Java源码示例：com.google.zxing.DecodeHintType
示例1
/**
* 解析QR图内容
*
* @param imageView
* @return
*/
public static String readImage(ImageView imageView) {
String content = null;
Map<DecodeHintType, String> hints = new HashMap<>();
hints.put(DecodeHintType.CHARACTER_SET, "utf-8");
// 获得待解析的图片
Bitmap bitmap = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
RGBLuminanceSource source = new RGBLuminanceSource(bitmap);
BinaryBitmap bitmap1 = new BinaryBitmap(new HybridBinarizer(source));
QRCodeReader reader = new QRCodeReader();
try {
Result result = reader.decode(bitmap1, hints);
// 得到解析后的文字
content = result.getText();
} catch (Exception e) {
e.printStackTrace();
}
return content;
}
示例2
public DetectorResult[] detectMulti(Map<DecodeHintType,?> hints) throws NotFoundException {
BitMatrix image = getImage();
ResultPointCallback resultPointCallback =
hints == null ? null : (ResultPointCallback) hints.get(DecodeHintType.NEED_RESULT_POINT_CALLBACK);
MultiFinderPatternFinder finder = new MultiFinderPatternFinder(image, resultPointCallback);
FinderPatternInfo[] infos = finder.findMulti(hints);
if (infos.length == 0) {
throw NotFoundException.getNotFoundInstance();
}
List<DetectorResult> result = new ArrayList<>();
for (FinderPatternInfo info : infos) {
try {
result.add(processFinderPatternInfo(info));
} catch (ReaderException e) {
// ignore
}
}
if (result.isEmpty()) {
return EMPTY_DETECTOR_RESULTS;
} else {
return result.toArray(new DetectorResult[result.size()]);
}
}
示例3
CaptureActivityHandler(CaptureActivity activity,
Collection<BarcodeFormat> decodeFormats,
Map<DecodeHintType,?> baseHints,
String characterSet,
CameraManager cameraManager) {
this.activity = activity;
decodeThread = new DecodeThread(activity, decodeFormats, baseHints, characterSet,
new ViewfinderResultPointCallback(activity.getViewfinderView()));
decodeThread.start();
state = State.SUCCESS;
// Start ourselves capturing previews and decoding.
this.cameraManager = cameraManager;
cameraManager.startPreview();
restartPreviewAndDecode();
}
示例4
private static Result[] decode(BinaryBitmap image, Map<DecodeHintType, ?> hints, boolean multiple)
throws NotFoundException, FormatException, ChecksumException {
List<Result> results = new ArrayList<>();
PDF417DetectorResult detectorResult = Detector.detect(image, hints, multiple);
for (ResultPoint[] points : detectorResult.getPoints()) {
DecoderResult decoderResult = PDF417ScanningDecoder.decode(detectorResult.getBits(), points[4], points[5],
points[6], points[7], getMinCodewordWidth(points), getMaxCodewordWidth(points));
Result result = new Result(decoderResult.getText(), decoderResult.getRawBytes(), points, BarcodeFormat.PDF_417);
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.getECLevel());
PDF417ResultMetadata pdf417ResultMetadata = (PDF417ResultMetadata) decoderResult.getOther();
if (pdf417ResultMetadata != null) {
result.putMetadata(ResultMetadataType.PDF417_EXTRA_METADATA, pdf417ResultMetadata);
}
results.add(result);
}
return results.toArray(new Result[results.size()]);
}
示例5
@Override
public Result decode(BinaryBitmap image, Map<DecodeHintType,?> hints)
throws NotFoundException, ChecksumException, FormatException {
DecoderResult decoderResult;
ResultPoint[] points;
if (hints != null && hints.containsKey(DecodeHintType.PURE_BARCODE)) {
BitMatrix bits = extractPureBits(image.getBlackMatrix());
decoderResult = decoder.decode(bits);
points = NO_POINTS;
} else {
DetectorResult detectorResult = new Detector(image.getBlackMatrix()).detect();
decoderResult = decoder.decode(detectorResult.getBits());
points = detectorResult.getPoints();
}
Result result = new Result(decoderResult.getText(), decoderResult.getRawBytes(), points,
BarcodeFormat.DATA_MATRIX);
List<byte[]> byteSegments = decoderResult.getByteSegments();
if (byteSegments != null) {
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, byteSegments);
}
String ecLevel = decoderResult.getECLevel();
if (ecLevel != null) {
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, ecLevel);
}
return result;
}
示例6
public Result decode(BinaryBitmap binarybitmap, Map map)
{
DecoderResult decoderresult;
ResultPoint aresultpoint[];
if (map != null && map.containsKey(DecodeHintType.PURE_BARCODE))
{
BitMatrix bitmatrix = a(binarybitmap.getBlackMatrix());
decoderresult = b.decode(bitmatrix);
aresultpoint = a;
} else
{
DetectorResult detectorresult = (new Detector(binarybitmap)).detect();
decoderresult = b.decode(detectorresult.getBits());
aresultpoint = detectorresult.getPoints();
}
return new Result(decoderresult.getText(), decoderresult.getRawBytes(), aresultpoint, BarcodeFormat.PDF_417);
}
示例7
@Override
public Result decode(BinaryBitmap image, Map<DecodeHintType, ?> hints) throws NotFoundException, ChecksumException, FormatException {
DecoderResult decoderResult;
ResultPoint[] points;
if (hints != null && hints.containsKey(DecodeHintType.PURE_BARCODE)) {
BitMatrix bits = extractPureBits(image.getBlackMatrix());
decoderResult = decoder.decode(bits, hints);
points = NO_POINTS;
} else {
DetectorResult detectorResult = new Detector(image.getBlackMatrix()).detect(hints);
decoderResult = decoder.decode(detectorResult.getBits(), hints);
points = detectorResult.getPoints();
}
Result result = new Result(decoderResult.getText(), decoderResult.getRawBytes(), points, BarcodeFormat.QR_CODE);
List<byte[]> byteSegments = decoderResult.getByteSegments();
if (byteSegments != null) {
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, byteSegments);
}
String ecLevel = decoderResult.getECLevel();
if (ecLevel != null) {
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, ecLevel);
}
return result;
}
示例8
public DetectorResult[] detectMulti(Map<DecodeHintType,?> hints) throws NotFoundException {
BitMatrix image = getImage();
ResultPointCallback resultPointCallback =
hints == null ? null : (ResultPointCallback) hints.get(DecodeHintType.NEED_RESULT_POINT_CALLBACK);
MultiFinderPatternFinder finder = new MultiFinderPatternFinder(image, resultPointCallback);
FinderPatternInfo[] infos = finder.findMulti(hints);
if (infos.length == 0) {
throw NotFoundException.getNotFoundInstance();
}
List<DetectorResult> result = new ArrayList<>();
for (FinderPatternInfo info : infos) {
try {
result.add(processFinderPatternInfo(info));
} catch (ReaderException e) {
// ignore
}
}
if (result.isEmpty()) {
return EMPTY_DETECTOR_RESULTS;
} else {
return result.toArray(new DetectorResult[result.size()]);
}
}
示例9
/**
* <p>Detects a PDF417 Code in an image. Only checks 0 and 180 degree rotations.</p>
*
* @param image barcode image to decode
* @param hints optional hints to detector
* @param multiple if true, then the image is searched for multiple codes. If false, then at most one code will
* be found and returned
* @return {@link PDF417DetectorResult} encapsulating results of detecting a PDF417 code
* @throws NotFoundException if no PDF417 Code can be found
*/
public static PDF417DetectorResult detect(BinaryBitmap image, Map<DecodeHintType,?> hints, boolean multiple)
throws NotFoundException {
// TODO detection improvement, tryHarder could try several different luminance thresholds/blackpoints or even
// different binarizers
//boolean tryHarder = hints != null && hints.containsKey(DecodeHintType.TRY_HARDER);
BitMatrix bitMatrix = image.getBlackMatrix();
List<ResultPoint[]> barcodeCoordinates = detect(multiple, bitMatrix);
if (barcodeCoordinates.isEmpty()) {
bitMatrix = bitMatrix.clone();
bitMatrix.rotate180();
barcodeCoordinates = detect(multiple, bitMatrix);
}
return new PDF417DetectorResult(bitMatrix, barcodeCoordinates);
}
示例10
@Override
public Result decodeRow(int rowNumber,
BitArray row,
Map<DecodeHintType,?> hints) throws NotFoundException {
Pair leftPair = decodePair(row, false, rowNumber, hints);
addOrTally(possibleLeftPairs, leftPair);
row.reverse();
Pair rightPair = decodePair(row, true, rowNumber, hints);
addOrTally(possibleRightPairs, rightPair);
row.reverse();
for (Pair left : possibleLeftPairs) {
if (left.getCount() > 1) {
for (Pair right : possibleRightPairs) {
if (right.getCount() > 1 && checkChecksum(left, right)) {
return constructResult(left, right);
}
}
}
}
throw NotFoundException.getNotFoundInstance();
}
示例11
private static Result[] decode(BinaryBitmap image, Map<DecodeHintType, ?> hints, boolean multiple)
throws NotFoundException, FormatException, ChecksumException {
List<Result> results = new ArrayList<>();
PDF417DetectorResult detectorResult = Detector.detect(image, hints, multiple);
for (ResultPoint[] points : detectorResult.getPoints()) {
DecoderResult decoderResult = PDF417ScanningDecoder.decode(detectorResult.getBits(), points[4], points[5],
points[6], points[7], getMinCodewordWidth(points), getMaxCodewordWidth(points));
Result result = new Result(decoderResult.getText(), decoderResult.getRawBytes(), points, BarcodeFormat.PDF_417);
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.getECLevel());
PDF417ResultMetadata pdf417ResultMetadata = (PDF417ResultMetadata) decoderResult.getOther();
if (pdf417ResultMetadata != null) {
result.putMetadata(ResultMetadataType.PDF417_EXTRA_METADATA, pdf417ResultMetadata);
}
results.add(result);
}
return results.toArray(new Result[results.size()]);
}
示例12
public DetectorResult[] detectMulti(Map<DecodeHintType,?> hints) throws NotFoundException {
BitMatrix image = getImage();
ResultPointCallback resultPointCallback =
hints == null ? null : (ResultPointCallback) hints.get(DecodeHintType.NEED_RESULT_POINT_CALLBACK);
MultiFinderPatternFinder finder = new MultiFinderPatternFinder(image, resultPointCallback);
FinderPatternInfo[] infos = finder.findMulti(hints);
if (infos.length == 0) {
throw NotFoundException.getNotFoundInstance();
}
List<DetectorResult> result = new ArrayList<>();
for (FinderPatternInfo info : infos) {
try {
result.add(processFinderPatternInfo(info));
} catch (ReaderException e) {
// ignore
}
}
if (result.isEmpty()) {
return EMPTY_DETECTOR_RESULTS;
} else {
return result.toArray(new DetectorResult[result.size()]);
}
}
示例13
private Map<DecodeHintType, Object> changeZXingDecodeDataMode() {
Map<DecodeHintType, Object> hints = new EnumMap<DecodeHintType, Object>(DecodeHintType.class);
Collection<BarcodeFormat> decodeFormats = new ArrayList<BarcodeFormat>();
switch (mDataMode) {
case DECODE_DATA_MODE_ALL:
decodeFormats.addAll(DecodeFormatManager.getBarCodeFormats());
decodeFormats.addAll(DecodeFormatManager.getQrCodeFormats());
break;
case DECODE_DATA_MODE_QRCODE:
decodeFormats.addAll(DecodeFormatManager.getQrCodeFormats());
break;
case DECODE_DATA_MODE_BARCODE:
decodeFormats.addAll(DecodeFormatManager.getBarCodeFormats());
break;
}
hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
return hints;
}
示例14
private static void decodeByteSegment(BitSource bits, StringBuilder result, int count, CharacterSetECI currentCharacterSetECI,
Collection<byte[]> byteSegments, Map<DecodeHintType, ?> hints) throws FormatException {
// Don't crash trying to read more bits than we have available.
if (count << 3 > bits.available()) {
throw FormatException.getFormatInstance();
}
byte[] readBytes = new byte[count];
for (int i = 0; i < count; i++) {
readBytes[i] = (byte) bits.readBits(8);
}
String encoding;
if (currentCharacterSetECI == null) {
// The spec isn't clear on this mode; see
// section 6.4.5: t does not say which encoding to assuming
// upon decoding. I have seen ISO-8859-1 used as well as
// Shift_JIS -- without anything like an ECI designator to
// give a hint.
encoding = StringUtils.guessEncoding(readBytes, hints);
} else {
encoding = currentCharacterSetECI.name();
}
try {
result.append(new String(readBytes, encoding));
} catch (UnsupportedEncodingException uce) {
throw FormatException.getFormatInstance();
}
byteSegments.add(readBytes);
}
示例15
static Map<DecodeHintType, Object> parseDecodeHints(Intent intent) {
Bundle extras = intent.getExtras();
if (extras == null || extras.isEmpty()) {
return null;
}
Map<DecodeHintType,Object> hints = new EnumMap<DecodeHintType,Object>(DecodeHintType.class);
for (DecodeHintType hintType: DecodeHintType.values()) {
if (hintType == DecodeHintType.CHARACTER_SET ||
hintType == DecodeHintType.NEED_RESULT_POINT_CALLBACK ||
hintType == DecodeHintType.POSSIBLE_FORMATS) {
continue; // This hint is specified in another way
}
String hintName = hintType.name();
if (extras.containsKey(hintName)) {
if (hintType.getValueType().equals(Void.class)) {
// Void hints are just flags: use the constant specified by the DecodeHintType
hints.put(hintType, Boolean.TRUE);
} else {
Object hintData = extras.get(hintName);
if (hintType.getValueType().isInstance(hintData)) {
hints.put(hintType, hintData);
} else {
Log.w(TAG, "Ignoring hint " + hintType + " because it is not assignable from " + hintData);
}
}
}
}
Log.i(TAG, "Hints from the Intent: " + hints);
return hints;
}
示例16
/**
* 使用RGB解析bitmap
*
* @param data
* @param width
* @param height
* @param hintTypeMap
* @return
*/
private Result decodeFromRGB(int[] data, int width, int height, Map<DecodeHintType, ?> hintTypeMap) {
RGBLuminanceSource source = new RGBLuminanceSource(width, height, data);
BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(source));
try {
return new MultiFormatReader().decode(binaryBitmap, hintTypeMap);
} catch (NotFoundException e) {
e.printStackTrace();
}
return null;
}
示例17
public DecoderResult decode(BitMatrix bits,
Map<DecodeHintType,?> hints) throws FormatException, ChecksumException {
BitMatrixParser parser = new BitMatrixParser(bits);
byte[] codewords = parser.readCodewords();
correctErrors(codewords, 0, 10, 10, ALL);
int mode = codewords[0] & 0x0F;
byte[] datawords;
switch (mode) {
case 2:
case 3:
case 4:
correctErrors(codewords, 20, 84, 40, EVEN);
correctErrors(codewords, 20, 84, 40, ODD);
datawords = new byte[94];
break;
case 5:
correctErrors(codewords, 20, 68, 56, EVEN);
correctErrors(codewords, 20, 68, 56, ODD);
datawords = new byte[78];
break;
default:
throw FormatException.getFormatInstance();
}
System.arraycopy(codewords, 0, datawords, 0, 10);
System.arraycopy(codewords, 20, datawords, 10, datawords.length - 10);
return DecodedBitStreamParser.decode(datawords, mode);
}
示例18
public DecodeThread(BaseScanActivity activity, int decodeMode) {
this.activity = activity;
handlerInitLatch = new CountDownLatch(1);
hints = new EnumMap<>(DecodeHintType.class);
Collection<BarcodeFormat> decodeFormats = new ArrayList<>();
decodeFormats.addAll(EnumSet.of(BarcodeFormat.AZTEC));
decodeFormats.addAll(EnumSet.of(BarcodeFormat.PDF_417));
switch (decodeMode) {
case BARCODE_MODE:
decodeFormats.addAll(DecodeFormatManager.getBarCodeFormats());
break;
case QRCODE_MODE:
decodeFormats.addAll(DecodeFormatManager.getQrCodeFormats());
break;
case ALL_MODE:
decodeFormats.addAll(DecodeFormatManager.getBarCodeFormats());
decodeFormats.addAll(DecodeFormatManager.getQrCodeFormats());
break;
default:
break;
}
hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
}
示例19
/**
* <p>Detects a QR Code in an image.</p>
*
* @param hints optional hints to detector
* @return {@link DetectorResult} encapsulating results of detecting a QR Code
* @throws NotFoundException if QR Code cannot be found
* @throws FormatException if a QR Code cannot be decoded
*/
public final DetectorResult detect(Map<DecodeHintType,?> hints) throws NotFoundException, FormatException {
resultPointCallback = hints == null ? null :
(ResultPointCallback) hints.get(DecodeHintType.NEED_RESULT_POINT_CALLBACK);
FinderPatternFinder finder = new FinderPatternFinder(image, resultPointCallback);
FinderPatternInfo info = finder.find(hints);
return processFinderPatternInfo(info);
}
示例20
DecodeThread(CaptureActivity activity,
Vector<BarcodeFormat> decodeFormats,
String characterSet,
ResultPointCallback resultPointCallback) {
this.activity = activity;
handlerInitLatch = new CountDownLatch(1);
hints = new Hashtable<DecodeHintType, Object>(4);
//没必要支持全部的格式 我们只需要二维码 加速解码
if (decodeFormats == null || decodeFormats.isEmpty()) {
decodeFormats = new Vector<BarcodeFormat>();
// decodeFormats.addAll(DecodeFormatManager.ONE_D_FORMATS);
decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
// decodeFormats.addAll(DecodeFormatManager.DATA_MATRIX_FORMATS);
}
hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
if (characterSet != null) {
hints.put(DecodeHintType.CHARACTER_SET, characterSet);
}else {
hints.put(DecodeHintType.CHARACTER_SET, "utf-8");
}
hints.put(DecodeHintType.NEED_RESULT_POINT_CALLBACK, resultPointCallback);
}
示例21
@Override
public Result decode(BinaryBitmap image,
Map<DecodeHintType,?> hints) throws NotFoundException, FormatException {
try {
return doDecode(image, hints);
} catch (NotFoundException nfe) {
boolean tryHarder = hints != null && hints.containsKey(DecodeHintType.TRY_HARDER);
if (tryHarder && image.isRotateSupported()) {
BinaryBitmap rotatedImage = image.rotateCounterClockwise();
Result result = doDecode(rotatedImage, hints);
// Record that we found it rotated 90 degrees CCW / 270 degrees CW
Map<ResultMetadataType,?> metadata = result.getResultMetadata();
int orientation = 270;
if (metadata != null && metadata.containsKey(ResultMetadataType.ORIENTATION)) {
// But if we found it reversed in doDecode(), add in that result here:
orientation = (orientation +
(Integer) metadata.get(ResultMetadataType.ORIENTATION)) % 360;
}
result.putMetadata(ResultMetadataType.ORIENTATION, orientation);
// Update result points
ResultPoint[] points = result.getResultPoints();
if (points != null) {
int height = rotatedImage.getHeight();
for (int i = 0; i < points.length; i++) {
points[i] = new ResultPoint(height - points[i].getY() - 1, points[i].getX());
}
}
return result;
} else {
throw nfe;
}
}
}
示例22
public Decoder(@NonNull final StateListener stateListener,
@NonNull final List<BarcodeFormat> formats, @Nullable final DecodeCallback callback) {
mReader = new MultiFormatReader();
mDecoderThread = new DecoderThread();
mHints = new EnumMap<>(DecodeHintType.class);
mHints.put(DecodeHintType.POSSIBLE_FORMATS, formats);
mReader.setHints(mHints);
mCallback = callback;
mStateListener = stateListener;
mState = State.INITIALIZED;
}
示例23
/**
* 添加指定条码格式
*
* @param formats
*/
void addBarCodeFormat(Collection<BarcodeFormat> formats) {
decodeFormats.addAll(formats);
hintTypeMap.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
if (formats.contains(BarcodeFormat.QR_CODE))
hintTypeMap.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
hintTypeMap.put(DecodeHintType.CHARACTER_SET, "utf-8");
multiFormatReader.setHints(hintTypeMap);
}
示例24
public MultiFormatOneDReader(Map<DecodeHintType, ?> hints) {
@SuppressWarnings("unchecked")
Collection<BarcodeFormat> possibleFormats = hints == null ? null
: (Collection<BarcodeFormat>) hints.get(DecodeHintType.POSSIBLE_FORMATS);
boolean useCode39CheckDigit = hints != null && hints.get(DecodeHintType.ASSUME_CODE_39_CHECK_DIGIT) != null;
Collection<OneDReader> readers = new ArrayList<>();
if (possibleFormats != null) {
if (possibleFormats.contains(BarcodeFormat.EAN_13) || possibleFormats.contains(BarcodeFormat.UPC_A)
|| possibleFormats.contains(BarcodeFormat.EAN_8) || possibleFormats.contains(BarcodeFormat.UPC_E)) {
readers.add(new MultiFormatUPCEANReader(hints));
}
if (possibleFormats.contains(BarcodeFormat.CODE_39)) {
readers.add(new Code39Reader(useCode39CheckDigit));
}
if (possibleFormats.contains(BarcodeFormat.CODE_93)) {
readers.add(new Code93Reader());
}
if (possibleFormats.contains(BarcodeFormat.CODE_128)) {
readers.add(new Code128Reader());
}
if (possibleFormats.contains(BarcodeFormat.ITF)) {
readers.add(new ITFReader());
}
if (possibleFormats.contains(BarcodeFormat.CODABAR)) {
readers.add(new CodaBarReader());
}
}
if (readers.isEmpty()) {
readers.add(new MultiFormatUPCEANReader(hints));
readers.add(new Code39Reader());
readers.add(new CodaBarReader());
readers.add(new Code93Reader());
readers.add(new Code128Reader());
readers.add(new ITFReader());
}
this.readers = readers.toArray(new OneDReader[readers.size()]);
}
示例25
public DecodeThread(CaptureActivity activity, int decodeMode) {
this.activity = activity;
handlerInitLatch = new CountDownLatch(1);
hints = new EnumMap<DecodeHintType, Object>(DecodeHintType.class);
Collection<BarcodeFormat> decodeFormats = new ArrayList<BarcodeFormat>();
decodeFormats.addAll(EnumSet.of(BarcodeFormat.AZTEC));
decodeFormats.addAll(EnumSet.of(BarcodeFormat.PDF_417));
switch (decodeMode) {
case BARCODE_MODE:
decodeFormats.addAll(DecodeFormatManager.getBarCodeFormats());
break;
case QRCODE_MODE:
decodeFormats.addAll(DecodeFormatManager.getQrCodeFormats());
break;
case ALL_MODE:
decodeFormats.addAll(DecodeFormatManager.getBarCodeFormats());
decodeFormats.addAll(DecodeFormatManager.getQrCodeFormats());
break;
default:
break;
}
hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
}
示例26
private static void decodeByteSegment(BitSource bits,
StringBuilder result,
int count,
CharacterSetECI currentCharacterSetECI,
Collection<byte[]> byteSegments,
Map<DecodeHintType,?> hints) throws FormatException {
// Don't crash trying to read more bits than we have available.
if (8 * count > bits.available()) {
throw FormatException.getFormatInstance();
}
byte[] readBytes = new byte[count];
for (int i = 0; i < count; i++) {
readBytes[i] = (byte) bits.readBits(8);
}
String encoding;
if (currentCharacterSetECI == null) {
// The spec isn't clear on this mode; see
// section 6.4.5: t does not say which encoding to assuming
// upon decoding. I have seen ISO-8859-1 used as well as
// Shift_JIS -- without anything like an ECI designator to
// give a hint.
encoding = StringUtils.guessEncoding(readBytes, hints);
} else {
encoding = currentCharacterSetECI.name();
}
try {
result.append(new String(readBytes, encoding));
} catch (UnsupportedEncodingException ignored) {
throw FormatException.getFormatInstance();
}
byteSegments.add(readBytes);
}
示例27
DecodeThread(CaptureActivity activity,
Vector<BarcodeFormat> decodeFormats,
String characterSet,
ResultPointCallback resultPointCallback) {
this.activity = activity;
handlerInitLatch = new CountDownLatch(1);
hints = new Hashtable<DecodeHintType, Object>(3);
// // The prefs can't change while the thread is running, so pick them up once here.
// if (decodeFormats == null || decodeFormats.isEmpty()) {
// SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
// decodeFormats = new Vector<BarcodeFormat>();
// if (prefs.getBoolean(PreferencesActivity.KEY_DECODE_1D, true)) {
// decodeFormats.addAll(DecodeFormatManager.ONE_D_FORMATS);
// }
// if (prefs.getBoolean(PreferencesActivity.KEY_DECODE_QR, true)) {
// decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
// }
// if (prefs.getBoolean(PreferencesActivity.KEY_DECODE_DATA_MATRIX, true)) {
// decodeFormats.addAll(DecodeFormatManager.DATA_MATRIX_FORMATS);
// }
// }
if (decodeFormats == null || decodeFormats.isEmpty()) {
decodeFormats = new Vector<BarcodeFormat>();
decodeFormats.addAll(DecodeFormatManager.ONE_D_FORMATS);
decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
decodeFormats.addAll(DecodeFormatManager.DATA_MATRIX_FORMATS);
}
hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
if (characterSet != null) {
hints.put(DecodeHintType.CHARACTER_SET, characterSet);
}
hints.put(DecodeHintType.NEED_RESULT_POINT_CALLBACK, resultPointCallback);
}
示例28
@Override
public Result[] decodeMultiple(BinaryBitmap image, Map<DecodeHintType,?> hints) throws NotFoundException {
List<Result> results = new ArrayList<>();
DetectorResult[] detectorResults = new MultiDetector(image.getBlackMatrix()).detectMulti(hints);
for (DetectorResult detectorResult : detectorResults) {
try {
DecoderResult decoderResult = getDecoder().decode(detectorResult.getBits(), hints);
ResultPoint[] points = detectorResult.getPoints();
// If the code was mirrored: swap the bottom-left and the top-right points.
if (decoderResult.getOther() instanceof QRCodeDecoderMetaData) {
((QRCodeDecoderMetaData) decoderResult.getOther()).applyMirroredCorrection(points);
}
Result result = new Result(decoderResult.getText(), decoderResult.getRawBytes(), points,
BarcodeFormat.QR_CODE);
List<byte[]> byteSegments = decoderResult.getByteSegments();
if (byteSegments != null) {
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, byteSegments);
}
String ecLevel = decoderResult.getECLevel();
if (ecLevel != null) {
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, ecLevel);
}
if (decoderResult.hasStructuredAppend()) {
result.putMetadata(ResultMetadataType.STRUCTURED_APPEND_SEQUENCE,
decoderResult.getStructuredAppendSequenceNumber());
result.putMetadata(ResultMetadataType.STRUCTURED_APPEND_PARITY,
decoderResult.getStructuredAppendParity());
}
results.add(result);
} catch (ReaderException re) {
// ignore and continue
}
}
if (results.isEmpty()) {
return EMPTY_RESULT_ARRAY;
} else {
results = processStructuredAppend(results);
return results.toArray(new Result[results.size()]);
}
}
示例29
@Override
public Result decodeRow(int rowNumber,
BitArray row,
Map<DecodeHintType,?> hints) throws NotFoundException {
for (OneDReader reader : readers) {
try {
return reader.decodeRow(rowNumber, row, hints);
} catch (ReaderException re) {
// continue
}
}
throw NotFoundException.getNotFoundInstance();
}
示例30
private void decode(final byte[] data)
{
final PlanarYUVLuminanceSource source = cameraManager.buildLuminanceSource(data);
final BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
try {
hints.put(DecodeHintType.NEED_RESULT_POINT_CALLBACK,
(ResultPointCallback) dot -> runOnUiThread(() -> scannerView.addDot(dot)));
final Result scanResult = reader.decode(bitmap, hints);
final int thumbnailWidth = source.getThumbnailWidth();
final int thumbnailHeight = source.getThumbnailHeight();
final float thumbnailScaleFactor = (float) thumbnailWidth / source.getWidth();
final Bitmap thumbnailImage = Bitmap.createBitmap(thumbnailWidth, thumbnailHeight,
Bitmap.Config.ARGB_8888);
thumbnailImage.setPixels(
source.renderThumbnail(), 0, thumbnailWidth, 0, 0, thumbnailWidth, thumbnailHeight);
runOnUiThread(() -> handleResult(scanResult, thumbnailImage, thumbnailScaleFactor));
} catch (final ReaderException x) {
// retry
cameraHandler.post(fetchAndDecodeRunnable);
} finally {
reader.reset();
}
}
