protected Bitmap createQrCodeBitmap(String input, int size) {
   Log.d(Config.LOGTAG, "qr code requested size: " + size);
   try {
     final QRCodeWriter QR_CODE_WRITER = new QRCodeWriter();
     final Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
     hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
     final BitMatrix result =
         QR_CODE_WRITER.encode(input, BarcodeFormat.QR_CODE, size, size, hints);
     final int width = result.getWidth();
     final int height = result.getHeight();
     final int[] pixels = new int[width * height];
     for (int y = 0; y < height; y++) {
       final int offset = y * width;
       for (int x = 0; x < width; x++) {
         pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.TRANSPARENT;
       }
     }
     final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
     Log.d(Config.LOGTAG, "output size: " + width + "x" + height);
     bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
     return bitmap;
   } catch (final WriterException e) {
     return null;
   }
 }
Example #2
0
  /*
   * create QR code with overlay
   */
  public static void createQRCode(
      String qrCodeData,
      String outputFilePath,
      String overlayFilePath,
      String charset,
      Map<EncodeHintType, ErrorCorrectionLevel> hintMap,
      int qrCodeheight,
      int qrCodewidth)
      throws WriterException, IOException {

    // create QR code <BufferedImage>
    QRCodeWriter qrWriter = new QRCodeWriter();
    BitMatrix matrix =
        qrWriter.encode(qrCodeData, BarcodeFormat.QR_CODE, qrCodewidth, qrCodeheight, hintMap);
    BufferedImage image = MatrixToImageWriter.toBufferedImage(matrix);

    // read overlay image
    BufferedImage overlay = ImageIO.read(new File(overlayFilePath));

    // Draw the new image
    int deltaHeight = image.getHeight() - overlay.getHeight();
    int deltaWidth = image.getWidth() - overlay.getWidth();

    BufferedImage combined =
        new BufferedImage(qrCodeheight, qrCodewidth, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = (Graphics2D) combined.getGraphics();
    g.drawImage(image, 0, 0, null);
    g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1f));
    g.drawImage(overlay, (int) Math.round(deltaWidth / 2), (int) Math.round(deltaHeight / 2), null);

    ImageIO.write(combined, "PNG", new File(outputFilePath));
  }
Example #3
0
  public BufferedImage getQRCode(String codeText, Integer size) {
    try {
      Hashtable<EncodeHintType, ErrorCorrectionLevel> hintMap = new Hashtable<>();
      hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
      QRCodeWriter qrCodeWriter = new QRCodeWriter();
      byteMatrix = qrCodeWriter.encode(codeText, BarcodeFormat.QR_CODE, size, size, hintMap);
      int imageWidth = byteMatrix.getWidth();
      image = new BufferedImage(imageWidth, imageWidth, BufferedImage.TYPE_INT_RGB);
      image.createGraphics();

      Graphics2D graphics = (Graphics2D) image.getGraphics();
      graphics.setColor(Color.WHITE);
      graphics.fillRect(0, 0, imageWidth, imageWidth);
      graphics.setColor(Color.BLACK);

      for (int i = 0; i < imageWidth; i++) {
        for (int j = 0; j < imageWidth; j++) {
          if (byteMatrix.get(i, j)) {
            graphics.fillRect(i, j, 1, 1);
          }
        }
      }
      return image;
    } catch (WriterException e) {
      return null;
    }
  }
Example #4
0
  private List<BufferedImage> exportSplitCompress(String s) throws IOException, WriterException {
    final QRCodeWriter writer = new QRCodeWriter();
    final int multiple = 1;
    final Hashtable hints = new Hashtable();
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);

    final Compression comp = new CompressionZlib();
    final byte data[] = comp.compress(s.getBytes("UTF-8"));

    final List<BufferedImage> result = new ArrayList<BufferedImage>();

    final List<byte[]> blocs = new ArrayList<byte[]>();
    for (int i = 0; i < 4; i++) {
      blocs.add(getSplited(data, i, 4));
    }

    blocs.add(xor(blocs));

    for (byte d[] : blocs) {
      // Encoder.DEFAULT_BYTE_MODE_ENCODING
      final BitMatrix bit =
          writer.encode(new String(d, "ISO-8859-1"), BarcodeFormat.QR_CODE, multiple);
      result.add(MatrixToImageWriter.toBufferedImage(bit));
    }

    return Collections.unmodifiableList(result);
  }
Example #5
0
 private List<BufferedImage> exportFlashcodeSimple(String s) throws IOException, WriterException {
   final QRCodeWriter writer = new QRCodeWriter();
   final int multiple = 1;
   final Hashtable hints = new Hashtable();
   hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
   final BitMatrix bit = writer.encode(s, BarcodeFormat.QR_CODE, multiple);
   final BufferedImage im = MatrixToImageWriter.toBufferedImage(bit);
   return Arrays.asList(im);
 }
 public static Bitmap generate(String data) throws WriterException {
   Bitmap bmp;
   QRCodeWriter writer = new QRCodeWriter();
   BitMatrix bitMatrix = writer.encode(data, BarcodeFormat.QR_CODE, 512, 512);
   int width = bitMatrix.getWidth();
   int height = bitMatrix.getHeight();
   bmp = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
   for (int x = 0; x < width; x++) {
     for (int y = 0; y < height; y++) {
       bmp.setPixel(x, y, bitMatrix.get(x, y) ? Color.BLACK : Color.WHITE);
     }
   }
   return bmp;
 }
  private Bitmap createBitmap(String content, final int size) {
    final Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
    hints.put(EncodeHintType.MARGIN, 0);
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
    BitMatrix result;
    try {
      result = sQRCodeWriter.encode(content, BarcodeFormat.QR_CODE, size, size, hints);
    } catch (WriterException ex) {
      mLogger.warn("qr encoder failed: " + ex.toString());
      return null;
    }

    final int width = result.getWidth();
    final int height = result.getHeight();
    final int[] pixels = new int[width * height];

    for (int y = 0; y < height; y++) {
      final int offset = y * width;
      for (int x = 0; x < width; x++) {
        pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.TRANSPARENT;
      }
    }

    final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);

    return bitmap;
  }
Example #8
0
  public static Bitmap bitmap(@Nonnull final String content, final int size) {
    try {
      final Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
      hints.put(EncodeHintType.MARGIN, 0);
      hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
      final BitMatrix result =
          QR_CODE_WRITER.encode(content, BarcodeFormat.QR_CODE, size, size, hints);

      final int width = result.getWidth();
      final int height = result.getHeight();
      final int[] pixels = new int[width * height];

      for (int y = 0; y < height; y++) {
        final int offset = y * width;
        for (int x = 0; x < width; x++) {
          pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.TRANSPARENT;
        }
      }

      final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
      bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
      return bitmap;
    } catch (final WriterException x) {
      log.info("problem creating qr code", x);
      return null;
    }
  }
Example #9
0
  private List<BufferedImage> exportFlashcodeCompress(String s)
      throws IOException, WriterException {
    final QRCodeWriter writer = new QRCodeWriter();
    final int multiple = 1;
    final Hashtable hints = new Hashtable();
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);

    final Compression comp = new CompressionZlib();
    final byte data[] = comp.compress(s.getBytes("UTF-8"));

    // Encoder.DEFAULT_BYTE_MODE_ENCODING
    final BitMatrix bit =
        writer.encode(new String(data, "ISO-8859-1"), BarcodeFormat.QR_CODE, multiple);
    final BufferedImage im = MatrixToImageWriter.toBufferedImage(bit);
    return Arrays.asList(im);
  }
 public static int[] generateQR(String text, int dimension) {
   QRCodeWriter qrCodeWriter = new QRCodeWriter();
   BitMatrix matrix = null;
   try {
     matrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, dimension, dimension);
   } catch (WriterException e) {
     e.printStackTrace();
   }
   int[] pixels = new int[dimension * dimension];
   for (int y = 0; y < dimension; y++) {
     int offset = y * dimension;
     for (int x = 0; x < dimension; x++) {
       if (matrix.get(x, y)) pixels[offset + x] = Color.BLACK;
       else pixels[offset + x] = Color.WHITE;
     }
   }
   return pixels;
 }
  // 生成QR图
  private void createImage() {
    try {
      // 需要引入core包
      QRCodeWriter writer = new QRCodeWriter();

      String text = RQcode;

      Log.i(TAG, "生成的文本:" + text);
      if (text == null || "".equals(text) || text.length() < 1) {
        return;
      }

      // 把输入的文本转为二维码
      BitMatrix martix = writer.encode(text, BarcodeFormat.QR_CODE, QR_WIDTH, QR_HEIGHT);

      System.out.println("w:" + martix.getWidth() + "h:" + martix.getHeight());

      Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();
      hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
      BitMatrix bitMatrix =
          new QRCodeWriter().encode(text, BarcodeFormat.QR_CODE, QR_WIDTH, QR_HEIGHT, hints);
      int[] pixels = new int[QR_WIDTH * QR_HEIGHT];
      for (int y = 0; y < QR_HEIGHT; y++) {
        for (int x = 0; x < QR_WIDTH; x++) {
          if (bitMatrix.get(x, y)) {
            pixels[y * QR_WIDTH + x] = 0xff000000;
          } else {
            pixels[y * QR_WIDTH + x] = 0xffffffff;
          }
        }
      }

      barcodeBitmap = Bitmap.createBitmap(QR_WIDTH, QR_HEIGHT, Bitmap.Config.ARGB_8888);

      barcodeBitmap.setPixels(pixels, 0, QR_WIDTH, 0, 0, QR_WIDTH, QR_HEIGHT);
      imgOutput.setImageBitmap(barcodeBitmap);

    } catch (WriterException e) {
      e.printStackTrace();
    }
  }
  private Bitmap encodeString(String input) throws WriterException {
    BarcodeFormat QR_CODE = BarcodeFormat.QR_CODE;
    //      byte[] b = input.getBytes();
    //      //convert the byte array into a UTF-8 string
    //      String data = "";
    //      try {
    //          data = new String(b, "ISO-8859-1");
    //      }
    //      catch (UnsupportedEncodingException e) {
    //       //the program shouldn't be able to get here
    //       Log.i("The message", "cannot convert to ISO");
    //      }
    Hashtable<EncodeHintType, Object> hints = null;
    String encoding = input;
    Log.i("Encoding", encoding);

    if (encoding != null) {
      hints = new Hashtable<EncodeHintType, Object>(2);
      hints.put(EncodeHintType.CHARACTER_SET, encoding);
    }
    QRCodeWriter writer = new QRCodeWriter();
    BitMatrix result = writer.encode(input, QR_CODE, 300, 300, hints);
    Log.i("Result", result.toString());

    int width = result.getWidth();
    int height = result.getHeight();
    int[] pixels = new int[width * height];
    Log.i("Result", pixels.toString());

    // All are 0, or black, by default
    for (int y = 0; y < height; y++) {
      int offset = y * width;
      for (int x = 0; x < width; x++) {
        pixels[offset + x] = result.get(x, y) ? BLACK : WHITE;
      }
    }

    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
  }