/***

     * 生成二维码方法

     * @param str 生成内容

     * @param widthHeight 宽度和高度

     * @return

     * @throws WriterException

     */

    public static Bitmap Create2DCode(String str,BarcodeFormat barcodeFormat,int widthHeight) throws WriterException {

        Hashtable<EncodeHintType, String> hints = new Hashtable<>();

        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, widthHeight, widthHeight);

        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;

                }else{

                    pixels[y * width + x] = 0xffffffff;

　　　　　　　　　　}

            }

        }

        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;

    }

    public static Bitmap creatEAN13(String str,int  paramsWidth,int  paramsHeight) throws WriterException{

        Hashtable<EncodeHintType, String> hints = new Hashtable<>();

        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.EAN_13

                , paramsWidth, paramsHeight);

        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;

    }

    public static Bitmap creatUPCA(String str,int  paramsWidth,int  paramsHeight) throws WriterException{

        Hashtable<EncodeHintType, String> hints = new Hashtable<>();

        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.UPC_A, paramsWidth, paramsHeight);

        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;

    }