ZXing

How I set up ZXing

1. download ZXing file
2. Follow the directions in here under "Run" stop at "Run on Android".
   
   A test [URL] can be, in .../zxing-read-only, $ java -cp javase/javase.jar:core/core.jar com.google.zxing.client.j2se.CommandLineRunner http://www.idautomation.com/ucc_ean_128.jpeg
   http://www.idautomation.com/ucc_ean_128.jpeg (format: CODE_128, type: TEXT): Raw result: 81007123452112345678 Parsed result: 81007123452112345678 Also, there were 2 result points. Point 0: (12.5,26.0) Point 1: (167.5,26.0)
3. You should set up a new Android project by doing: File > New > Project > Select "Android Project" under Android > Next > Create project from existing source and navigate to the "android" folder of your downloaded ZXing file. Put a name. and a platform.
4. At this point, I got errors like this:
   
   The import com.google.zxing.BarcodeFormat cannot be resolved (at least in src > com.google.zxing.client.android > CaptureActivity.java)
   Here is the way to fix these errors, adapted from here.
   
   Right click on Project Name
   - Go to New -> Source Folder
   - For Folder name, call it "srccore"
   - Click on Finish
   
   Right click on "srccore"
   - Click on Import
   - Click on File System > Next
   - For "From directory:" type in [full path to]/zxing/core/src
   - Make sure the checkbox next to "src" is checked
   - Finish
   
   Go to Project -> Clean
5. Run it (might take a while), you should see the square moves around:
   
   
   
   
   
   
6. Done! Btw, if you want to resize your emulator.
   

I don't have a real phone, should look at this to fake a camera.

Old notes with things that didn't work

haoqili@stay-focused-hq:13:04:51:~/Desktop/6.857/proj/zxing-read-only$ cd core
haoqili@stay-focused-hq:13:04:52:~/Desktop/6.857/proj/zxing-read-only/core$ ant
Unable to locate tools.jar. Expected to find it in /usr/lib/jvm/java-6-openjdk/lib/tools.jar
Buildfile: /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build.xml

clean:

build:

init:

compile:
    [mkdir] Created dir: /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build
    [javac] Compiling 177 source files to /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build

BUILD FAILED
/home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build.xml:54: The following error occurred while executing this line:
/home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build.xml:37: Error running javac compiler

Total time: 1 second

http://ubuntuforums.org/archive/index.php/t-870670.html


haoqili@stay-focused-hq:13:12:51:~/Desktop/6.857/proj/zxing-read-only/core$ sudo update-alternatives --config java
[sudo] password for haoqili:
There is only one alternative in link group java: /usr/lib/jvm/java-6-openjdk/jre/bin/java
Nothing to configure.


http://www.webupd8.org/2010/10/sun-java-finally-uploaded-to-ubuntu.html

sudo apt-get update

sudo apt-get install sun-java6-jre

sudo apt-get install sun-java6-jdk




haoqili@stay-focused-hq:15:57:05:/usr/lib/jvm$ sudo update-alternatives --config java
There are 2 choices for the alternative java (providing /usr/bin/java).


  Selection    Path                                      Priority   Status
------------------------------------------------------------
* 0            /usr/lib/jvm/java-6-openjdk/jre/bin/java   1061      auto mode
  1            /usr/lib/jvm/java-6-openjdk/jre/bin/java   1061      manual mode
  2            /usr/lib/jvm/java-6-sun/jre/bin/java       63        manual mode


Press enter to keep the current choice[*], or type selection number: 2
update-alternatives: using /usr/lib/jvm/java-6-sun/jre/bin/java to provide /usr/bin/java (java) in manual mode.

haoqili@stay-focused-hq:15:23:34:~/Desktop/6.857/proj/zxing-read-only/core$ sudo update-java-alternatives -l

java-6-openjdk 1061 /usr/lib/jvm/java-6-openjdk

haoqili@stay-focused-hq:15:25:49:~/Desktop/6.857/proj/zxing-read-only/core$ sudo update-java-alternatives -l

[sudo] password for haoqili: 

java-6-openjdk 1061 /usr/lib/jvm/java-6-openjdk

java-6-sun 63 /usr/lib/jvm/java-6-sun

haoqili@stay-focused-hq:15:58:54:~/Desktop/6.857/proj/zxing-read-only/core$ ant

Buildfile: /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build.xml

clean:

   [delete] Deleting directory /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build

build:

init:

compile:

    [mkdir] Created dir: /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build

    [javac] Compiling 177 source files to /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build

      [jar] Building jar: /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/core.jar

BUILD SUCCESSFUL

Total time: 8 seconds

haoqili@stay-focused-hq:15:59:20:~/Desktop/6.857/proj/zxing-read-only/core$ cd ../javase

haoqili@stay-focused-hq:16:03:32:~/Desktop/6.857/proj/zxing-read-only/javase$ ls

build.xml  pom.xml  src

haoqili@stay-focused-hq:16:03:33:~/Desktop/6.857/proj/zxing-read-only/javase$ ant

Buildfile: /home/haoqili/Desktop/6.857/proj/zxing-read-only/javase/build.xml

init:

build:

    [mkdir] Created dir: /home/haoqili/Desktop/6.857/proj/zxing-read-only/javase/build

    [javac] Compiling 6 source files to /home/haoqili/Desktop/6.857/proj/zxing-read-only/javase/build

      [jar] Building jar: /home/haoqili/Desktop/6.857/proj/zxing-read-only/javase/javase.jar

BUILD SUCCESSFUL

Total time: 6 seconds

haoqili@stay-focused-hq:16:03:44:~/Desktop/6.857/proj/zxing-read-only/javase$ 

haoqili@stay-focused-hq:16:04:27:~/Desktop/6.857/proj/zxing-read-only$ java -cp javase/javase.jar:core/core.jar com.google.zxing.client.j2se.CommandLineRunner [URL]

Exception in thread "main" java.net.URISyntaxException: Illegal character in path at index 0: [URL]

at java.net.URI$Parser.fail(URI.java:2809)

at java.net.URI$Parser.checkChars(URI.java:2982)

at java.net.URI$Parser.parseHierarchical(URI.java:3066)

at java.net.URI$Parser.parse(URI.java:3024)

at java.net.URI.<init>(URI.java:578)

at com.google.zxing.client.j2se.CommandLineRunner.decodeOneArgument(CommandLineRunner.java:210)

at com.google.zxing.client.j2se.CommandLineRunner.main(CommandLineRunner.java:104)

haoqili@stay-focused-hq:16:04:49:~/Desktop/6.857/proj/zxing-read-only$ java -cp javase/javase.jar:core/core.jar com.google.zxing.client.j2se.CommandLineRunner http://www.idautomation.com/ucc_ean_128.jpeg

http://www.idautomation.com/ucc_ean_128.jpeg (format: CODE_128, type: TEXT):

Raw result:

81007123452112345678

Parsed result:

81007123452112345678

Also, there were 2 result points.

  Point 0: (12.5,26.0)

  Point 1: (167.5,26.0)

===========

Android

http://code.google.com/p/zxing/wiki/GetTheReader

http://code.google.com/p/zxing/downloads/detail?name=BarcodeScanner3.53.apk&can=2&q=

http://groups.google.com/group/zxing/browse_thread/thread/7095fb9a0c5c48fe?pli=1 same problem as message one

step 5 of http://knol.google.com/k/alec-go/modifying-the-android-barcode-scanner/2vd5zn6va2fqd/2#

[2011-04-23 16:45:51 - ZXing] ERROR: Unable to open class file /home/haoqili/workspace/ZXing/gen/com/google/zxing/client/android/R.java: No such file or directory

http://stackoverflow.com/questions/3796490/error-unable-to-open-class-file-r-java restarting eclipse fixed that

Then I run emulator, when I click on the scan barcode ap, goes black blank and goes to front page again.

===

Second (Android) part of: 

http://code.google.com/p/zxing/wiki/GettingStarted

http://www.cnblogs.com/sungod/archive/2011/02/28/1967137.html

android-home=/home/haoqili/Desktop/6.857/proj/android-sdk-linux_x86

proguard-jar=/home/haoqili/Desktop/6.857/proj/proguard4.6/lib/proguard.jar

haoqili@stay-focused-hq:17:39:53:~/Desktop/6.857/proj/zxing-read-only/core$ ant clean build-no-debug

Buildfile: /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build.xml

clean:

   [delete] Deleting directory /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build

   [delete] Deleting: /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/core.jar

clean:

build-no-debug:

init:

compile:

    [mkdir] Created dir: /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build

    [javac] Compiling 177 source files to /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/build

      [jar] Building jar: /home/haoqili/Desktop/6.857/proj/zxing-read-only/core/core.jar

BUILD SUCCESSFUL

Total time: 6 seconds

I copied the contents of android to workspace/ZXing, so I went there to "build android"

haoqili@stay-focused-hq:17:41:28:~/workspace/ZXing$ ant

Buildfile: /home/haoqili/workspace/ZXing/build.xml

BUILD FAILED

/home/haoqili/workspace/ZXing/build.xml:64: taskdef class com.android.ant.SetupTask cannot be found

 using the classloader AntClassLoader[]

Total time: 0 seconds

===

Looks like I shouldn't have moved it. 

Eck. Try again by building a project from the file (see top)

The scanner worked [insert pictures]

==
last step of Building android is stil bad

haoqili@stay-focused-hq:22:11:37:~/Desktop/6.857/proj/zxing-read-only/android$ ant
Buildfile: /home/haoqili/Desktop/6.857/proj/zxing-read-only/android/build.xml

BUILD FAILED
/home/haoqili/Desktop/6.857/proj/zxing-read-only/android/build.xml:64: taskdef class com.android.ant.SetupTask cannot be found
 using the classloader AntClassLoader[]

Total time: 0 seconds