Java 类com.google.zxing.qrcode.decoder.ErrorCorrectionLevel 实例源码

项目：mDL-ILP 文件：QRUtils.java

public static Bitmap getQR(final byte[] content, final int size) {
    final QRCodeWriter writer = new QRCodeWriter();
    try {
        final Map<EncodeHintType, Object> encodingHints = new HashMap<>();
        encodingHints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
        encodingHints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);

        final BitMatrix encoding = writer.encode(Utils.makeQR(content), BarcodeFormat.QR_CODE, size, size, encodingHints);
        final Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);

        for (int i = 0; i < size; i++) {
            for (int j = 0; j < size; j++) {
                bitmap.setPixel(i, j, encoding.get(i, j) ? COLOR_DARK : COLOR_LIGHT);
            }
        }

        return bitmap;
    } catch (WriterException e) {
        Log.e("QRUtils", "Failed to get QR code", e);
    }
    return null;
}

项目：IJPay 文件：ZxingKit.java

/**
 * Zxing图形码生成工具
 *
 * @param contents
 *            内容
 * @param barcodeFormat
 *            BarcodeFormat对象
 * @param format
 *            图片格式，可选[png,jpg,bmp]
 * @param width
 *            宽
 * @param height
 *            高
 * @param margin
 *            边框间距px
 * @param saveImgFilePath
 *            存储图片的完整位置，包含文件名
 * @return {boolean}
 */
public static boolean encode(String contents, BarcodeFormat barcodeFormat, Integer margin,
        ErrorCorrectionLevel errorLevel, String format, int width, int height, String saveImgFilePath) {
    Boolean bool = false;
    BufferedImage bufImg;
    Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();
    // 指定纠错等级
    hints.put(EncodeHintType.ERROR_CORRECTION, errorLevel);
    hints.put(EncodeHintType.MARGIN, margin);
    hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
    try {
        // contents = new String(contents.getBytes("UTF-8"), "ISO-8859-1");
        BitMatrix bitMatrix = new MultiFormatWriter().encode(contents, barcodeFormat, width, height, hints);
        MatrixToImageConfig config = new MatrixToImageConfig(0xFF000001, 0xFFFFFFFF);
        bufImg = MatrixToImageWriter.toBufferedImage(bitMatrix, config);
        bool = writeToFile(bufImg, format, saveImgFilePath);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return bool;
}

项目：framework 文件：QRCodeUtils.java

/**
 * 创建二维码
 *
 * @param size         二维码尺寸
 * @param content      二维码内容
 * @param logoPath     Logo地址
 * @param needCompress 是否压缩
 * @return
 * @throws Exception
 */
private static BufferedImage createImage(int size, String content, String logoPath, boolean needCompress) throws Exception {
    Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
    hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
    hints.put(EncodeHintType.MARGIN, 1);
    BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, size, size, hints);
    int width = bitMatrix.getWidth();
    int height = bitMatrix.getHeight();
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    for (int x = 0; x < width; x++) {
        for (int y = 0; y < height; y++) {
            image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000 : 0xFFFFFFFF);
        }
    }
    if (logoPath == null || "".equals(logoPath)) {
        return image;
    }
    // 插入图片
    QRCodeUtils.insertImage(size, image, logoPath, needCompress);
    return image;
}

项目：os 文件：MatrixToImageWriterEx.java

/**
 * 根据内容生成二维码数据
 * @param content 二维码文字内容[为了信息安全性，一般都要先进行数据加密]
 * @param width 二维码照片宽度
 * @param height 二维码照片高度
 * @return
 */
public static BitMatrix createQRCode(String content, int width, int height){
    Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();   
    //设置字符编码
       hints.put(EncodeHintType.CHARACTER_SET, "utf-8");  
       // 指定纠错等级
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
    hints.put(EncodeHintType.MARGIN, 1);
       BitMatrix matrix = null;  
       try {  
           matrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height, hints); 
       } catch (WriterException e) {  
           e.printStackTrace();  
       }

       return matrix;
}

项目：qrcode-utils 文件：QrcodeUtils.java

/**
 * 根据内容生成二维码数据
 *
 * @param content 二维码文字内容[为了信息安全性，一般都要先进行数据加密]
 * @param length  二维码图片宽度和高度
 */
private static BitMatrix createQrcodeMatrix(String content, int length) {
  Map<EncodeHintType, Object> hints = Maps.newEnumMap(EncodeHintType.class);
  // 设置字符编码
  hints.put(EncodeHintType.CHARACTER_SET, Charsets.UTF_8.name());
  // 指定纠错等级
  hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);

  try {
    return new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, length, length, hints);
  } catch (Exception e) {
    logger.warn("内容为：【" + content + "】的二维码生成失败！", e);
    return null;
  }

}

项目：weex-3d-map 文件：Encoder.java

private static int chooseMaskPattern(BitArray bits,
                                     ErrorCorrectionLevel ecLevel,
                                     Version version,
                                     ByteMatrix matrix) throws WriterException {

  int minPenalty = Integer.MAX_VALUE;  // Lower penalty is better.
  int bestMaskPattern = -1;
  // We try all mask patterns to choose the best one.
  for (int maskPattern = 0; maskPattern < QRCode.NUM_MASK_PATTERNS; maskPattern++) {
    MatrixUtil.buildMatrix(bits, ecLevel, version, maskPattern, matrix);
    int penalty = calculateMaskPenalty(matrix);
    if (penalty < minPenalty) {
      minPenalty = penalty;
      bestMaskPattern = maskPattern;
    }
  }
  return bestMaskPattern;
}

项目：weex-3d-map 文件：Encoder.java

private static Version chooseVersion(int numInputBits, ErrorCorrectionLevel ecLevel) throws WriterException {
  // In the following comments, we use numbers of Version 7-H.
  for (int versionNum = 1; versionNum <= 40; versionNum++) {
    Version version = Version.getVersionForNumber(versionNum);
    // numBytes = 196
    int numBytes = version.getTotalCodewords();
    // getNumECBytes = 130
    Version.ECBlocks ecBlocks = version.getECBlocksForLevel(ecLevel);
    int numEcBytes = ecBlocks.getTotalECCodewords();
    // getNumDataBytes = 196 - 130 = 66
    int numDataBytes = numBytes - numEcBytes;
    int totalInputBytes = (numInputBits + 7) / 8;
    if (numDataBytes >= totalInputBytes) {
      return version;
    }
  }
  throw new WriterException("Data too big");
}

项目：weex-3d-map 文件：MatrixUtil.java

static void makeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitArray bits)
    throws WriterException {
  if (!QRCode.isValidMaskPattern(maskPattern)) {
    throw new WriterException("Invalid mask pattern");
  }
  int typeInfo = (ecLevel.getBits() << 3) | maskPattern;
  bits.appendBits(typeInfo, 5);

  int bchCode = calculateBCHCode(typeInfo, TYPE_INFO_POLY);
  bits.appendBits(bchCode, 10);

  BitArray maskBits = new BitArray();
  maskBits.appendBits(TYPE_INFO_MASK_PATTERN, 15);
  bits.xor(maskBits);

  if (bits.getSize() != 15) {  // Just in case.
    throw new WriterException("should not happen but we got: " + bits.getSize());
  }
}

项目：QrCode 文件：Encoder.java

private static int chooseMaskPattern(BitArray bits,
                                     ErrorCorrectionLevel ecLevel,
                                     Version version,
                                     ByteMatrix matrix) throws WriterException {

  int minPenalty = Integer.MAX_VALUE;  // Lower penalty is better.
  int bestMaskPattern = -1;
  // We try all mask patterns to choose the best one.
  for (int maskPattern = 0; maskPattern < QRCode.NUM_MASK_PATTERNS; maskPattern++) {
    MatrixUtil.buildMatrix(bits, ecLevel, version, maskPattern, matrix);
    int penalty = calculateMaskPenalty(matrix);
    if (penalty < minPenalty) {
      minPenalty = penalty;
      bestMaskPattern = maskPattern;
    }
  }
  return bestMaskPattern;
}

项目：QrCode 文件：MatrixUtil.java

static void makeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitArray bits)
    throws WriterException {
  if (!QRCode.isValidMaskPattern(maskPattern)) {
    throw new WriterException("Invalid mask pattern");
  }
  int typeInfo = (ecLevel.getBits() << 3) | maskPattern;
  bits.appendBits(typeInfo, 5);

  int bchCode = calculateBCHCode(typeInfo, TYPE_INFO_POLY);
  bits.appendBits(bchCode, 10);

  BitArray maskBits = new BitArray();
  maskBits.appendBits(TYPE_INFO_MASK_PATTERN, 15);
  bits.xor(maskBits);

  if (bits.getSize() != 15) {  // Just in case.
    throw new WriterException("should not happen but we got: " + bits.getSize());
  }
}

项目：letv 文件：QRCodeWriter.java

public BitMatrix encode(String contents, BarcodeFormat format, int width, int height, Map<EncodeHintType, ?> hints) throws WriterException {
    if (contents.length() == 0) {
        throw new IllegalArgumentException("Found empty contents");
    } else if (format != BarcodeFormat.QR_CODE) {
        throw new IllegalArgumentException("Can only encode QR_CODE, but got " + format);
    } else if (width < 0 || height < 0) {
        throw new IllegalArgumentException("Requested dimensions are too small: " + width + 'x' + height);
    } else {
        ErrorCorrectionLevel errorCorrectionLevel = ErrorCorrectionLevel.L;
        int quietZone = 4;
        if (hints != null) {
            ErrorCorrectionLevel requestedECLevel = (ErrorCorrectionLevel) hints.get(EncodeHintType.ERROR_CORRECTION);
            if (requestedECLevel != null) {
                errorCorrectionLevel = requestedECLevel;
            }
            Integer quietZoneInt = (Integer) hints.get(EncodeHintType.MARGIN);
            if (quietZoneInt != null) {
                quietZone = quietZoneInt.intValue();
            }
        }
        return renderResult(Encoder.encode(contents, errorCorrectionLevel, hints), width, height, quietZone);
    }
}

项目：xmrwallet 文件：ReceiveFragment.java

public Bitmap generate(String text, int width, int height) {
    Map<EncodeHintType, Object> hints = new HashMap<>();
    hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
    try {
        BitMatrix bitMatrix = new QRCodeWriter().encode(text, BarcodeFormat.QR_CODE, width, height, hints);
        int[] pixels = new int[width * height];
        for (int i = 0; i < height; i++) {
            for (int j = 0; j < width; j++) {
                if (bitMatrix.get(j, i)) {
                    pixels[i * width + j] = 0x00000000;
                } else {
                    pixels[i * height + j] = 0xffffffff;
                }
            }
        }
        Bitmap bitmap = Bitmap.createBitmap(pixels, 0, width, width, height, Bitmap.Config.RGB_565);
        bitmap = addLogo(bitmap);
        return bitmap;
    } catch (WriterException e) {
        e.printStackTrace();
    }
    return null;
}

项目：Fetax-AI 文件：CodeUtil.java

private static BufferedImage createImage(String content, String imgPath,
        boolean needCompress) throws Exception {
    Hashtable hints = new Hashtable();
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
    hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
    hints.put(EncodeHintType.MARGIN, 1);
    BitMatrix bitMatrix = new MultiFormatWriter().encode(content,
            BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
    int width = bitMatrix.getWidth();
    int height = bitMatrix.getHeight();
    BufferedImage image = new BufferedImage(width, height,
            BufferedImage.TYPE_INT_RGB);
    for (int x = 0; x < width; x++) {
        for (int y = 0; y < height; y++) {
            image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000
                    : 0xFFFFFFFF);
        }
    }
    if (imgPath == null || "".equals(imgPath)) {
        return image;
    }
 // 插入图片
    CodeUtil.insertImage(image, imgPath, needCompress);
    return image;
}

项目：bicycleSharingServer 文件：QRCodeUtil.java

private static BufferedImage createImage(String content, String imgPath,
        boolean needCompress) throws Exception {
    Hashtable hints = new Hashtable();
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
    hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
    hints.put(EncodeHintType.MARGIN, 1);
    BitMatrix bitMatrix = new MultiFormatWriter().encode(content,
            BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
    int width = bitMatrix.getWidth();
    int height = bitMatrix.getHeight();
    BufferedImage image = new BufferedImage(width, height,
            BufferedImage.TYPE_INT_RGB);
    for (int x = 0; x < width; x++) {
        for (int y = 0; y < height; y++) {
            image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000
                    : 0xFFFFFFFF);
        }
    }
    if (imgPath == null || "".equals(imgPath)) {
        return image;
    }
    // 插入图片
    QRCodeUtil.insertImage(image, imgPath, needCompress);
    return image;
}

项目：JavaToolKit 文件：CreateQRCode.java

/**
 *
 * @param path 完整的路径包括文件名
 * @param width 图片宽
 * @param height 图片高
 * @param contents 内容
 */
public static void createImage(String path,int width,int height,String contents){
    String format = "png";
    //定义二维码的参数
    HashMap hints = new HashMap();
    hints.put(EncodeHintType.AZTEC_LAYERS, "utf-8");//设置编码
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);//设置容错等级： L M Q H
    hints.put(EncodeHintType.MARGIN,1);//设置边距

    //生成文件
    try {
        BitMatrix bitMatrix = new MultiFormatWriter().encode(contents, BarcodeFormat.QR_CODE, width, height,hints);
        Path file = new File(path).toPath();
        MatrixToImageWriter.writeToPath(bitMatrix, format, file);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

项目：boohee_v5.6 文件：MatrixUtil.java

static void makeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitArray bits)
        throws WriterException {
    if (QRCode.isValidMaskPattern(maskPattern)) {
        int typeInfo = (ecLevel.getBits() << 3) | maskPattern;
        bits.appendBits(typeInfo, 5);
        bits.appendBits(calculateBCHCode(typeInfo, TYPE_INFO_POLY), 10);
        BitArray maskBits = new BitArray();
        maskBits.appendBits(TYPE_INFO_MASK_PATTERN, 15);
        bits.xor(maskBits);
        if (bits.getSize() != 15) {
            throw new WriterException("should not happen but we got: " + bits.getSize());
        }
        return;
    }
    throw new WriterException("Invalid mask pattern");
}

项目：java-qrcode-terminal 文件：QRterminal.java

public static String getQr(String text) {
    String s = "生成二维码失败";
    int width = 40;
    int height = 40;
    // 用于设置QR二维码参数
    Hashtable<EncodeHintType, Object> qrParam = new Hashtable<EncodeHintType, Object>();
    // 设置QR二维码的纠错级别——这里选择最低L级别
    qrParam.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
    qrParam.put(EncodeHintType.CHARACTER_SET, "utf-8");
    try {
        BitMatrix bitMatrix = new MultiFormatWriter().encode(text, BarcodeFormat.QR_CODE, width, height, qrParam);
        s = toAscii(bitMatrix);
    } catch (WriterException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return s;
}

项目：phonk 文件：PMedia.java

public Bitmap generateQRCode(String text) {
    Bitmap bmp = null;

    Hashtable<EncodeHintType, ErrorCorrectionLevel> hintMap = new Hashtable<EncodeHintType, ErrorCorrectionLevel>();
    hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H); // H = 30% damage

    int size = 256;

    BitMatrix bitMatrix = null;
    try {
        bitMatrix = new QRCodeWriter().encode(text, BarcodeFormat.QR_CODE, size, size, hintMap);

        int width = bitMatrix.getWidth();
        bmp = Bitmap.createBitmap(width, width, Bitmap.Config.RGB_565);
        for (int x = 0; x < width; x++) {
            for (int y = 0; y < width; y++) {
                bmp.setPixel(y, x, bitMatrix.get(x, y) == true ? Color.BLACK : Color.WHITE);
            }
        }
    } catch (WriterException e) {
        e.printStackTrace();
    }

    return bmp;
}

项目：angit 文件：ZxingHelper.java

/**
 * 二维码编码
 * <p>
 * String imgPath2 = "target/zxing2.png";
 * String contents2 = "Hello Zxing!";
 * int width2 = 300, height2 = 300;
 * ZxingHelper.encode2(contents2, width2, height2, imgPath2);
 *
 * @param contents 内容
 * @param width    宽度
 * @param height   高度
 * @param imgPath  生成图片路径
 */
public static void encode2(String contents, int width, int height, String imgPath) {
    EnumMap<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
    // 指定纠错等级
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
    // 指定编码格式
    hints.put(EncodeHintType.CHARACTER_SET, "GBK");
    try {
        BitMatrix bitMatrix = new MultiFormatWriter().encode(contents,
            BarcodeFormat.QR_CODE, width, height, hints);

        MatrixToImageWriter
            .writeToPath(bitMatrix, "png", new File(imgPath).toPath());

    } catch (Exception e) {
        LOGGER.error("生成二维码错误", e);
    }
}

项目：CryptoPayAPI 文件：CryptoClient.java

/**
 * Method to get the JavaFX Image QR code for easy input of address
 * @param width width of the image
 * @param height height of the image
 * @return Java FX Image
 * @throws IOException Either when there is an encoding error or java's reserved memory is overwritten.
 * @throws WriterException When ZXING encounters an error.
 */
public Image getQR(int width, int height) throws IOException, WriterException{
    String charset = "UTF-8";
    Map hintMap = new HashMap();
    hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);

    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    BitMatrix matrix = new MultiFormatWriter().encode(new String(cryptoAddress.getBytes(charset), charset), BarcodeFormat.QR_CODE, width, height, hintMap);
    MatrixToImageWriter.writeToStream(matrix, "png", stream);
    stream.flush();

    byte[] data = stream.toByteArray();
    stream.close();

    return new Image(new ByteArrayInputStream(data));
}

项目：Tesseract-OCR-Scanner 文件：Encoder.java

private static int chooseMaskPattern(BitArray bits,
                                     ErrorCorrectionLevel ecLevel,
                                     Version version,
                                     ByteMatrix matrix) throws WriterException {

  int minPenalty = Integer.MAX_VALUE;  // Lower penalty is better.
  int bestMaskPattern = -1;
  // We try all mask patterns to choose the best one.
  for (int maskPattern = 0; maskPattern < QRCode.NUM_MASK_PATTERNS; maskPattern++) {
    MatrixUtil.buildMatrix(bits, ecLevel, version, maskPattern, matrix);
    int penalty = calculateMaskPenalty(matrix);
    if (penalty < minPenalty) {
      minPenalty = penalty;
      bestMaskPattern = maskPattern;
    }
  }
  return bestMaskPattern;
}

项目：Tesseract-OCR-Scanner 文件：MatrixUtil.java

static void makeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitArray bits)
    throws WriterException {
  if (!QRCode.isValidMaskPattern(maskPattern)) {
    throw new WriterException("Invalid mask pattern");
  }
  int typeInfo = (ecLevel.getBits() << 3) | maskPattern;
  bits.appendBits(typeInfo, 5);

  int bchCode = calculateBCHCode(typeInfo, TYPE_INFO_POLY);
  bits.appendBits(bchCode, 10);

  BitArray maskBits = new BitArray();
  maskBits.appendBits(TYPE_INFO_MASK_PATTERN, 15);
  bits.xor(maskBits);

  if (bits.getSize() != 15) {  // Just in case.
    throw new WriterException("should not happen but we got: " + bits.getSize());
  }
}

项目：digital-display-garden-iteration-2-spraguesanborn 文件：QRCodeMaker.java

public QRCodeMaker (List<String> beds) throws WriterException, IOException {
    String url;
    String bedPath;
    Map hintMap = new HashMap();
    hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);

    System.out.println(System.getProperty("user.dir"));

    System.out.println("About to create the directory");

    File imageDirectory = new File(imageDirectoryPath);
    imageDirectory.delete();
    imageDirectory.mkdir();

    System.out.println("Made the directory: " + imageDirectoryPath);

    for (String bed : beds){
        bedPath = imageDirectoryPath + bed + ".jpg";

        url = "http://174.138.66.146:9000/api/" + bed;

        createQRCode(url, bedPath, charset, hintMap, 500, 500);
    }
}

项目：wish-pay 文件：ZxingUtils.java

/**
 * 将内容contents生成长为width，宽为width的图片，图片路径由imgPath指定
 */
public static File getQRCodeImge(String contents, int width, int height, String imgPath) {
    try {
        Map<EncodeHintType, Object> hints = Maps.newHashMap();
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
        hints.put(EncodeHintType.CHARACTER_SET, "UTF8");

        BitMatrix bitMatrix = new MultiFormatWriter().encode(contents, BarcodeFormat.QR_CODE, width, height, hints);

        File imageFile = new File(imgPath);
        writeToFile(bitMatrix, "png", imageFile);

        return imageFile;

    } catch (Exception e) {
        log.error("create QR code error!", e);
        return null;
    }
}

项目：wish-pay 文件：ZxingUtils.java

/**
 * 将内容contents生成长为width，宽为width的图片,返回刘文静
 */
public static ServletOutputStream getQRCodeImge(String contents, int width, int height) throws IOException {
    ServletOutputStream stream = null;
    try {
        Map<EncodeHintType, Object> hints = Maps.newHashMap();
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
        hints.put(EncodeHintType.CHARACTER_SET, "UTF8");
        BitMatrix bitMatrix = new MultiFormatWriter().encode(contents, BarcodeFormat.QR_CODE, width, height, hints);
        MatrixToImageWriter.writeToStream(bitMatrix, "png", stream);
        return stream;
    } catch (Exception e) {
        log.error("create QR code error!", e);
        return null;
    } finally {
        if (stream != null) {
            stream.close();
        }
    }
}

项目：awe-awesomesky 文件：CodeUtil.java

private static BufferedImage createImage(String content, String imgPath,
        boolean needCompress) throws Exception {
    Hashtable hints = new Hashtable();
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
    hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
    hints.put(EncodeHintType.MARGIN, 1);
    BitMatrix bitMatrix = new MultiFormatWriter().encode(content,
            BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
    int width = bitMatrix.getWidth();
    int height = bitMatrix.getHeight();
    BufferedImage image = new BufferedImage(width, height,
            BufferedImage.TYPE_INT_RGB);
    for (int x = 0; x < width; x++) {
        for (int y = 0; y < height; y++) {
            image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000
                    : 0xFFFFFFFF);
        }
    }
    if (imgPath == null || "".equals(imgPath)) {
        return image;
    }
 // 插入图片
    CodeUtil.insertImage(image, imgPath, needCompress);
    return image;
}

项目：zxing_qrcode_demo 文件：EncodingHandler.java

public static Bitmap createQRCode(String content, int widthAndHeight) {
    if (TextUtils.isEmpty(content)) return null;
    try {
        Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        //Fault tolerance level. MAX
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
        //Set the width of the blank margin.
        hints.put(EncodeHintType.MARGIN, 0);
        BitMatrix matrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, widthAndHeight, widthAndHeight);

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

        for (int y = 0; y < height; y++) {
            for (int x = 0; x < width; x++) {
                if (matrix.get(x, y)) {
                    pixels[y * width + x] = 0xff000000;
                }
            }
        }
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);

        return bitmap;
    } catch (WriterException e) {
        e.printStackTrace();
    }
    return null;
}

项目：QrCodeScanner 文件：Encoder.java

private static int chooseMaskPattern(BitArray bits,
                                     ErrorCorrectionLevel ecLevel,
                                     Version version,
                                     ByteMatrix matrix) throws WriterException {

  int minPenalty = Integer.MAX_VALUE;  // Lower penalty is better.
  int bestMaskPattern = -1;
  // We try all mask patterns to choose the best one.
  for (int maskPattern = 0; maskPattern < QRCode.NUM_MASK_PATTERNS; maskPattern++) {
    MatrixUtil.buildMatrix(bits, ecLevel, version, maskPattern, matrix);
    int penalty = calculateMaskPenalty(matrix);
    if (penalty < minPenalty) {
      minPenalty = penalty;
      bestMaskPattern = maskPattern;
    }
  }
  return bestMaskPattern;
}

项目：QrCodeScanner 文件：MatrixUtil.java

static void makeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitArray bits)
    throws WriterException {
  if (!QRCode.isValidMaskPattern(maskPattern)) {
    throw new WriterException("Invalid mask pattern");
  }
  int typeInfo = (ecLevel.getBits() << 3) | maskPattern;
  bits.appendBits(typeInfo, 5);

  int bchCode = calculateBCHCode(typeInfo, TYPE_INFO_POLY);
  bits.appendBits(bchCode, 10);

  BitArray maskBits = new BitArray();
  maskBits.appendBits(TYPE_INFO_MASK_PATTERN, 15);
  bits.xor(maskBits);

  if (bits.getSize() != 15) {  // Just in case.
    throw new WriterException("should not happen but we got: " + bits.getSize());
  }
}

项目：QrModule 文件：DemoGeneratorActivity.java

@SuppressLint("SetTextI18n")
private void quickEdit(boolean clear) {
    mEdtContent.setText(clear ? "" : "https://github.com/Ydcool/QrModule");
    mEdtSize.setText(clear ? "" : "400");
    mEdtMargin.setText(clear ? "" : "2");
    mEdtColorR.setText(clear ? "" : "65");
    mEdtColorG.setText(clear ? "" : "82");
    mEdtColorB.setText(clear ? "" : "172");
    mEdtColorBgR.setText(clear ? "" : "233");
    mEdtColorBgG.setText(clear ? "" : "233");
    mEdtColorBgB.setText(clear ? "" : "233");

    mSpinnerEcc.setSelection(ErrorCorrectionLevel.H.ordinal(), true);

    mOverlayEnabled = !clear;
    mTbOverlay.setChecked(!clear);

    mEdtOverlaySize.setText(clear ? "" : "100");
    mEdtOverlayAplha.setText(clear ? "" : "255");

    mXfermode = PorterDuff.Mode.SRC_ATOP;
    mSpinnerXfermode.setSelection(PorterDuff.Mode.SRC_ATOP.ordinal(), true);

    if (clear)
        mImgQrGenerated.setImageResource(R.drawable.ic_default_qr);
}

项目：jfinal-plus 文件：ZxingKit.java

/**
     * Zxing图形码生成工具
     *
     * @param contents        内容
     * @param barcodeFormat   BarcodeFormat对象
     * @param format          图片格式，可选[png,jpg,bmp]
     * @param width           宽
     * @param height          高
     * @param margin          边框间距px
     * @param saveImgFilePath 存储图片的完整位置，包含文件名
     * @return
     */
    public Boolean encode(String contents, BarcodeFormat barcodeFormat, Integer margin, ErrorCorrectionLevel errorLevel, String format, int width, int height, String saveImgFilePath) {
        Boolean bool;
        BufferedImage bufImg;
        Map<EncodeHintType, Object> hints = new HashMap<>();
        // 指定纠错等级
        hints.put(EncodeHintType.ERROR_CORRECTION, errorLevel);
        hints.put(EncodeHintType.MARGIN, margin);
        hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
        try {
//            contents = new String(contents.getBytes("UTF-8"), "ISO-8859-1");
            BitMatrix bitMatrix = new MultiFormatWriter().encode(contents, barcodeFormat, width, height, hints);
            MatrixToImageConfig config = new MatrixToImageConfig(0xFF000001, 0xFFFFFFFF);
            bufImg = MatrixToImageWriter.toBufferedImage(bitMatrix, config);
            bool = this.writeToFile(bufImg, format, saveImgFilePath);
        } catch (Throwable t) {
            log.error("encode-ex:{}", t);
            throw Throwables.propagate(t);
        }
        return bool;
    }

项目：PortraitZXing 文件：Encoder.java

private static int chooseMaskPattern(BitArray bits,
                                     ErrorCorrectionLevel ecLevel,
                                     Version version,
                                     ByteMatrix matrix) throws WriterException {

  int minPenalty = Integer.MAX_VALUE;  // Lower penalty is better.
  int bestMaskPattern = -1;
  // We try all mask patterns to choose the best one.
  for (int maskPattern = 0; maskPattern < QRCode.NUM_MASK_PATTERNS; maskPattern++) {
    MatrixUtil.buildMatrix(bits, ecLevel, version, maskPattern, matrix);
    int penalty = calculateMaskPenalty(matrix);
    if (penalty < minPenalty) {
      minPenalty = penalty;
      bestMaskPattern = maskPattern;
    }
  }
  return bestMaskPattern;
}

项目：sres-app 文件：Encoder.java

private static Version chooseVersion(int numInputBits, ErrorCorrectionLevel ecLevel) throws WriterException {
  // In the following comments, we use numbers of Version 7-H.
  for (int versionNum = 1; versionNum <= 40; versionNum++) {
    Version version = Version.getVersionForNumber(versionNum);
    // numBytes = 196
    int numBytes = version.getTotalCodewords();
    // getNumECBytes = 130
    Version.ECBlocks ecBlocks = version.getECBlocksForLevel(ecLevel);
    int numEcBytes = ecBlocks.getTotalECCodewords();
    // getNumDataBytes = 196 - 130 = 66
    int numDataBytes = numBytes - numEcBytes;
    int totalInputBytes = (numInputBits + 7) / 8;
    if (numDataBytes >= totalInputBytes) {
      return version;
    }
  }
  throw new WriterException("Data too big");
}

项目：PortraitZXing 文件：Encoder.java

private static Version chooseVersion(int numInputBits, ErrorCorrectionLevel ecLevel) throws WriterException {
  // In the following comments, we use numbers of Version 7-H.
  for (int versionNum = 1; versionNum <= 40; versionNum++) {
    Version version = Version.getVersionForNumber(versionNum);
    // numBytes = 196
    int numBytes = version.getTotalCodewords();
    // getNumECBytes = 130
    Version.ECBlocks ecBlocks = version.getECBlocksForLevel(ecLevel);
    int numEcBytes = ecBlocks.getTotalECCodewords();
    // getNumDataBytes = 196 - 130 = 66
    int numDataBytes = numBytes - numEcBytes;
    int totalInputBytes = (numInputBits + 7) / 8;
    if (numDataBytes >= totalInputBytes) {
      return version;
    }
  }
  throw new WriterException("Data too big");
}

项目：PortraitZXing 文件：MatrixUtil.java

static void makeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitArray bits)
    throws WriterException {
  if (!QRCode.isValidMaskPattern(maskPattern)) {
    throw new WriterException("Invalid mask pattern");
  }
  int typeInfo = (ecLevel.getBits() << 3) | maskPattern;
  bits.appendBits(typeInfo, 5);

  int bchCode = calculateBCHCode(typeInfo, TYPE_INFO_POLY);
  bits.appendBits(bchCode, 10);

  BitArray maskBits = new BitArray();
  maskBits.appendBits(TYPE_INFO_MASK_PATTERN, 15);
  bits.xor(maskBits);

  if (bits.getSize() != 15) {  // Just in case.
    throw new WriterException("should not happen but we got: " + bits.getSize());
  }
}

项目：sres-app 文件：MatrixUtil.java

static void makeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitArray bits)
    throws WriterException {
  if (!QRCode.isValidMaskPattern(maskPattern)) {
    throw new WriterException("Invalid mask pattern");
  }
  int typeInfo = (ecLevel.getBits() << 3) | maskPattern;
  bits.appendBits(typeInfo, 5);

  int bchCode = calculateBCHCode(typeInfo, TYPE_INFO_POLY);
  bits.appendBits(bchCode, 10);

  BitArray maskBits = new BitArray();
  maskBits.appendBits(TYPE_INFO_MASK_PATTERN, 15);
  bits.xor(maskBits);

  if (bits.getSize() != 15) {  // Just in case.
    throw new WriterException("should not happen but we got: " + bits.getSize());
  }
}

项目：alimama 文件：QRCodeUtil.java

/**
 * 生成二维码
 * @param content   源内容
 * @param imgPath   生成二维码保存的路径
 * @param needCompress  是否要压缩
 * @return      返回二维码图片
 * @throws Exception
 */
private static BufferedImage createImage(String content, String imgPath, boolean needCompress) throws Exception {
    Hashtable hints = new Hashtable();
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
    hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
    hints.put(EncodeHintType.MARGIN, 1);
    BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE,
            hints);
    int width = bitMatrix.getWidth();
    int height = bitMatrix.getHeight();
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    for (int x = 0; x < width; x++) {
        for (int y = 0; y < height; y++) {
            image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000 : 0xFFFFFFFF);
        }
    }
    if (imgPath == null || "".equals(imgPath)) {
        return image;
    }
    // 插入图片
    QRCodeUtil.insertImage(image, imgPath, needCompress);
    return image;
}

项目：TenguChat 文件：BarcodeProvider.java

public static Bitmap create2dBarcodeBitmap(String input, int size) {
    try {
        final QRCodeWriter barcodeWriter = new QRCodeWriter();
        final Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
        final BitMatrix result = barcodeWriter.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.WHITE;
            }
        }
        final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
        return bitmap;
    } catch (final Exception e) {
        e.printStackTrace();
        return null;
    }
}

项目：ZXing-Orient 文件：Encoder.java

private static int chooseMaskPattern(BitArray bits,
                                     ErrorCorrectionLevel ecLevel,
                                     Version version,
                                     ByteMatrix matrix) throws WriterException {

  int minPenalty = Integer.MAX_VALUE;  // Lower penalty is better.
  int bestMaskPattern = -1;
  // We try all mask patterns to choose the best one.
  for (int maskPattern = 0; maskPattern < QRCode.NUM_MASK_PATTERNS; maskPattern++) {
    MatrixUtil.buildMatrix(bits, ecLevel, version, maskPattern, matrix);
    int penalty = calculateMaskPenalty(matrix);
    if (penalty < minPenalty) {
      minPenalty = penalty;
      bestMaskPattern = maskPattern;
    }
  }
  return bestMaskPattern;
}

项目：ZXing-Orient 文件：Encoder.java

private static Version chooseVersion(int numInputBits, ErrorCorrectionLevel ecLevel) throws WriterException {
  // In the following comments, we use numbers of Version 7-H.
  for (int versionNum = 1; versionNum <= 40; versionNum++) {
    Version version = Version.getVersionForNumber(versionNum);
    // numBytes = 196
    int numBytes = version.getTotalCodewords();
    // getNumECBytes = 130
    Version.ECBlocks ecBlocks = version.getECBlocksForLevel(ecLevel);
    int numEcBytes = ecBlocks.getTotalECCodewords();
    // getNumDataBytes = 196 - 130 = 66
    int numDataBytes = numBytes - numEcBytes;
    int totalInputBytes = (numInputBits + 7) / 8;
    if (numDataBytes >= totalInputBytes) {
      return version;
    }
  }
  throw new WriterException("Data too big");
}