Android Using ZXing Generate QR Code

Question

I was having some problem when trying to generate QR code in Android Programming. Here is the Tutorial I followed. When my generate button on click, I am calling this method

Answer 1

public static int white = 0xFFFFFFFF;
public static int black = 0xFF000000;
public final static int WIDTH = 500;


try
    {
        Bitmap bmp =  encodeAsBitmap("Life is a bitch");
        imgView.setImageBitmap(bmp);
    } catch (Exception e) {
        e.printStackTrace();
    }


Bitmap encodeAsBitmap(String str) throws WriterException {
    BitMatrix result;
    Bitmap bitmap=null;
    try
    {
        result = new MultiFormatWriter().encode(str,
                BarcodeFormat.QR_CODE, WIDTH, WIDTH, null);

        int w = result.getWidth();
        int h = result.getHeight();
        int[] pixels = new int[w * h];
        for (int y = 0; y < h; y++) {
            int offset = y * w;
            for (int x = 0; x < w; x++) {
                pixels[offset + x] = result.get(x, y) ? black:white;
            }
        }
        bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, WIDTH, 0, 0, w, h);
    } catch (Exception iae) {
        iae.printStackTrace();
        return null;
    }
    return bitmap;
}