zxing

First to show you the effect of the picture: The scan is the following one, and the two-dimensional code is generated using the Zxing library. Because of the change of several classes, or last year's things are almost forgotten, so only on the code of this class, the main is to change the Captureactivity.java Package com.zxing.activity; Import java.io.IOException; Import Java.util.Vector; Import android.app.Activity; Import android.content.

Now when the two-dimensional code is so popular, you must also know how the two-dimensional code is generated. Now let's take a look at how it was built. In fact, the main use of the goggle released by the jar: This article to turn to open the link 1, two-dimensional code generation Add the Zxing-core.jar package to the classpath. The generation of two-dimensional code needs the help of Matrixtoimagewriter class, this class is provided by Google, can

first download the corresponding jar package, this example uses the Zxing2.2jar Download Address: http://download.csdn.net/detail/gao36951/8161861 Zxing is a Google-provided analytical tool for barcode (one-dimensional code, two-dimensional code), which provides a method for generating and parsing two-dimensional codes,See zxing example below Code: Package com.zxing.create; Import Java.awt.image.Buffered

notes, Google zxing two-dimensional code, with data flow output to the page display Two-dimensional code has been very popular, today practiced a bit, requirements are generated for the different parameters of the address link two-dimensional code, and displayed on the page, if the use of generated pictures to save the local return to the relative path, will produce a heap of garbage picture files, but also to remove the late is really trouble, think

Zxing is a QR code scanning project provided by GoogleThe demo itself is the default sweep area of the largest only 360*480 need to pull up a very long distance ability to scan the entire QR code toSo we need to adjust the size of the map ourselves.Make adjustments in the Cameramanager.java classThe default size is the following 4 of the parameters private static final int min_frame_width = 240;// private static final int min_frame_height = 240;//

As follows:The production process is very simple is to add a logn icon in the original two-dimensional code image, the code of the comments written in detail, it will not give you a long-windedPackage Com.example.day44_02_qrcodewithlogin;import Java.util.hashmap;import Java.util.map;import Android.app.activity;import Android.graphics.bitmap;import Android.graphics.bitmap.config;import Android.graphics.bitmapfactory;import Android.graphics.canvas;import Android.os.bundle;import Android.view.Menu;

Look at the picture./** * Calculates the most appropriate preview interface size from the camera's supported resolution * * @param parameters * @param screenresolution * @return */private Point Findbestpreviewsiz Evalue (camera.parameters Parameters, point screenresolution) {list//if (Log.isloggable (TAG, Log.info)) {//StringBuilder previewsizesstring = new StringBuilder (); //For (Camera.size supportedpreviewsize:supportedpreviewsizes) {//Previewsizesstring.append ( supportedpreviewsize.width).

width = display. GetWidth();int height = display. GetHeight();if (width ;width = height;Height = Temp;} screenresolution = new Point (height, width);Cameraresolution = findbestpreviewsizevalue (Parameters, new point (width, height));Step 4:add following line to rotate Camera insetdesiredcameraparameters (...)Cameraconfigurationmanager.javacamera.setDisplayOrientation(90);Step 5:do not forget to set orientation of activity to portrait. I.e:manifest Copyright NOTICE: This article for Bo Master or

Http://cache.baidu.com/C? M = listen P = 83759a46d0c906f450ed903a00009cc70 newp = Comment User = Baidu fm = SC query = zxing % D0 % de % B8 % c4 % B4 % F3 % D0 % A1 qid = be19cfbe16976dec p1 = 2 After I use the method described in the above article, the screen is blurred, just because Step 5 does not change the parameters affected by Step 5, so I changed getframingrectinpreview in cameramanager: Rect = new rect (framingrect );Point cameraresolu

Android QR code scanning (zxing usage summary) There are three main points: 1. Draw the interface, including four corners, scrolling up and down, and adding text to the canvas 2. Adjust the position of the QR code scan box. 3. Solve the Problem of image deformation. 1. Draw the onDraw () method in ViewfinderView. java on the page @ Overridepublic void onDraw (Canvas canvas) {// scan box in the middle. Modify the size of the scan box and modify Rect fr

This simple question bothered me for nearly two hours, the main is the official document did not find the demo, that can only use search engines, see other programmers to write the program, but found everywhere is a pit, see four or five examples, no one can be normal operation, all the error, after one hours of trial, only to finish. Not much to say, directly on the screenshot and code. First, add the Zxing.dll reference to the project (zxing.dll download address http://www.jb51.net/dll/zxing.

For a few days Android, feeling zxing very large, a lot of bags, Personal recommendation: Java EE display two-dimensional code, or upload to two-dimensional code to parse or .... Android Build scan Parse two-dimensional code Download Address http://download.csdn.net/detail/hejias/5891099 -------------------------------------------------------------------Gorgeous split Line------------------------------------------------ -----------------------------

Java zxing generation of two-dimensional code learning 1. Generate two-dimensional code without logo Import Java.awt.image.BufferedImage; Import Java.io.File; Import java.io.IOException; Import Javax.imageio.ImageIO; Import Com.google.zxing.BarcodeFormat; Import Com.google.zxing.Binarizer; Import Com.google.zxing.BinaryBitmap; Import com.google.zxing.ChecksumException; Import com.google.zxing.FormatException; Import Com.google.zxing.LuminanceSourc

First, add the jar pack com.google.zxing core 3.0.0 com.google.zxing javase 3.0.0 First, the operation of the bar code Import Java.awt.image.BufferedImage; Import Java.io.File; Import

First, download zxing.net The address is: http://zxingnet.codeplex.com/releases/view/117068 Then drag the corresponding version. dll into the project, and then refer to it. Mainly used Barcodewriter, Barcodereader. Two, generate two dimensional

The first is simple coding, the code is as follows /** * Two-dimensional encoding based on strings * @param str needs to encode the string * @param widthandheight the height of the bitmap that needs to be generated @return * /Public

Viewfinderview customizes the view and implements a simple scanning interface. This article record my understanding of Android camera in the code process. Since I started to write a technical blog, there are many shortcomings in the first two

Error:Indexoutofrangeexception:array Index is out of range.ZXing.Color32Renderer.Render (ZXing.Common.BitMatrix Matrix, barcodeformat format, System.String content, ZXing.Common.EncodingOptions options)Zxing.barcodewritergeneric ' 1[toutput]. Write (

Zxing is an open source repository for Google. can be used to generate two-dimensional code, scan two-dimensional code. The first part is described in this article.First Up:Zxing related various documents Official:

The code is as follows:1.maven Jar Required com.google.zxing core 3.0.0 com.google.zxing javase 3.0.0 2. Generate two-dimensional code: Package com; Import Java.io.File; Import java.io.IOException; Import Java.nio.file.