使用zxing库的Android QR代码生成不起作用

Question

Hi I am developing small android application in which I want to include Qr code functionality. I downloaded zxing-2.1 and with the help of android project inside it and core.jar i create android library for android project. I created one android project and include that library into my android project.

But when i tried to create one Qr code it gives me following error:

// I tried to generate Qr code in following ways.
ImageView imageView = (ImageView) findViewById(R.id.qr_imageView);
    String qrData = "nilkash";
    int qrCodeDimention = 500;

    QRCodeEncoder qrCodeEncoder = new QRCodeEncoder(qrData, null,
            Contents.Type.TEXT, BarcodeFormat.QR_CODE.toString(), qrCodeDimention);

    try {
        Bitmap bitmap = qrCodeEncoder.encodeAsBitmap();
        imageView.setImageBitmap(bitmap);
    } catch (WriterException e) {
        e.printStackTrace();
    }

But It not recognizing QRCodeEncoder class. What i am doing wrong? Need help to generate Qr-codes with zxing library. Thank you.

Answer 1

You didn't put core.jar in your project's libs/ folder. This is nothing to do with the library.

EDIT: Oops, no, QRCodeEncoder is actually a class in android/ , my fault. It won't help to use core.jar . The problem is still of course that you're trying to use a class without making it accessible to your project. This is not a library class though, but part of the app. You can reuse the source for this class in your app though, including copying it if that's easiest.

Answer 2

您可以在以下链接中找到core.jar http://repo1.maven.org/maven2/com/google/zxing/core/2.2/

Answer 3

QRCodeEncoder and Contents can be found here:

http://www.mysamplecode.com/2012/09/android-generate-qr-code-using-zxing.html