Unable to find bufferedImage class in J2ME

[bindubindu685]

Using ZXing within a Java program is quite easy. First, you need an implementation of com.google.zxing.Reader. You might use an implementation that can detect all formats the library reads:

Reader reader = new MultiFormatReader();

Or, for example, if you knew you were only reading QR Codes, you might instantiate an implementation that only understands QR Codes. This is more efficient.

Reader reader = new QRCodeReader();

Next you need an image to decode. Readers read implementations of com.google.zxing.MonochromeBitmapSource, which are abstractions on top of various classes representing images, presenting them as a monochrome image to be decoded.

For example, an implementation exists for instances of java.awt.BufferedImage:

BufferedImage myImage = ...;
LuminanceSource source = new BufferedImageLuminanceSource(myImage);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

I am not getting "BufferedImage" class. I have to use an instance of BufferedImage calss to pass it to "BufferedImageLuminanceSource".

Also I am unable to include "java.awt.BufferedImage" class since it is available only on "stand alone applications"(swings and applets) and I am using J2ME.


Can anyone please help me out regarding this.

Thanks in advance.

[grahamhughes]

You're using the J2SE client code. You must use the J2ME client code.

Graham.

[bindubindu685]

You're using the J2SE client code. You must use the J2ME client code.

Graham.

ya i am using J2ME client code but i am getting BufferedImage class

[ingsaurabh]

then you might be using 3rd party classes that are providing BufferdImage bcoz j2me as such doesn't provide it

[grahamhughes]

ya i am using J2ME client code but i am getting BufferedImage class

In which class is the reference to BufferedImage?

You should only build the "core" and "j2me" components. You are building either "core/test" or "j2se", and you don't need to build these.

Follow the instructions here for "Run on your phone".

Graham.

[bindubindu685]

it refering to java.awt.BufferedImage but this is not available in j2me
so please let me know how resolve this problem

[grahamhughes]

There is no reference to the BufferedImage in the J2ME code.

You are trying to build the J2SE code.

Do this (from the "run on your phone" instructions):

* Download and install Sun's Java Wireless Toolkit 2.5.2

* At the top level of the project, edit build.properties to reference the location where you installed WTK.

* Download Proguard, and copy proguard.jar to the bin directory under the WTK 2.5.2 installation directory.

* Build core and then javame:

    cd core 
    ant 
    cd ../javame 
    ant

* Refer to instructions for your particular phone model to learn how to load this application onto your device

We cannot help you without more information.

Does the process for building ZXing (above) work?

Graham.