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

Example 21 with EncodeHintType

use of com.google.zxing.EncodeHintType in project zxing by zxing.

the class QRCodeWriterTestCase method compareToGoldenFile.

private static void compareToGoldenFile(String contents, ErrorCorrectionLevel ecLevel, int resolution, String fileName) throws WriterException, IOException {
    BufferedImage image = loadImage(fileName);
    assertNotNull(image);
    BitMatrix goldenResult = createMatrixFromImage(image);
    assertNotNull(goldenResult);
    Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
    hints.put(EncodeHintType.ERROR_CORRECTION, ecLevel);
    Writer writer = new QRCodeWriter();
    BitMatrix generatedResult = writer.encode(contents, BarcodeFormat.QR_CODE, resolution, resolution, hints);
    assertEquals(resolution, generatedResult.getWidth());
    assertEquals(resolution, generatedResult.getHeight());
    assertEquals(goldenResult, generatedResult);
}

Example 22 with EncodeHintType

use of com.google.zxing.EncodeHintType in project QRCode by 5peak2me.

the class MainActivity method Create2DCode.

/**
	 * 用字符串生成二维码
	 * 
	 * @param str
	 * @author J!nl!n
	 * @return
	 * @throws WriterException
	 */
public Bitmap Create2DCode(String str) throws WriterException {
    Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();
    hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
    // 生成二维矩阵,编码时指定大小,不要生成了图片以后再进行缩放,这样会模糊导致识别失败
    BitMatrix matrix = new MultiFormatWriter().encode(str, BarcodeFormat.QR_CODE, 480, 480, hints);
    int width = matrix.getWidth();
    int height = matrix.getHeight();
    // 二维矩阵转为一维像素数组,也就是一直横着排了
    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);
    // 通过像素数组生成bitmap,具体参考api
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
}

Example 23 with EncodeHintType

use of com.google.zxing.EncodeHintType in project zxing by zxing.

the class QRCodeEncoder method encodeAsBitmap.

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;
}

Example 24 with EncodeHintType

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

the class GenerateQrcodePIcHelper method createQRCode.

/**
     * 生成二维码
     *
     * @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（）
     * @return bitmap
     */
public static Bitmap createQRCode(String text, int size) {
    try {
        Hashtable<EncodeHintType, String> hints = new Hashtable<>();
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        BitMatrix bitMatrix = new QRCodeWriter().encode(text, BarcodeFormat.QR_CODE, size, size, hints);
        int[] pixels = new int[size * size];
        for (int y = 0; y < size; y++) {
            for (int x = 0; x < size; x++) {
                if (bitMatrix.get(x, y)) {
                    pixels[y * size + x] = 0xff000000;
                } 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;
    }
}

Example 25 with EncodeHintType

use of com.google.zxing.EncodeHintType in project JustAndroid by chinaltz.

the class CodeUtils method createImage.

/**
     * 生成二维码图片
     * @param text
     * @param w
     * @param h
     * @param logo
     * @return
     */
public static Bitmap createImage(String text, int w, int h, Bitmap logo) {
    if (TextUtils.isEmpty(text)) {
        return null;
    }
    try {
        Bitmap scaleLogo = getScaleLogo(logo, w, h);
        int offsetX = w / 2;
        int offsetY = h / 2;
        int scaleWidth = 0;
        int scaleHeight = 0;
        if (scaleLogo != null) {
            scaleWidth = scaleLogo.getWidth();
            scaleHeight = scaleLogo.getHeight();
            offsetX = (w - scaleWidth) / 2;
            offsetY = (h - scaleHeight) / 2;
        }
        Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        //容错级别
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
        //设置空白边距的宽度
        hints.put(EncodeHintType.MARGIN, 0);
        BitMatrix bitMatrix = new QRCodeWriter().encode(text, BarcodeFormat.QR_CODE, w, h, hints);
        int[] pixels = new int[w * h];
        for (int y = 0; y < h; y++) {
            for (int x = 0; x < w; x++) {
                if (x >= offsetX && x < offsetX + scaleWidth && y >= offsetY && y < offsetY + scaleHeight) {
                    int pixel = scaleLogo.getPixel(x - offsetX, y - offsetY);
                    if (pixel == 0) {
                        if (bitMatrix.get(x, y)) {
                            pixel = 0xff000000;
                        } else {
                            pixel = 0xffffffff;
                        }
                    }
                    pixels[y * w + x] = pixel;
                } else {
                    if (bitMatrix.get(x, y)) {
                        pixels[y * w + x] = 0xff000000;
                    } else {
                        pixels[y * w + x] = 0xffffffff;
                    }
                }
            }
        }
        Bitmap bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, w, 0, 0, w, h);
        return bitmap;
    } catch (WriterException e) {
        e.printStackTrace();
    }
    return null;
}