Examples with WriterException com.google.zxing.WriterException used on opensource projects

Example 16 with WriterException

use of com.google.zxing.WriterException in project Signal-Android by WhisperSystems.

the class QrCode method create.

@NonNull
public static 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);
    }
}

Example 17 with WriterException

use of com.google.zxing.WriterException in project zxingfragmentlib by mitoyarzun.

the class EncodeActivity method onResume.

@Override
protected void onResume() {
    super.onResume();
    // This assumes the view is full screen, which is a good assumption
    WindowManager manager = (WindowManager) getSystemService(WINDOW_SERVICE);
    Display display = manager.getDefaultDisplay();
    Point displaySize = new Point();
    display.getSize(displaySize);
    int width = displaySize.x;
    int height = displaySize.y;
    int smallerDimension = width < height ? width : height;
    smallerDimension = smallerDimension * 7 / 8;
    Intent intent = getIntent();
    if (intent == null) {
        return;
    }
    try {
        boolean useVCard = intent.getBooleanExtra(USE_VCARD_KEY, false);
        qrCodeEncoder = new QRCodeEncoder(this, intent, smallerDimension, useVCard);
        Bitmap bitmap = qrCodeEncoder.encodeAsBitmap();
        if (bitmap == null) {
            Log.w(TAG, "Could not encode barcode");
            showErrorMessage(R.string.msg_encode_contents_failed);
            qrCodeEncoder = null;
            return;
        }
        ImageView view = (ImageView) findViewById(R.id.image_view);
        view.setImageBitmap(bitmap);
        TextView contents = (TextView) findViewById(R.id.contents_text_view);
        if (intent.getBooleanExtra(Intents.Encode.SHOW_CONTENTS, true)) {
            contents.setText(qrCodeEncoder.getDisplayContents());
            setTitle(qrCodeEncoder.getTitle());
        } else {
            contents.setText("");
            setTitle("");
        }
    } catch (WriterException e) {
        Log.w(TAG, "Could not encode barcode", e);
        showErrorMessage(R.string.msg_encode_contents_failed);
        qrCodeEncoder = null;
    }
}

Example 18 with WriterException

use of com.google.zxing.WriterException in project zxingfragmentlib by mitoyarzun.

the class EncodeActivity method share.

//  @Override
//  public boolean onOptionsItemSelected(MenuItem item) {
//    switch (item.getItemId()) {
//      case R.id.menu_share:
//        share();
//        return true;
//      case R.id.menu_encode:
//        Intent intent = getIntent();
//        if (intent == null) {
//          return false;
//        }
//        intent.putExtra(USE_VCARD_KEY, !qrCodeEncoder.isUseVCard());
//        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
//        startActivity(intent);
//        finish();
//        return true;
//      default:
//        return false;
//    }
//  }
private void share() {
    QRCodeEncoder encoder = qrCodeEncoder;
    if (encoder == null) {
        // Odd
        Log.w(TAG, "No existing barcode to send?");
        return;
    }
    String contents = encoder.getContents();
    if (contents == null) {
        Log.w(TAG, "No existing barcode to send?");
        return;
    }
    Bitmap bitmap;
    try {
        bitmap = encoder.encodeAsBitmap();
    } catch (WriterException we) {
        Log.w(TAG, we);
        return;
    }
    if (bitmap == null) {
        return;
    }
    File bsRoot = new File(Environment.getExternalStorageDirectory(), "BarcodeScanner");
    File barcodesRoot = new File(bsRoot, "Barcodes");
    if (!barcodesRoot.exists() && !barcodesRoot.mkdirs()) {
        Log.w(TAG, "Couldn't make dir " + barcodesRoot);
        showErrorMessage(R.string.msg_unmount_usb);
        return;
    }
    File barcodeFile = new File(barcodesRoot, makeBarcodeFileName(contents) + ".png");
    if (!barcodeFile.delete()) {
        Log.w(TAG, "Could not delete " + barcodeFile);
    // continue anyway
    }
    FileOutputStream fos = null;
    try {
        fos = new FileOutputStream(barcodeFile);
        bitmap.compress(Bitmap.CompressFormat.PNG, 0, fos);
    } catch (FileNotFoundException fnfe) {
        Log.w(TAG, "Couldn't access file " + barcodeFile + " due to " + fnfe);
        showErrorMessage(R.string.msg_unmount_usb);
        return;
    } finally {
        if (fos != null) {
            try {
                fos.close();
            } catch (IOException ioe) {
            // do nothing
            }
        }
    }
    Intent intent = new Intent(Intent.ACTION_SEND, Uri.parse("mailto:"));
    intent.putExtra(Intent.EXTRA_SUBJECT, getString(R.string.app_name) + " - " + encoder.getTitle());
    intent.putExtra(Intent.EXTRA_TEXT, contents);
    intent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + barcodeFile.getAbsolutePath()));
    intent.setType("image/png");
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
    startActivity(Intent.createChooser(intent, null));
}

Example 19 with WriterException

use of com.google.zxing.WriterException in project zxingfragmentlib by mitoyarzun.

the class QRCodeEncoder method encodeFromStreamExtra.

// Handles send intents from the Contacts app, retrieving a contact as a VCARD.
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;
    InputStream stream = null;
    try {
        stream = activity.getContentResolver().openInputStream(uri);
        if (stream == null) {
            throw new WriterException("Can't open stream for " + 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);
    } finally {
        if (stream != null) {
            try {
                stream.close();
            } catch (IOException e) {
            // continue
            }
        }
    }
    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");
    }
}

Example 20 with WriterException

use of com.google.zxing.WriterException in project weex-example by KalicyZhou.

the class MatrixUtil method makeTypeInfoBits.

// Make bit vector of type information. On success, store the result in "bits" and return true.
// Encode error correction level and mask pattern. See 8.9 of
// JISX0510:2004 (p.45) for details.
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());
    }
}