starPOS Printer Helper

Please be sure to read the documentation before using

We strongly recommend developers to use Android Studio to develop.The demo for Android Studio has full functionality, such as printing barcodes, printing qr code, printing text, printing pictures and printing tables.

Instruction

• FunctionActivity Home page of each function module
• AllActivity Print all ESC command supported by Sunmi Printer
• QrActivity api to print Qr Code
• BarCodeActivity Call api to print bar code
• TextActivity Call api to print text
• TableActivity Call api to print table， Bluetooth only plays table graphics
• HtmlActivity Call api to print bitmap html，
• BitmapActivity Call api to print image,picture
• BufferActivity Call api to print a simple small ticket content, and You can get the print result via transaction mode
• BlackLabelActivity Call api to print on black label paper
• LabelActivity Call api to print on "label paper"

Connect to the printer

private void init(){
    starPOSPrintHelper.getInstance().initStarPOSPrinterService(this);
    BluetoothUtil.connectBlueTooth(this);
}

Print text

private void printByBluTooth(String content) {
    if (isBold) {
        BluetoothUtil.sendData(ESCUtil.boldOn());
    } else {
        BluetoothUtil.sendData(ESCUtil.boldOff());
    }

    if (isUnderLine) {
        BluetoothUtil.sendData(ESCUtil.underlineWithOneDotWidthOn());
    } else {
        BluetoothUtil.sendData(ESCUtil.underlineOff());
    }

    if (record < 17) {
        BluetoothUtil.sendData(ESCUtil.singleByte());
        BluetoothUtil.sendData(ESCUtil.setCodeSystemSingle(codeParse(record)));
    } else {
        BluetoothUtil.sendData(ESCUtil.singleByteOff());
        BluetoothUtil.sendData(ESCUtil.setCodeSystem(codeParse(record)));
    }

    if(isTrueTypeFont){
        // print bitmap
        Bitmap bmp = BitmapUtil.textToBitmap(content, 384, 21, Typeface.SANS_SERIF, false);
        printImage(bmp);
    } else {
        BluetoothUtil.sendData(content.getBytes());
    }

    BluetoothUtil.sendData(ESCUtil.nextLine(3));
}

Print html content

Recommended approach for all type and all kind of printer

mBitmapContent = Bitmap.createBitmap(mWebview.getMeasuredWidth(), measuredHeight, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(this.mBitmapContent);
canvas.drawBitmap(this.mBitmapContent, 0.0f, mBitmapContent.getHeight(), new Paint());
mWebview.draw(canvas);

// 380px is ~6.5 cm print paper width
mBitmapContent = BitmapUtil.resizeImage(mBitmapContent, 380, false);

BluetoothUtil.sendData(ESCUtil.printRasterBitmap(mBitmapContent, 0));
BluetoothUtil.sendData(ESCUtil.nextLine(2));