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

Example 11 with WriterException

use of com.google.zxing.WriterException in project smartmodule by carozhu.

the class GenerateQrcodePIcHelper method createQRCodeWithLogo.

/**
     * 生成带logo的二维码，logo默认为二维码的1/5
     *
     * @param text    需要生成二维码的文字、网址等
     * @param size    需要生成二维码的大小（）
     * @param mBitmap logo文件
     * @return bitmap
     */
public static Bitmap createQRCodeWithLogo(String text, int size, Bitmap mBitmap) {
    try {
        IMAGE_HALFWIDTH = size / 10;
        Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        /*
             * 设置容错级别，默认为ErrorCorrectionLevel.L
             * 因为中间加入logo所以建议你把容错级别调至H,否则可能会出现识别不了
             */
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
        BitMatrix bitMatrix = new QRCodeWriter().encode(text, BarcodeFormat.QR_CODE, size, size, hints);
        //矩阵高度
        int width = bitMatrix.getWidth();
        //矩阵宽度
        int height = bitMatrix.getHeight();
        int halfW = width / 2;
        int halfH = height / 2;
        Matrix m = new Matrix();
        float sx = (float) 2 * IMAGE_HALFWIDTH / mBitmap.getWidth();
        float sy = (float) 2 * IMAGE_HALFWIDTH / mBitmap.getHeight();
        m.setScale(sx, sy);
        //设置缩放信息
        //将logo图片按martix设置的信息缩放
        mBitmap = Bitmap.createBitmap(mBitmap, 0, 0, mBitmap.getWidth(), mBitmap.getHeight(), m, false);
        int[] pixels = new int[size * size];
        for (int y = 0; y < size; y++) {
            for (int x = 0; x < size; x++) {
                if (x > halfW - IMAGE_HALFWIDTH && x < halfW + IMAGE_HALFWIDTH && y > halfH - IMAGE_HALFWIDTH && y < halfH + IMAGE_HALFWIDTH) {
                    //该位置用于存放图片信息
                    //记录图片每个像素信息
                    pixels[y * width + x] = mBitmap.getPixel(x - halfW + IMAGE_HALFWIDTH, y - halfH + IMAGE_HALFWIDTH);
                } else {
                    if (bitMatrix.get(x, y)) {
                        pixels[y * size + x] = 0xff000000;
                    } else {
                        //灰色-- 0xEEEEEEEE md_grey_200
                        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;
    }
}

Example 12 with WriterException

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

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 13 with WriterException

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

the class EncodeActivity method share.

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 14 with WriterException

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

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 15 with WriterException

use of com.google.zxing.WriterException in project run-wallet-android by runplay.

the class QR method generateImage.

public static final Bitmap generateImage(final String text, Activity activity) {
    if (text == null || text.trim().isEmpty()) {
        return null;
    }
    int size = 390;
    Map<EncodeHintType, Object> hintMap = new EnumMap<>(EncodeHintType.class);
    hintMap.put(EncodeHintType.CHARACTER_SET, "UTF-8");
    hintMap.put(EncodeHintType.MARGIN, 1);
    QRCodeWriter qrCodeWriter = new QRCodeWriter();
    try {
        BitMatrix byteMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, size, size, hintMap);
        int height = byteMatrix.getHeight();
        int width = byteMatrix.getWidth();
        final Bitmap qrImage = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
        for (int x = 0; x < width; x++) {
            for (int y = 0; y < height; y++) {
                qrImage.setPixel(x, y, byteMatrix.get(x, y) ? Color.BLACK : Color.WHITE);
            }
        }
        Bitmap background = Bitmap.createScaledBitmap(((BitmapDrawable) B.getDrawable(activity, R.drawable.qr_bg)).getBitmap(), 390, 90, false);
        Bitmap bmOverlay = Bitmap.createBitmap(qrImage.getWidth(), qrImage.getHeight() + 90, qrImage.getConfig());
        Canvas canvas = new Canvas(bmOverlay);
        canvas.drawBitmap(qrImage, 0, 90, null);
        canvas.drawBitmap(background, 0, 0, null);
        return bmOverlay;
    } catch (WriterException e) {
        Log.e("QR.ex", "" + e.getMessage());
    }
    return null;
}