Android如何通过蓝牙打印机打印文本对齐和表格样式？

我正试图通过蓝牙打印机打印一些信息。我可以打印纯文本。但我不能添加任何对齐方式和文本格式。我还想打印一些数据，比如tableview

文本格式和对齐方式应如下：-

    String titleStr = "Title" + "\n\n";
    StringBuilder contentSb = new StringBuilder();
    contentSb.append("Item1      : 1221" + "\n");
    contentSb.append("Item2      : test" + "\n");
    StringBuilder content2Sb = new StringBuilder();
    content2Sb.append("BANK  : Us. 1.600" + "\n");
    String message  = "This is for test." + "\n\n";
    long milis      = System.currentTimeMillis();
    String date     = DateUtil.timeMilisToString(milis, "dd-MM-yy / HH:mm")  + "\n\n\n\n";

    byte[] titleByte    = titleStr.getBytes();
    byte[] content1Byte = contentSb.toString().getBytes();
    byte[] messageByte  = message.getBytes();
    byte[] content2Byte = content2Sb.toString().getBytes();
    byte[] dateByte     = date.getBytes();
    byte[] totalByte    = new byte[titleByte.length + content1Byte.length + messageByte.length +
                    content2Byte.length + dateByte.length];

    int offset = 0;
    System.arraycopy(titleByte, 0, totalByte, offset, titleByte.length);
    offset += titleByte.length;
    System.arraycopy(content1Byte, 0, totalByte, offset, content1Byte.length);
    offset += content1Byte.length;
    System.arraycopy(messageByte, 0, totalByte, offset, messageByte.length);
    offset += messageByte.length;
    System.arraycopy(content2Byte, 0, totalByte, offset, content2Byte.length);
    offset += content2Byte.length;
    System.arraycopy(dateByte, 0, totalByte, offset, dateByte.length);

    mmOutputStream.write(totalByte);

表格格式的数据应如下：-

    String titleStr = "Title" + "\n\n";
    StringBuilder contentSb = new StringBuilder();
    contentSb.append("Item1      : 1221" + "\n");
    contentSb.append("Item2      : test" + "\n");
    StringBuilder content2Sb = new StringBuilder();
    content2Sb.append("BANK  : Us. 1.600" + "\n");
    String message  = "This is for test." + "\n\n";
    long milis      = System.currentTimeMillis();
    String date     = DateUtil.timeMilisToString(milis, "dd-MM-yy / HH:mm")  + "\n\n\n\n";

    byte[] titleByte    = titleStr.getBytes();
    byte[] content1Byte = contentSb.toString().getBytes();
    byte[] messageByte  = message.getBytes();
    byte[] content2Byte = content2Sb.toString().getBytes();
    byte[] dateByte     = date.getBytes();
    byte[] totalByte    = new byte[titleByte.length + content1Byte.length + messageByte.length +
                    content2Byte.length + dateByte.length];

    int offset = 0;
    System.arraycopy(titleByte, 0, totalByte, offset, titleByte.length);
    offset += titleByte.length;
    System.arraycopy(content1Byte, 0, totalByte, offset, content1Byte.length);
    offset += content1Byte.length;
    System.arraycopy(messageByte, 0, totalByte, offset, messageByte.length);
    offset += messageByte.length;
    System.arraycopy(content2Byte, 0, totalByte, offset, content2Byte.length);
    offset += content2Byte.length;
    System.arraycopy(dateByte, 0, totalByte, offset, dateByte.length);

    mmOutputStream.write(totalByte);

我需要一些帮助

这里我包括我尝试的代码：-

    String titleStr = "Title" + "\n\n";
    StringBuilder contentSb = new StringBuilder();
    contentSb.append("Item1      : 1221" + "\n");
    contentSb.append("Item2      : test" + "\n");
    StringBuilder content2Sb = new StringBuilder();
    content2Sb.append("BANK  : Us. 1.600" + "\n");
    String message  = "This is for test." + "\n\n";
    long milis      = System.currentTimeMillis();
    String date     = DateUtil.timeMilisToString(milis, "dd-MM-yy / HH:mm")  + "\n\n\n\n";

    byte[] titleByte    = titleStr.getBytes();
    byte[] content1Byte = contentSb.toString().getBytes();
    byte[] messageByte  = message.getBytes();
    byte[] content2Byte = content2Sb.toString().getBytes();
    byte[] dateByte     = date.getBytes();
    byte[] totalByte    = new byte[titleByte.length + content1Byte.length + messageByte.length +
                    content2Byte.length + dateByte.length];

    int offset = 0;
    System.arraycopy(titleByte, 0, totalByte, offset, titleByte.length);
    offset += titleByte.length;
    System.arraycopy(content1Byte, 0, totalByte, offset, content1Byte.length);
    offset += content1Byte.length;
    System.arraycopy(messageByte, 0, totalByte, offset, messageByte.length);
    offset += messageByte.length;
    System.arraycopy(content2Byte, 0, totalByte, offset, content2Byte.length);
    offset += content2Byte.length;
    System.arraycopy(dateByte, 0, totalByte, offset, dateByte.length);

    mmOutputStream.write(totalByte);

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这与iText有什么关系？你谈论的是纯文本，而不是PDF。您的问题不包含任何代码。这是一个非常奇怪的问题。实际上我需要一个解决方案。我可以打印纯文本。但我不能格式化。如果有可能做到这一点，通过pdf，然后我会使用它。这就是我贴标签的原因itext@BrunoLowagie我包括了我的示例代码。是否可以先创建pdf，然后通过蓝牙以类似我的图像的格式打印？我知道如何使用iText创建pdf，我已经编写了数千个关于如何使用iText的示例，但这不是你的问题。