使用zxing原始碼內的encode方式，成功可以encode, decode了
private Bitmap encodeString(String input) { try { ByteMatrix result = new MultiFormatWriter().encode(input, BarcodeFormat.QR_CODE, 300, 300); int width = result.width(); int height = result.height(); byte[][] array = result.getArray(); int[] pixels = new int[width * height]; for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++) { int grey = array[y][x] & 0xff; //pixels[y * width + x] = (0xff << 24) | (grey << 16) | (grey << 8) | grey; pixels[y * width + x] = 0xff000000 | (0x00010101 * grey); } } Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); bitmap.setPixels(pixels, 0, width, 0, 0, width, height); return bitmap; } catch (WriterException e) { Log.e(this.getClass().getName(), e.toString(), e); } return null; }