如何将QR码打印到蓝牙打印机

Question

我正在尝试使用蓝牙打印机打印生成的QR码

这是我试图显示的方式

io.Copy

public class QrCodeCreator {

QrCodeCreator.getBitmapFromString(name);
    mmOutputStream.write(center);
    printPhoto(R.drawable.icon);
    mmOutputStream.write(msg.getBytes());
    byte[] command = Utilss.decodeBitmap(QrCodeCreator.getBitmapFromString(name));
    mmOutputStream.write(command);

}