Java 类com.google.zxing.WriterException 实例源码

项目：GitHub 文件：EncodingHandler.java

public static Bitmap createQRCode(String str,int widthAndHeight) throws WriterException {
    Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();  
       hints.put(EncodeHintType.CHARACTER_SET, "utf-8"); 
    BitMatrix matrix = new MultiFormatWriter().encode(str,
            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] = BLACK;
            }
        }
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height,
            Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
}

项目：GitHub 文件：AboutActivity.java

/**显示二维码
 */
protected void setQRCode() {
    runThread(TAG + "setQRCode", new Runnable() {

        @Override
        public void run() {

            try {
                qRCodeBitmap = EncodingHandler.createQRCode(Constant.APP_DOWNLOAD_WEBSITE
                        , (int) (2 * getResources().getDimension(R.dimen.qrcode_size)));
            } catch (WriterException e) {
                e.printStackTrace();
                Log.e(TAG, "initData  try {Bitmap qrcode = EncodingHandler.createQRCode(contactJson, ivContactQRCodeCode.getWidth());" +
                        " >> } catch (WriterException e) {" + e.getMessage());
            }

            runUiThread(new Runnable() {
                @Override
                public void run() {
                    ivAboutQRCode.setImageBitmap(qRCodeBitmap);
                }
            });     
        }
    });
}

项目：GitHub 文件：EncodingHandler.java

public static Bitmap createQRCode(String str,int widthAndHeight) throws WriterException {
    Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();  
       hints.put(EncodeHintType.CHARACTER_SET, "utf-8"); 
    BitMatrix matrix = new MultiFormatWriter().encode(str,
            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] = BLACK;
            }
        }
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height,
            Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
}

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：keepass2android 文件：QRCodeEncoder.java

private void encodeFromTextExtras(Intent intent) throws WriterException {
  // Notice: Google Maps shares both URL and details in one text, bummer!
  String theContents = ContactEncoder.trim(intent.getStringExtra(Intent.EXTRA_TEXT));
  if (theContents == null) {
    theContents = ContactEncoder.trim(intent.getStringExtra("android.intent.extra.HTML_TEXT"));
    // Intent.EXTRA_HTML_TEXT
    if (theContents == null) {
      theContents = ContactEncoder.trim(intent.getStringExtra(Intent.EXTRA_SUBJECT));
      if (theContents == null) {
        String[] emails = intent.getStringArrayExtra(Intent.EXTRA_EMAIL);
        if (emails != null) {
          theContents = ContactEncoder.trim(emails[0]);
        } else {
          theContents = "?";
        }
      }
    }
  }

  // Trim text to avoid URL breaking.
  if (theContents == null || theContents.isEmpty()) {
    throw new WriterException("Empty EXTRA_TEXT");
  }
  contents = theContents;
  // We only do QR code.
  format = BarcodeFormat.QR_CODE;
  if (intent.hasExtra(Intent.EXTRA_SUBJECT)) {
    displayContents = intent.getStringExtra(Intent.EXTRA_SUBJECT);
  } else if (intent.hasExtra(Intent.EXTRA_TITLE)) {
    displayContents = intent.getStringExtra(Intent.EXTRA_TITLE);
  } else {
    displayContents = contents;
  }
  title = activity.getString(R.string.contents_text);
}

项目：keepass2android 文件：QRActivity.java

private void updateQrCode(String qrData) {
    DisplayMetrics displayMetrics = new DisplayMetrics();
    WindowManager wm = (WindowManager) getActivity().getSystemService(Context.WINDOW_SERVICE); // the results will be higher than using the activity context object or the getWindowManager() shortcut
    wm.getDefaultDisplay().getMetrics(displayMetrics);
    int screenWidth = displayMetrics.widthPixels;
    int screenHeight = displayMetrics.heightPixels;

    int qrCodeDimension = screenWidth > screenHeight ? screenHeight : screenWidth;
    QRCodeEncoder qrCodeEncoder = new QRCodeEncoder(qrData, null,
            Contents.Type.TEXT, BarcodeFormat.QR_CODE.toString(), qrCodeDimension);



    try {
        mBitmap = qrCodeEncoder.encodeAsBitmap();
        mImageView.setImageBitmap(mBitmap);
        mImageView.setVisibility(View.VISIBLE);
        mErrorView.setVisibility(View.GONE);
    } catch (WriterException e) {
        e.printStackTrace();
        mErrorView.setText("Error: "+e.getMessage());
        mErrorView.setVisibility(View.VISIBLE);
        mImageView.setVisibility(View.GONE);
    }
}

项目：mobile-store 文件：QRCodeEncoder.java

public Bitmap encodeAsBitmap() throws WriterException {
    if (!encoded) return null;

    Map<EncodeHintType, Object> hints = null;
    String encoding = guessAppropriateEncoding(contents);
    if (encoding != null) {
        hints = new EnumMap<>(EncodeHintType.class);
        hints.put(EncodeHintType.CHARACTER_SET, encoding);
    }
    MultiFormatWriter writer = new MultiFormatWriter();
    BitMatrix result = writer.encode(contents, format, dimension, dimension, hints);
    int width = result.getWidth();
    int height = result.getHeight();
    int[] pixels = new int[width * height];
    // 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;
}

项目：CodeScaner 文件：EncodingHandler.java

public static Bitmap createQRCode(String str,int widthAndHeight) throws WriterException {
    Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();
       hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
    BitMatrix matrix = new MultiFormatWriter().encode(str,
            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] = BLACK;
            }
        }
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height,
            Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
}

项目：MeiLa_GNN 文件：EncodingHandler.java

public static Bitmap createQRCode(String str, int widthAndHeight) throws WriterException {
    Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();
    hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
    BitMatrix matrix = new MultiFormatWriter().encode(str,
            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] = BLACK;
            }
        }
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height,
            Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
}

项目：19porn 文件：InvitationActivity.java

private Bitmap createQRCode(String str, int widthAndHeight)
        throws WriterException {
    Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();
    hints.put(EncodeHintType.CHARACTER_SET, "utf-8");// 使用utf8编码
    BitMatrix matrix = new MultiFormatWriter().encode(str,
            BarcodeFormat.QR_CODE, widthAndHeight, widthAndHeight, hints);// 这里需要把hints传进去，否则会出现中文乱码
    int width = matrix.getWidth();
    int height = matrix.getHeight();
    int[] pixels = new int[width * height];

    // 上色，如果不做保存二维码、分享二维码等功能，上白色部分可以不写。至于原因，在生成图片的时候，如果没有指定颜色，其会使用系统默认颜色来上色，很多情况就会出现保存的二维码图片全黑
    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {
            if (matrix.get(x, y)) {// 有数据的像素点使用黑色
                pixels[y * width + x] = BLACK;
            } else {// 其他部分则使用白色
                pixels[y * width + x] = WHITE;
            }
        }
    }
    //生成bitmap
    Bitmap bitmap = Bitmap.createBitmap(width, height,
            Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
}

项目：PeSanKita-android 文件：QrCode.java

public static @NonNull Bitmap create(String data) {
  try {
    BitMatrix result = new QRCodeWriter().encode(data, BarcodeFormat.QR_CODE, 512, 512);
    Bitmap    bitmap = Bitmap.createBitmap(result.getWidth(), result.getHeight(), Bitmap.Config.ARGB_8888);

    for (int y = 0; y < result.getHeight(); y++) {
      for (int x = 0; x < result.getWidth(); x++) {
        if (result.get(x, y)) {
          bitmap.setPixel(x, y, Color.BLACK);
        }
      }
    }

    return bitmap;
  } catch (WriterException e) {
    Log.w(TAG, e);
    return Bitmap.createBitmap(512, 512, Bitmap.Config.ARGB_8888);
  }
}

项目：Easy-WeChat 文件：QRCodeUtil.java

/**
 * 关于Ansi Color的信息，参考：http://www.lihaoyi.com/post/BuildyourownCommandLinewithANSIescapecodes.html
 *
 * @param text
 */
public static void printQRCodeInTerminal(String text) {
    int qrcodeWidth = 400;
    int qrcodeHeight = 400;
    HashMap<EncodeHintType, String> hints = new HashMap<>();
    hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
    try {
        BitMatrix bitMatrix = new QRCodeWriter().encode(text, BarcodeFormat.QR_CODE, qrcodeWidth, qrcodeHeight, hints);

        // 将像素点转成格子
        int width = bitMatrix.getWidth();
        int height = bitMatrix.getHeight();

        for (int y = 30; y < height - 30; y += 10) {
            for (int x = 30; x < width - 20; x += 10) {
                boolean isBlack = bitMatrix.get(x, y);
                System.out.print(isBlack ? "  " : "\u001b[47m  \u001b[0m");
            }
            System.out.println();
        }
    }
    catch (WriterException e) {
        e.printStackTrace();
    }
}

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：Nird2 文件：QrCodeUtils.java

@Nullable
static Bitmap createQrCode(DisplayMetrics dm, String input) {
    int smallestDimen = Math.min(dm.widthPixels, dm.heightPixels);
    try {
        // Generate QR code
        final BitMatrix encoded = new QRCodeWriter().encode(
                input, QR_CODE, smallestDimen, smallestDimen);
        // Convert QR code to Bitmap
        int width = encoded.getWidth();
        int height = encoded.getHeight();
        int[] pixels = new int[width * height];
        for (int x = 0; x < width; x++) {
            for (int y = 0; y < height; y++) {
                pixels[y * width + x] = encoded.get(x, y) ? BLACK : WHITE;
            }
        }
        Bitmap qr = Bitmap.createBitmap(width, height, ARGB_8888);
        qr.setPixels(pixels, 0, width, 0, 0, width, height);
        return qr;
    } catch (WriterException e) {
        if (LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
        return null;
    }
}

项目：boohee_v5.6 文件：Encoder.java

static void appendKanjiBytes(String content, BitArray bits) throws WriterException {
    try {
        byte[] bytes = content.getBytes("Shift_JIS");
        int length = bytes.length;
        for (int i = 0; i < length; i += 2) {
            int byte2 = bytes[i + 1] & 255;
            int code = ((bytes[i] & 255) << 8) | byte2;
            int subtracted = -1;
            if (code >= 33088 && code <= 40956) {
                subtracted = code - 33088;
            } else if (code >= 57408 && code <= 60351) {
                subtracted = code - 49472;
            }
            if (subtracted == -1) {
                throw new WriterException("Invalid byte sequence");
            }
            bits.appendBits(((subtracted >> 8) * 192) + (subtracted & 255), 13);
        }
    } catch (UnsupportedEncodingException uee) {
        throw new WriterException(uee);
    }
}

项目：AndroidBasicLibs 文件：EncodingHandler.java

public static Bitmap createQRCode(String str,int widthAndHeight) throws WriterException {
    Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();  
       hints.put(EncodeHintType.CHARACTER_SET, "utf-8"); 
    BitMatrix matrix = new MultiFormatWriter().encode(str,
            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] = BLACK;
            }
        }
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height,
            Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
}

项目：QrCode 文件：Encoder.java

static void appendKanjiBytes(String content, BitArray bits) throws WriterException {
  byte[] bytes;
  try {
    bytes = content.getBytes("Shift_JIS");
  } catch (UnsupportedEncodingException uee) {
    throw new WriterException(uee);
  }
  int length = bytes.length;
  for (int i = 0; i < length; i += 2) {
    int byte1 = bytes[i] & 0xFF;
    int byte2 = bytes[i + 1] & 0xFF;
    int code = (byte1 << 8) | byte2;
    int subtracted = -1;
    if (code >= 0x8140 && code <= 0x9ffc) {
      subtracted = code - 0x8140;
    } else if (code >= 0xe040 && code <= 0xebbf) {
      subtracted = code - 0xc140;
    }
    if (subtracted == -1) {
      throw new WriterException("Invalid byte sequence");
    }
    int encoded = ((subtracted >> 8) * 0xc0) + (subtracted & 0xff);
    bits.appendBits(encoded, 13);
  }
}

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：boohee_v5.6 文件：Encoder.java

static void terminateBits(int numDataBytes, BitArray bits) throws WriterException {
    int capacity = numDataBytes * 8;
    if (bits.getSize() > capacity) {
        throw new WriterException("data bits cannot fit in the QR Code" + bits.getSize() + " " +
                "> " + capacity);
    }
    int i;
    for (i = 0; i < 4 && bits.getSize() < capacity; i++) {
        bits.appendBit(false);
    }
    int numBitsInLastByte = bits.getSize() & 7;
    if (numBitsInLastByte > 0) {
        for (i = numBitsInLastByte; i < 8; i++) {
            bits.appendBit(false);
        }
    }
    int numPaddingBytes = numDataBytes - bits.getSizeInBytes();
    for (i = 0; i < numPaddingBytes; i++) {
        bits.appendBits((i & 1) == 0 ? 236 : 17, 8);
    }
    if (bits.getSize() != capacity) {
        throw new WriterException("Bits size does not equal capacity");
    }
}

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

static void appendKanjiBytes(String content, BitArray bits) throws WriterException {
  byte[] bytes;
  try {
    bytes = content.getBytes("Shift_JIS");
  } catch (UnsupportedEncodingException uee) {
    throw new WriterException(uee);
  }
  int length = bytes.length;
  for (int i = 0; i < length; i += 2) {
    int byte1 = bytes[i] & 0xFF;
    int byte2 = bytes[i + 1] & 0xFF;
    int code = (byte1 << 8) | byte2;
    int subtracted = -1;
    if (code >= 0x8140 && code <= 0x9ffc) {
      subtracted = code - 0x8140;
    } else if (code >= 0xe040 && code <= 0xebbf) {
      subtracted = code - 0xc140;
    }
    if (subtracted == -1) {
      throw new WriterException("Invalid byte sequence");
    }
    int encoded = ((subtracted >> 8) * 0xc0) + (subtracted & 0xff);
    bits.appendBits(encoded, 13);
  }
}

项目：weex-3d-map 文件：OneDimensionalCodeWriter.java

/**
 * Encode the contents following specified format.
 * {@code width} and {@code height} are required size. This method may return bigger size
 * {@code BitMatrix} when specified size is too small. The user can set both {@code width} and
 * {@code height} to zero to get minimum size barcode. If negative value is set to {@code width}
 * or {@code height}, {@code IllegalArgumentException} is thrown.
 */
@Override
public BitMatrix encode(String contents,
                        BarcodeFormat format,
                        int width,
                        int height,
                        Map<EncodeHintType,?> hints) throws WriterException {
  if (contents.isEmpty()) {
    throw new IllegalArgumentException("Found empty contents");
  }

  if (width < 0 || height < 0) {
    throw new IllegalArgumentException("Negative size is not allowed. Input: "
                                           + width + 'x' + height);
  }

  int sidesMargin = getDefaultMargin();
  if (hints != null && hints.containsKey(EncodeHintType.MARGIN)) {
    sidesMargin = Integer.parseInt(hints.get(EncodeHintType.MARGIN).toString());
  }

  boolean[] code = encode(contents);
  return renderResult(code, width, height, sidesMargin);
}

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：digital-display-garden-iteration-4-revolverenguardia-1 文件：QRCodes.java

public static BufferedImage createQRCode(String qrCodeData, String charset, Map hintMap, int qrCodeheight, int qrCodewidth)
        throws WriterException, IOException {
    //Create the BitMatrix representing the QR code
    BitMatrix matrix = new MultiFormatWriter().encode(
            new String(qrCodeData.getBytes(charset), charset),
            BarcodeFormat.QR_CODE, qrCodewidth, qrCodeheight, hintMap);

    //Create BufferedImages from the QRCode BitMatricies
    return MatrixToImageWriter.toBufferedImage(matrix);
}

项目：anyRTC-RTCP-Android 文件：QRCode.java

/**
 * 比方法2的颜色黑一些
 *
 * @param text
 * @param size
 * @param mBitmap
 * @return
 */
public static Bitmap createQRCodeWithLogo4(String text, int size, Bitmap mBitmap) {
    try {
        IMAGE_HALFWIDTH = size / 10;
        Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");

        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
        BitMatrix bitMatrix = new QRCodeWriter().encode(text,
                BarcodeFormat.QR_CODE, size, size, hints);

        //将logo图片按martix设置的信息缩放
        mBitmap = Bitmap.createScaledBitmap(mBitmap, size, size, false);

        int[] pixels = new int[size * size];
        boolean flag = true;
        for (int y = 0; y < size; y++) {
            for (int x = 0; x < size; x++) {
                if (bitMatrix.get(x, y)) {
                    if (flag) {
                        flag = false;
                        pixels[y * size + x] = 0xff000000;
                    } else {
                        pixels[y * size + x] = mBitmap.getPixel(x, y);
                        flag = true;
                    }
                } else {
                    pixels[y * size + x] = 0xffffffff;
                }
            }
        }
        Bitmap bitmap = Bitmap.createBitmap(size, size,
                Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, size, 0, 0, size, size);
        return bitmap;
    } catch (WriterException e) {
        e.printStackTrace();
        return null;
    }
}

项目：QrCode 文件：Encoder.java

static void append8BitBytes(String content, BitArray bits, String encoding)
    throws WriterException {
  byte[] bytes;
  try {
    bytes = content.getBytes(encoding);
  } catch (UnsupportedEncodingException uee) {
    throw new WriterException(uee);
  }
  for (byte b : bytes) {
    bits.appendBits(b, 8);
  }
}

项目：boohee_v5.6 文件：PDF417.java

public void generateBarcodeLogic(String msg, int errorCorrectionLevel) throws WriterException {
    int errorCorrectionCodeWords = PDF417ErrorCorrection.getErrorCorrectionCodewordCount
            (errorCorrectionLevel);
    String highLevel = PDF417HighLevelEncoder.encodeHighLevel(msg, this.compaction, this
            .encoding);
    int sourceCodeWords = highLevel.length();
    int[] dimension = determineDimensions(sourceCodeWords, errorCorrectionCodeWords);
    int cols = dimension[0];
    int rows = dimension[1];
    int pad = getNumberOfPadCodewords(sourceCodeWords, errorCorrectionCodeWords, cols, rows);
    if ((sourceCodeWords + errorCorrectionCodeWords) + 1 > PDF417Common.NUMBER_OF_CODEWORDS) {
        throw new WriterException("Encoded message contains to many code words, message to " +
                "big (" + msg.length() + " bytes)");
    }
    int n = (sourceCodeWords + pad) + 1;
    StringBuilder stringBuilder = new StringBuilder(n);
    stringBuilder.append((char) n);
    stringBuilder.append(highLevel);
    for (int i = 0; i < pad; i++) {
        stringBuilder.append('΄');
    }
    String dataCodewords = stringBuilder.toString();
    String fullCodewords = dataCodewords + PDF417ErrorCorrection.generateErrorCorrection
            (dataCodewords, errorCorrectionLevel);
    this.barcodeMatrix = new BarcodeMatrix(rows, cols);
    encodeLowLevel(fullCodewords, cols, rows, errorCorrectionLevel, this.barcodeMatrix);
}

项目：hackmelock-android 文件：ShareActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_share);

    QRImage = (ImageView)findViewById(R.id.QRCode);

    buttonGenerate = (Button)findViewById(R.id.button_generate);
    buttonGenerate.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            QRCodeWriter writer = new QRCodeWriter();
            hackmelockDevice = dbHelper.getConfig();

            String toEncode = utils.majorMinorToHexString(hackmelockDevice.Major, hackmelockDevice.Minor) + ":" +
                    utils.bytesToHex(hackmelockDevice.keys[KeyID]) + ":" + KeyID +":" + System.currentTimeMillis()/1000 + ":" + DateTo;
            Log.d("Share","Text to encode: " + toEncode); //contains sensitive information (key)
            try {
                BitMatrix bitMatrix = writer.encode(toEncode, BarcodeFormat.QR_CODE, 256, 256);
                int width = bitMatrix.getWidth();
                int height = bitMatrix.getHeight();
                Bitmap 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);
                    }
                }
                QRImage.setImageBitmap(bmp);
                QRImage.setVisibility(View.VISIBLE);

                buttonGenerate.setVisibility(View.VISIBLE);
            } catch (WriterException e) {
                e.printStackTrace();
            }
        }
    });
}

项目：SmartButler 文件：EncodingUtils.java

/**
 * 创建二维码
 *
 * @param content   content
 * @param widthPix  widthPix
 * @param heightPix heightPix
 * @param logoBm    logoBm
 * @return 二维码
 */
public static Bitmap createQRCode(String content, int widthPix, int heightPix, Bitmap logoBm) {
    try {
        if (content == null || "".equals(content)) {
            return null;
        }
        // 配置参数
        Map<EncodeHintType, Object> hints = new HashMap<>();
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        // 容错级别
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
        // 图像数据转换，使用了矩阵转换
        BitMatrix bitMatrix = new QRCodeWriter().encode(content, BarcodeFormat.QR_CODE, widthPix,
                heightPix, hints);
        int[] pixels = new int[widthPix * heightPix];
        // 下面这里按照二维码的算法，逐个生成二维码的图片，
        // 两个for循环是图片横列扫描的结果
        for (int y = 0; y < heightPix; y++) {
            for (int x = 0; x < widthPix; x++) {
                if (bitMatrix.get(x, y)) {
                    pixels[y * widthPix + x] = 0xff000000;
                } else {
                    pixels[y * widthPix + x] = 0xffffffff;
                }
            }
        }
        // 生成二维码图片的格式，使用ARGB_8888
        Bitmap bitmap = Bitmap.createBitmap(widthPix, heightPix, Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, widthPix, 0, 0, widthPix, heightPix);
        if (logoBm != null) {
            bitmap = addLogo(bitmap, logoBm);
        }
        //必须使用compress方法将bitmap保存到文件中再进行读取。直接返回的bitmap是没有任何压缩的，内存消耗巨大！
        return bitmap;
    } catch (WriterException e) {
        e.printStackTrace();
    }
    return null;
}

项目：keepass2android 文件：QRCodeEncoder.java

private void encodeFromStreamExtra(Intent intent) throws WriterException {
  format = BarcodeFormat.QR_CODE;
  Bundle bundle = intent.getExtras();
  if (bundle == null) {
    throw new WriterException("No extras");
  }
  Uri uri = bundle.getParcelable(Intent.EXTRA_STREAM);
  if (uri == null) {
    throw new WriterException("No EXTRA_STREAM");
  }
  byte[] vcard;
  String vcardString;
  try {
    InputStream stream = activity.getContentResolver().openInputStream(uri);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    byte[] buffer = new byte[2048];
    int bytesRead;
    while ((bytesRead = stream.read(buffer)) > 0) {
      baos.write(buffer, 0, bytesRead);
    }
    vcard = baos.toByteArray();
    vcardString = new String(vcard, 0, vcard.length, "UTF-8");
  } catch (IOException ioe) {
    throw new WriterException(ioe);
  }
  Log.d(TAG, "Encoding share intent content:");
  Log.d(TAG, vcardString);
  Result result = new Result(vcardString, vcard, null, BarcodeFormat.QR_CODE);
  ParsedResult parsedResult = ResultParser.parseResult(result);
  if (!(parsedResult instanceof AddressBookParsedResult)) {
    throw new WriterException("Result was not an address");
  }
  encodeQRCodeContents((AddressBookParsedResult) parsedResult);
  if (contents == null || contents.isEmpty()) {
    throw new WriterException("No content to encode");
  }
}

项目：digital-display-garden-iteration-4-dorfner-v2 文件：TestQRCodes.java

@Test
public void createQRFromBedURLTest() throws IOException, WriterException, NotFoundException {
    BufferedImage qr =  QRCodes.createQRFromURL("http://dorfner.congrue.xyz:2538/bed/1N");
    BufferedImage qr2 =  QRCodes.createQRFromURL("http://dorfner.congrue.xyz:2538/bed/2S");
    assertEquals("The 1N bed QR code has an incorrect URL",
                 "http://dorfner.congrue.xyz:2538/bed/1N",
                          readQRCode(qr, hintMap));
    assertEquals("The 2S bed QR code has an incorrect URL",
                 "http://dorfner.congrue.xyz:2538/bed/2S",
                         readQRCode(qr2, hintMap));
}

项目：weex-3d-map 文件：QRCodeEncoder.java

Bitmap encodeAsBitmap() throws WriterException {
  String contentsToEncode = contents;
  if (contentsToEncode == null) {
    return null;
  }
  Map<EncodeHintType,Object> hints = null;
  String encoding = guessAppropriateEncoding(contentsToEncode);
  if (encoding != null) {
    hints = new EnumMap<>(EncodeHintType.class);
    hints.put(EncodeHintType.CHARACTER_SET, encoding);
  }
  BitMatrix result;
  try {
    result = new MultiFormatWriter().encode(contentsToEncode, format, dimension, dimension, hints);
  } catch (IllegalArgumentException iae) {
    // Unsupported format
    return null;
  }
  int width = result.getWidth();
  int height = result.getHeight();
  int[] pixels = new int[width * height];
  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;
}

项目：Loyalty 文件：BarcodeTask.java

@Override
protected Bitmap doInBackground(Void... params) {
    BarcodeGenerator generator = new BarcodeGenerator(context);

    try {
        return generator.renderBarcode(card.getBarcode(), card.getFormat(), 300, 50);
    } catch (WriterException e) {
        exception = e;
    }

    return null;
}

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

private static void embedPositionDetectionPatternsAndSeparators(ByteMatrix matrix) throws WriterException {
  // Embed three big squares at corners.
  int pdpWidth = POSITION_DETECTION_PATTERN[0].length;
  // Left top corner.
  embedPositionDetectionPattern(0, 0, matrix);
  // Right top corner.
  embedPositionDetectionPattern(matrix.getWidth() - pdpWidth, 0, matrix);
  // Left bottom corner.
  embedPositionDetectionPattern(0, matrix.getWidth() - pdpWidth, matrix);

  // Embed horizontal separation patterns around the squares.
  int hspWidth = 8;
  // Left top corner.
  embedHorizontalSeparationPattern(0, hspWidth - 1, matrix);
  // Right top corner.
  embedHorizontalSeparationPattern(matrix.getWidth() - hspWidth,
      hspWidth - 1, matrix);
  // Left bottom corner.
  embedHorizontalSeparationPattern(0, matrix.getWidth() - hspWidth, matrix);

  // Embed vertical separation patterns around the squares.
  int vspSize = 7;
  // Left top corner.
  embedVerticalSeparationPattern(vspSize, 0, matrix);
  // Right top corner.
  embedVerticalSeparationPattern(matrix.getHeight() - vspSize - 1, 0, matrix);
  // Left bottom corner.
  embedVerticalSeparationPattern(vspSize, matrix.getHeight() - vspSize,
      matrix);
}

项目：boohee_v5.6 文件：MatrixUtil.java

static void embedDataBits(BitArray dataBits, int maskPattern, ByteMatrix matrix) throws
        WriterException {
    int bitIndex = 0;
    int direction = -1;
    int x = matrix.getWidth() - 1;
    int y = matrix.getHeight() - 1;
    while (x > 0) {
        if (x == 6) {
            x--;
        }
        while (y >= 0 && y < matrix.getHeight()) {
            for (int i = 0; i < 2; i++) {
                int xx = x - i;
                if (isEmpty(matrix.get(xx, y))) {
                    boolean bit;
                    if (bitIndex < dataBits.getSize()) {
                        bit = dataBits.get(bitIndex);
                        bitIndex++;
                    } else {
                        bit = false;
                    }
                    if (maskPattern != -1 && MaskUtil.getDataMaskBit(maskPattern, xx, y)) {
                        bit = !bit;
                    }
                    matrix.set(xx, y, bit);
                }
            }
            y += direction;
        }
        direction = -direction;
        y += direction;
        x -= 2;
    }
    if (bitIndex != dataBits.getSize()) {
        throw new WriterException("Not all bits consumed: " + bitIndex + '/' + dataBits
                .getSize());
    }
}

项目：boohee_v5.6 文件：PDF417HighLevelEncoder.java

private static void encodingECI(int eci, StringBuilder sb) throws WriterException {
    if (eci >= 0 && eci < LATCH_TO_TEXT) {
        sb.append('Ο');
        sb.append((char) eci);
    } else if (eci < 810900) {
        sb.append('Ξ');
        sb.append((char) ((eci / LATCH_TO_TEXT) - 1));
        sb.append((char) (eci % LATCH_TO_TEXT));
    } else if (eci < 811800) {
        sb.append('Ν');
        sb.append((char) (810900 - eci));
    } else {
        throw new WriterException("ECI number not in valid range from 0..811799, but was " + eci);
    }
}

项目：Zxing 文件：Util.java

/**
 * 根据宽高生成二维码
 *
 * @param width
 * @param height
 * @param source
 * @return
 */
public static Bitmap createQRCode(int width, int height, String source) {
    try {
        if (TextUtils.isEmpty(source)) {
            return null;
        }
        Hashtable<EncodeHintType, String> hints = new Hashtable<>();
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        BitMatrix bitMatrix = new QRCodeWriter().encode(source, BarcodeFormat.QR_CODE, width, height, hints);
        int[] pixels = new int[width * height];
        for (int y = 0; y < height; y++) {
            for (int x = 0; x < width; x++) {
                if (bitMatrix.get(x, y)) {
                    pixels[y * width + x] = 0xff000000;
                } else {
                    pixels[y * width + x] = 0xffffffff;
                }
            }
        }
        // sheng chen de er wei ma
        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：boohee_v5.6 文件：MatrixUtil.java

private static void embedPositionDetectionPatternsAndSeparators(ByteMatrix matrix) throws
        WriterException {
    int pdpWidth = POSITION_DETECTION_PATTERN[0].length;
    embedPositionDetectionPattern(0, 0, matrix);
    embedPositionDetectionPattern(matrix.getWidth() - pdpWidth, 0, matrix);
    embedPositionDetectionPattern(0, matrix.getWidth() - pdpWidth, matrix);
    embedHorizontalSeparationPattern(0, 7, matrix);
    embedHorizontalSeparationPattern(matrix.getWidth() - 8, 7, matrix);
    embedHorizontalSeparationPattern(0, matrix.getWidth() - 8, matrix);
    embedVerticalSeparationPattern(7, 0, matrix);
    embedVerticalSeparationPattern((matrix.getHeight() - 7) - 1, 0, matrix);
    embedVerticalSeparationPattern(7, matrix.getHeight() - 7, matrix);
}

项目：digital-display-garden-iteration-4-revolverenguardia-1 文件：TestQRCodes.java

@Test
public void TestCreateBufferedImages() throws IOException,WriterException{
    String bedURLs[] = new String[2];
    bedURLs[0]= "http://localhost:2538/bed/bed1?qr=true";
    bedURLs[1] = "http://localhost:2538/bed/bed2?qr=true";
    System.out.println(QRCodes.createBufferedImages(bedURLs).get(0));

    List<BufferedImage> qrCodeImages = new ArrayList<BufferedImage>();
    for(int i = 0; i < 2; i++) {
        qrCodeImages.add(createQRFromBedURL(bedURLs[i]));
    }

    //test to see if the width is 300 of the created buffered image
    assertEquals("they should return same buffered images", qrCodeImages.get(0).toString().contains("width = 300"),QRCodes.createBufferedImages(bedURLs).get(0).toString().contains("width = 300") );
}

项目：boohee_v5.6 文件：UPCAWriter.java

public BitMatrix encode(String contents, BarcodeFormat format, int width, int height,
                        Map<EncodeHintType, ?> hints) throws WriterException {
    if (format == BarcodeFormat.UPC_A) {
        return this.subWriter.encode(preencode(contents), BarcodeFormat.EAN_13, width,
                height, hints);
    }
    throw new IllegalArgumentException("Can only encode UPC-A, but got " + format);
}

项目：letv 文件：PDF417Writer.java

@Deprecated
public BitMatrix encode(String contents, BarcodeFormat format, boolean compact, int width, int height, int minCols, int maxCols, int minRows, int maxRows, Compaction compaction) throws WriterException {
    Map<EncodeHintType, Object> hints = new EnumMap(EncodeHintType.class);
    hints.put(EncodeHintType.PDF417_COMPACT, Boolean.valueOf(compact));
    hints.put(EncodeHintType.PDF417_COMPACTION, compaction);
    hints.put(EncodeHintType.PDF417_DIMENSIONS, new Dimensions(minCols, maxCols, minRows, maxRows));
    return encode(contents, format, width, height, hints);
}