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| == Java API Guide for Printer Operations ==
| | {{Migrating|https://smartpossdk.gitbook.io/cloudpossdk/faq/printer/java-api-printer-operations}} |
| 1. '''Get PrinterDevice:'''
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| * Initiate the process by obtaining an instance of the PrinterDevice.
| |
| <syntaxhighlight lang="java" line='line'>
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| device = (PrinterDevice) POSTerminal.getInstance(mContext).getDevice(POSTerminal.DEVICE_NAME_PRINTER);
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| </syntaxhighlight>
| |
| 2. '''Open Device:'''
| |
| * Open the printer device to establish communication.
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| <syntaxhighlight lang="java" line='line'>
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| device.open();
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| </syntaxhighlight>
| |
| 3. '''Print Operations:'''
| |
| * '''Print Text:'''
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| ** Use the relevant Java API methods to print text documents.
| |
| <syntaxhighlight lang="java" line='line'>
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| try {
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| device.printText(
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| "Demo receipts" +
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| "MERCHANT COPY" +
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| "" +
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| "MERCHANT NAME" +
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| "SHXXXXXXCo.,LTD." +
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| "530310041315039" +
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| "TERMINAL NO" +
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| "50000045" +
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| "OPERATOR" +
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| "50000045" +
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| "");
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| } catch (DeviceException e) {
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| e.printStackTrace();
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| }
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| </syntaxhighlight>
| |
| * '''Print Bitmap:'''
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| ** Implement the API functionalities to print bitmap images.
| |
| <syntaxhighlight lang="java" line='line'>
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| Bitmap bitmap = null;
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| try {
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| bitmap = BitmapFactory.decodeStream(mContext.getResources().getAssets()
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| .open("printer_barcode_low.png"));
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| } catch (Exception e1) {
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| e1.printStackTrace();
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| }
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| try {
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| Format format = new Format();
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| format.setParameter(Format.FORMAT_ALIGN, Format.FORMAT_ALIGN_RIGHT);
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| device.printBitmap(format, bitmap);
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|
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| } catch (DeviceException e) {
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| e.printStackTrace();
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| }
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| </syntaxhighlight>
| |
| | |
| * '''Print HTML:'''
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| ** Utilize the API for printing HTML content.
| |
| <syntaxhighlight lang="java" line='line'>
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| try {
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| final String htmlContent = "<!DOCTYPE html>" +
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| "<html>" +
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| "<head>" +
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| " <style type=\"text/css\">" +
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| " * {" +
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| " margin:0;" +
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| " padding:0;" +
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| " }" +
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| " </style>" +
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| "</head>" +
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| "<body>" +
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| "Demo receipts<br />" +
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| "MERCHANT COPY<br />" +
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| "<hr/>" +
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| "MERCHANT NAME<br />" +
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| "SHXXXXXXCo.,LTD.<br />" +
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| "530310041315039<br />" +
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| "TERMINAL NO<br />" +
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| "50000045<br />" +
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| "OPERATOR<br />" +
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| "50000045<br />" +
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| "<hr />" +
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| "CARD NO<br />" +
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| "623020xxxxxx3994 I<br />" +
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| "ISSUER ACQUIRER<br />" +
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| "<br />" +
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| "TRANS TYPE<br />" +
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| "PAY SALE<br />" +
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| "PAY SALE<br />" +
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| "<hr/>" +
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| "<br />" +
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| "Demo receipts,do not sign!<br />" +
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| "<br />" +
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| "<br />" +
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| "<br />" +
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| "</body>" +
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| "</html>";
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| new Handler(Looper.getMainLooper()).post(new Runnable() {
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| @Override
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| public void run() {
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| try {
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| device.printHTML(mContext, htmlContent, null);
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| } catch (Exception e) {
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| e.printStackTrace();
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| }
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| }
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| });
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| } catch (Exception e) {
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| e.printStackTrace();
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| }
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| </syntaxhighlight>
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|
| |
| 4. '''Close Device:'''
| |
| * Properly close the printer device after operations to ensure system integrity and resource management.
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| <syntaxhighlight lang="java" line='line'>
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| device.close();
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| </syntaxhighlight>
| |
