Java Reader Download For Android

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How to Scan & Read Linear & 2D BarCodes in Java applications using Java Barcode Reader Library

Java Barcode Reader

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is a Java barcode scanning library which scan and read 1D (linear) and 2D (matrix) barcodes from image files. Besides Java Barcode Reader library, OnBarcode also provides Java Barcode Generator for generating linear and 2D barcodes in the Java program.
This article provides detailed developer guide for Java Barcode Reader library. To use this article, you need first download the trial version of Java Barcode Reader from our site.

Index

• OnBarcode.BarcodeReader.jar library for Barcode Reader
  
• test-src contains testing application, its souce codes and sample images.
  
• lib contains two jars for TIFF and bitmap image.
  
• Purchase-Java-Barcode-Reader.html contains link to buy OnBarcode.com Java Barcode Reader online.
  
• DeveloperGuide.html developer guide.

Java Barcode Reader Install & Requirement

Requirement

You need Java JDK 1.4.2 or later version.

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Install

Put BarcodeReader.jar into your Java project classpath.
To read Tiff and bitmap image, you need two extra jars from Sun Microsystem, see how to read barcodes from tiff and bitmap images.

Read barcodes from image is a simple task with barcode reader for java library.
Here is the sample code.

Pass your barcode image file, and barcode type to BarcodeReader, and it will return barcode datas. Complete demo source code is under test-src folder.

Java Barcode Reader FAQ

How to read barcode from a specified area (rectangle) in the image?

To improve scanning speed, you can specify a rectangle area in the image for scanning barcode.

• Pass your barcode image file, and barcode type, and ScanOption object to BarcodeReader, and it will return barcode datas in the specified area from the image.

TIFF/Bitmap Image Reader

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For TIFF or Bitmap image reading only, developers need include two Java Advanced Imaging jars from Sun Microsystems, jai_codec.jar, jai_core.jar. Both are included under lib folder.
To know more details about Java Advanced Imaging, please go to Java Advanced Imageing Site.

How to get supplement barcode data?

For barcode EAN 8, EAN 13, UPC-A, UPC-E, their barcode image may contain 2 or 5 digits supplement barcode, Java Barcode Reader will add supplement barcode data to the main barcode data.
For example, Java barcode reader will return data as '123450512345' for above sample image. The First 7 digits '1234505' is UPCE data, and the last 5 digits '12345' is UPCE supplement data.

About UPC-E data

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For UPC-E barcode, usually there are 8 digits printed on the barcode label. The first digit is UPC-E number system, valid values are 0 or 1. The next 6 digits are UPC-E data, and the last one is checksum.
Our library will return 6 digits data and the last one checksum. Developer should use the first 6 digits as UPC-E data, according to UPC-E specification.
For the above barcode image, 0 is the number system, 123450 is the UPC-E data, and 5 is the checksum. Our library will return 1234505, plus suppliment barcode 12345. So the final output will be 123450512345.

Support Multi-page Tiff File

For multi-page tiff file, Java barcode reader will scan every page in the file, and return all barcodes in all pages.

Java Barcode Reader Supporting Bar Code Symbology Types

1D / Linear Barcodes

2D / Matrix Barcodes Data Matrix PDF-417

Just Need a JAR?

If you just need a pre-built JAR file, you can always find compiled resources from the Maven release repository, including recent snapshot/nightly builds.

Download

Java Reader Download For Android Tablet

Download the latest release, or, retrieve the latest source code from Github.

The code is organized into several subdirectories, corresponding to modules, like core/ and javase/. Within each Java-based module, there is a pom.xml file for use with Apache Maven.

Configure

A few configuration steps are needed, depending on which modules you want to build. From the directory where you unpacked or checked out the source code:

android/

The Android SDK must be installed of course. Run the tool called sdkmanager and ensure that platform support for the Android release targeted by the app is installed. https://lustsitiena.tistory.com/25. At the time of this writing, that's platform level 22 / Android 5.1.

Note that release 3.4.0 and later requires Java 8, which requires targeting API level 24 or later. For a possible way to use it with earlier API levels, see https://github.com/zxing/zxing/wiki/Frequently-Asked-Questions#it-doesnt-work-with-java-7--no-interface-method-sortljavautilcomparator or simply use an earlier release.

Build

From the root of the project, run mvn install to compile, test and assemble all modules. Add -DskipTests to skip unit tests. Note that Android-related modules and apps will not be built unless ANDROID_HOME is set.

Compiled .jar files are found in submodules after this. For example, the compiled core/ code is available at core/target/core-x.y.z.jar.

android/

To build the Barcode Scanner Android app, a few slightly different steps are needed. From android/, run mvn package android:apk to produce a compile .apk file in target. Use android-x.y.z-aligned.apk.

Other users will not be able to build the signed release version, but the command is: mvn -Pandroid-release -Djarsigner.storepass=.. -Djarsigner.keypass=.. clean package android:apk.

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zxingorg/

Note that the deployable .war file will be produced in the target/ directory.

Run

Most components are libraries and are not run directly.

android/

1. Build android/
2. Connect your device via USB
3. If you already have the standard version of Barcode Scanner installed, uninstall it
4. Make sure your device is set to allow apps from untrusted sources
5. Run mvn android:deploy.

javase/

After building, in the javase/ directory, execute mvn -DskipTests package assembly:single to create a single JAR file containing all classes needed to run client command line apps, as target/javase-x.y.z-jar-with-dependencies.jar. Run CommandLineRunner with simply:

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Path syntax is different on Windows. Here and elsewhere you will need to use ';' rather than ':' to separate classpath elements, and likely need to use the ' path separator.

Maven

core/, javase/, android-integration and zxingorg can be used directly in a Maven-based project without any download or installation. Instead, add as dependencies from groupID com.google.zxing artifactIDs core, javase, android-integration or zxingorg:

Project Developers Only: Release Process

1. For the Barcode Scanner app (android), update parent version to be the upcoming release and commit locally
2. Likewise for android-integration, android-core, but both parent and version
3. Make sure CHANGES is up to date and everything is committed
4. Update the current milestone in Github as needed and close it
5. unset ANDROID_HOME so as to not release Android apps
6. mvn -s private-settings.xml clean release:clean release:prepare and optionally add -DreleaseVersion=x.y.z -DdevelopmentVersion=a.b.c-SNAPSHOT if the answer is not the one Maven guesses and you want to avoid repeating the answer
7. If all is well, mvn -Darguments='-Dgpg.passphrase=..' -s private-settings.xml release:perform
8. Log in to oss.sonatype.org and finish the release (http://central.sonatype.org/pages/releasing-the-deployment.html).
9. Update the release on Github
10. Announce the release on the mailing list
11. For the Barcode Scanner app (android), update parent version to be the new snapshot release and commit
12. Likewise for android-integration, android-core, but both parent and version
13. To immediately publish a next snapshot, mvn -s private-settings.xml clean deploy
14. To get the site ready, first go back to the tag, git checkout -f tags/zxing-x.y.z
15. mvn clean site
16. mvn site:stage site:deploy -pl .
17. git add docs
18. You may wish to git status to ensure that all the changes are in docs/ and that they make sense
19. git checkout master
20. git commit -m 'Update site for x.y.z'
21. git push origin master

Deploying zxing.appspot.com App Engine app

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After building with mvn package, deploy from target/zxing.appspot.com-x.y.z with: