zcs_sdk_plugin 1.2.0

A Flutter plugin for ZCS SDK integration. Provides universal dynamic printing for receipts, invoices, and documents with QR codes, dual copies, and configurable layouts. Includes printRawText for simp [...]

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:zcs_sdk_plugin/zcs_sdk_plugin.dart';

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

/// ZCS SDK Plugin instance
final ZcsSdkPlugin _plugin = ZcsSdkPlugin();

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'ZCS SDK Plugin Demo',
      theme: ThemeData(useMaterial3: true, colorSchemeSeed: Colors.indigo),
      home: const DemoPage(),
    );
  }
}

class DemoPage extends StatefulWidget {
  const DemoPage({super.key});

  @override
  State<DemoPage> createState() => _DemoPageState();
}

class _DemoPageState extends State<DemoPage> {
  String _log = '';

  @override
  void initState() {
    super.initState();
    _init();
  }

  Future<void> _init() async {
    try {
      await _plugin.getPlatformVersion();
    } catch (e) {
      setState(() => _log = 'Init Error: $e');
    }
  }

  Future<void> _run(Future<dynamic> Function() call, String label) async {
    setState(() => _log = '⏳ $label…');
    final sw = Stopwatch()..start();
    try {
      final result = await call();
      setState(() =>
          _log = '✅ $label → ${result ?? "void"}  (${sw.elapsed.inMilliseconds} ms)');
    } catch (e) {
      setState(() =>
          _log = '❌ $label threw $e  (${sw.elapsed.inMilliseconds} ms)');
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('ZCS SDK Plugin Demo'),
      ),
      body: ListView(
        padding: const EdgeInsets.all(16),
        children: [
          ElevatedButton(
            onPressed: () =>
                _run(() => _plugin.initializeDevice(), 'initializeDevice'),
            child: const Text('Initialize Device'),
          ),
          ElevatedButton(
            onPressed: () => _run(() => _plugin.openDevice(), 'openDevice'),
            child: const Text('Open Device'),
          ),
          ElevatedButton(
            onPressed: () => _run(() => _plugin.printDynamic(
              bothCopies: true,
              {
                  'businessName': 'ZCS SDK Plugin',
                  'header': 'TEST RECEIPT',
                  'fields': {
                    'Date': DateTime.now().toString(),
                    'Message': 'Hello World',
                  },
                  'footer': 'Thank you for testing!',
                }), 'printDynamic (Text)'),
            child: const Text('Print Text'),
          ),
          ElevatedButton(
            onPressed: () => _run(
                () => _plugin.printDynamic({
                  'businessName': 'ZCS SDK Plugin',
                  'header': 'QR CODE TEST',
                  'qrCodeField': 'url',
                  'url': 'https://example.com',
                  'footer': 'Scan the QR code above',
                }), 'printDynamic (QR Code)'),
            child: const Text('Print QR Code'),
          ),
          ElevatedButton(
            onPressed: () =>
                _run(() => _plugin.getDeviceStatus(), 'getDeviceStatus'),
            child: const Text('Get Device Status'),
          ),
          ElevatedButton(
            onPressed: () =>
                _run(() => _plugin.getSerialNumber(), 'getSerialNumber'),
            child: const Text('Get Serial Number'),
          ),
          ElevatedButton(
            onPressed: () => _run(
                () => _plugin.printRawText(
                    'Hello, World!\nThis is a test print.\nLine 3\nLine 4\n'),
                'printRawText'),
            child: const Text('Print Raw Text'),
          ),
          ElevatedButton(
            onPressed: () => _run(() => _plugin.closeDevice(), 'closeDevice'),
            child: const Text('Close Device'),
          ),
          const SizedBox(height: 24),
          SelectableText(
            _log,
            style: const TextStyle(fontFamily: 'monospace'),
          ),
        ],
      ),
    );
  }
}