打印位图QR代码图像与兄弟标签打印机SDK打印出一个空白标签

Question

我需要能够打印一个位图QR代码使用我的兄弟QL-720 QL。

现在，我能够生成QR代码位图并在ImageView中正确地显示它。在按下按钮时，用户需要能够从兄弟标签打印机打印QR代码位图。

我能够连接到打印机，但是我只能打印出不显示QR代码的空白标签。如何解决这个问题，使位图正确地显示在打印的标签上？

打印位图的方法：

void printImage(Bitmap bitmap) {
    // Specify printer
    final Printer printer = new Printer();
    PrinterInfo settings = printer.getPrinterInfo();
    settings.ipAddress = "192.168.2.149";
    settings.workPath = "/storage/emulated/0/Download";

    settings.printerModel = PrinterInfo.Model.QL_720NW;
    settings.port = PrinterInfo.Port.NET;
    settings.orientation = PrinterInfo.Orientation.LANDSCAPE;
    //settings.paperSize = PrinterInfo.PaperSize.CUSTOM;
    settings.align = PrinterInfo.Align.CENTER;
    settings.valign = PrinterInfo.VAlign.MIDDLE;
    settings.printMode = PrinterInfo.PrintMode.ORIGINAL;
    settings.numberOfCopies = 1;
    settings.labelNameIndex = LabelInfo.QL700.W62RB.ordinal();
    settings.isAutoCut = true;
    settings.isCutAtEnd = false;

    printer.setPrinterInfo(settings);


    // Connect, then print
    new Thread(new Runnable() {
        @Override
        public void run() {
            if (printer.startCommunication()) {
                Log.e("Tag: ", "Connection made.");
                PrinterStatus result = printer.printImage(bitmap);
                Log.e("Tag: ", "Printing!");
                if (result.errorCode != PrinterInfo.ErrorCode.ERROR_NONE) {
                    Log.d("TAG", "ERROR - " + result.errorCode);
                }
                printer.endCommunication();
            }
            else {
                Log.e("Tag: ", "Cannot make a connection.");
            }
        }
    }).start();
}

生成位图：

Bitmap encodeAsBitmap(String str) throws WriterException {

    QRCodeWriter writer = new QRCodeWriter();
    BitMatrix bitMatrix = writer.encode(str, BarcodeFormat.QR_CODE, 100, 100);

    int w = bitMatrix.getWidth();
    int h = bitMatrix.getHeight();
    int[] pixels = new int[w * h];

    for (int y = 0; y < h; y++) {
        for (int x = 0; x < w; x++) {
            pixels[y * w + x] = bitMatrix.get(x, y) ? Color.BLACK : Color.WHITE;
        }
    }

    Bitmap bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, w, 0, 0, w, h);
    return bitmap;
}

Answer 1

解决了这个问题，当我应该使用LabelInfo.QL700.W62.序号()时，我正在为LabelNameIndex使用LabelInfo.QL700.W62RB.ordinal()。

现在工作得很好！