Hi,

Zebra ZQ220 plus printer, Android Studio, and Zebra Mobile TC21.
I can print text, etc., but I can't print the QR code through an ImageView image.
I have already checked the documentation and all the examples, but none of them work. They always print random characters. For example:

....
ImageView qrCodeImageView = findViewById(R.id.geraetiq_imageViewResult);
final Bitmap qrCodeBitmap = ((BitmapDrawable) qrCodeImageView.getDrawable()).getBitmap();

Connection connectprinter = new BluetoothConnection("XX:XX:XX:XX:XX:XX");
try {
    connectprinter.open();
    ZebraPrinter printer = ZebraPrinterFactory.getInstance(connectprinter);
    printer.reset();
    File tempFile = null;
    tempFile = File.createTempFile("temp_image", ".png", getCacheDir());
    FileOutputStream outputStream = new FileOutputStream(tempFile);
    qrCodeBitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream);
    outputStream.close();
    int x = 0;
    int y = 0;
    printer.printImage(tempFile.getAbsolutePath(), x, y,50,50,false);  // NOT WORK
    printer.printImage(new ZebraImageAndroid(qrCodeBitmap), 0, 0, qrCodeBitmap.getWidth(), qrCodeBitmap.getHeight(), false);  // NOT WORK
    String finalCommand = "! 0 50 20 100 1\r\nTEXT 4 0 20 20 " + "N: " + eTxt_NInterno.getText().toString() + "\r\nPRINT\r\n";
    printer.sendCommand(finalCommand); //WORK
    
    connectprinter.close();

} catch (ConnectionException e) {
    e.printStackTrace();
} catch (FileNotFoundException e) {
    e.printStackTrace();
} catch (IOException e) {
    e.printStackTrace();
} catch (ZebraPrinterLanguageUnknownException e) {
    throw new RuntimeException(e);
} finally {
    try {
        connectprinter.close();
    } catch (ConnectionException e) {
        e.printStackTrace();
    }
}

What am I doing wrong?!!

Thank you!