ezetap_sdk 0.1.9

Integrating the SDK will allow you to access Ezetap services in your application

example/lib/main.dart

import 'dart:async';
import 'dart:convert';

import 'package:eze_sdk_flutter_example/bill_widget.dart';
import 'package:ezetap_sdk/ezetap_sdk.dart';
import 'package:flutter/material.dart';
import 'package:screenshot/screenshot.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _result = 'Unknown';

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initSdk() async {
    var json = {};
    String? result = await EzetapSdk.initialize(jsonEncode(json));
    if (!mounted) return;
    setState(() {
      _result = result;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Ezetap Sample'),
        ),
        body: Center(
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.center,
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              ElevatedButton(onPressed: initSdk, child: const Text("SDK Init")),
              ElevatedButton(
                  onPressed: onPreparePressed,
                  child: const Text("Prepare Device")),
              ElevatedButton(
                  onPressed: onPressed, child: const Text("Print Bitmap")),
              ElevatedButton(
                  onPressed: onBarcodePressed, child: const Text("Scan Barcode")),
              ElevatedButton(
                  onPressed: checkPrinterStatus, child: const Text("Printer Status")),
              ElevatedButton(
                  onPressed: printTextReceipt, child: const Text("Print Text Receipt")),
              Expanded(
                flex: 1,
                child: SingleChildScrollView(
                    scrollDirection: Axis.vertical, child: Text(_result)),
              ),
            ],
          ),
        ),
      ),
    );
  }

  Future<void> onBarcodePressed() async {
    String? result = await EzetapSdk.scanBarcode();
    if (!mounted) return;
    setState(() {
      _result = result;
    });
  }

  Future<void> onPressed() async {
    final controller = ScreenshotController();

    ///@author TIJO THOMAS
    ///BillWidget is a dummy receipt widget to create base64
    final bytes =
        await controller.captureFromWidget(const BillWidget(), pixelRatio: 2.0);
    var base64Image = base64Encode(bytes);
    await EzetapSdk.printBitmap(base64Image);
  }

  Future<void> onPreparePressed() async {
    String? result = await EzetapSdk.prepareDevice();
    if (!mounted) return;
    setState(() {
      _result = result;
    });
  }

  Future<void> checkPrinterStatus() async {
    String? result = await EzetapSdk.checkPrinterStatus();
    if (!mounted) return;
    setState(() {
      _result = result;
    });
  }

  Future<void> printTextReceipt() async {
    var txtReceipt = "-----------------------------------\n" +
        "           Receipt\n" +
        "-----------------------------------\n" +
        "\n" +
        "Date: January 9, 2024\n" +
        "Time: 12:30 PM\n" +
        "\n" +
        "-----------------------------------\n" +
        "\n" +
        "Items Purchased:\n" +
        "1. Item Name        10.00\n" +
        "2. Another Item     15.50\n" +
        "3. Yet Another Item 8.75\n" +
        "\n" +
        "-----------------------------------\n" +
        "\n" +
        "Subtotal:           34.25\n" +
        "Tax (8%):           2.74\n" +
        "Total Amount:       36.99\n" +
        "\n" +
        "-----------------------------------\n" +
        "\n" +
        "Payment Method:     Credit Card\n" +
        "\n" +
        "Card Number:        **** **** **** 1234\n" +
        "Expiry Date:        12/25\n" +
        "Authorization Code: 56789\n" +
        "\n" +
        "-----------------------------------\n" +
        "\n" +
        "Thank you for your purchase!\n" +
        "Please come again.\n" +
        "\n" +
        "-----------------------------------";

    String? result = await EzetapSdk.printTextReceipt(txtReceipt);
    if (!mounted) return;
    setState(() {
      _result = result;
    });
  }
}