electronic serial number consisting of 15 digits ", it corresponds to each mobile

Zxing: key code for customizing and modifying the QR code Official source code: http://code.google.com/p/zxing/downloads/list; Decompress the downloaded zxing-x.x.zip file. We only need to use the sample project in the android directory, Import the

address. Using a syntax format similar to {URLTO:www.ceshi.com} also allows recognition software to recognize URLs.e-mail (e-mail address)e-mail will be used on the Internet when you contact us. Of course, the QR code can also hold the address of the e-mail (for example, zhaoxiaobo987@163.com). Its syntax format is {mailto:zhaoxiaobo987@163.com}.Phone number (telephone numbers)The data format generated by

in the middle of the QR code */Bitmap bitmap = EncodingUtils. createQRCode (str, 500,500, null); // sets the image img. setImageBitmap (bitmap);} catch (Exception e) {// TODO Auto-generated catch block e. printStackTrace ();}}}}); Run the following code to generate the QR code