sunmi_mtb 1.0.1

A Flutter plugin for MineSec SoftPOS (MSA) payment integration on Android. Supports checking installation, warm-up, activation, and sale transactions.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:sunmi_mtb/sunmi_mtb.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp, DeviceOrientation.portraitDown]);
  runApp(const MyApp());
}

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Sunmi MTB Example',
      theme: ThemeData(colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple), useMaterial3: true),
      home: const MsaDemoPage(),
    );
  }
}

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

  @override
  State<MsaDemoPage> createState() => _MsaDemoPageState();
}

class _MsaDemoPageState extends State<MsaDemoPage> {
  // ─── Configuration ──────────────────────────────────────────────
  final _msa = SunmiMtb();
  final _amountController = TextEditingController(text: '0.00');
  String _status = 'Ready';

  // ─── Actions ────────────────────────────────────────────────────

  Future<void> _checkInstalled() async {
    _setStatus('Checking...');
    final installed = await _msa.isInstalled();
    _setStatus(installed ? '✅ MineSec App is Installed!' : '❌ MineSec App is NOT Installed.');
  }

  Future<void> _warmUp() async {
    _setStatus('Warming up...');
    final result = await _msa.warmUp();
    _setStatus('WarmUp Result:\n$result');
  }

  Future<void> _activate() async {
    _setStatus('Activating...');
    // Replace with a real activation code from your backend
    final result = await _msa.activate('845903741039');
    _setStatus('Activation Result:\n$result');
  }

  Future<void> _sale() async {
    _setStatus('Initiating Sale...');
    final result = await _msa.saleTransaction(amount: _amountController.text);

    if (result == null) {
      _setStatus('Transaction returned no result.');
      return;
    }

    if (result.isError) {
      _setStatus(
        '❌ Transaction Failed\n'
        'Code: ${result.rspCode}\n'
        'Message: ${result.rspMsg}',
      );
      return;
    }

    _setStatus(
      '${result.isApproved ? "✅ Payment Approved!" : "⚠️ Status: ${result.tranStatus}"}\n'
      '─────────────────────\n'
      'Transaction ID: ${result.tranId ?? 'N/A'}\n'
      'Approval Code: ${result.approvalCode ?? 'N/A'}\n'
      'Amount: ${result.totalAmount ?? 'N/A'}\n'
      'Payment Method: ${result.paymentMethod ?? 'N/A'}\n'
      'Card: ${result.maskedAccount ?? 'N/A'}\n'
      'Entry Mode: ${result.entryMode ?? 'N/A'}\n'
      'RRN: ${result.rrn ?? 'N/A'}\n'
      'Trace: ${result.trace ?? 'N/A'}\n'
      'Merchant: ${result.mchName ?? 'N/A'}\n'
      'TID: ${result.acqTid ?? 'N/A'}\n'
      'MID: ${result.acqMid ?? 'N/A'}\n'
      'POS Msg ID: ${result.posMessageId ?? 'N/A'}\n'
      'Time: ${result.createdAt ?? 'N/A'}',
    );
  }

  void _setStatus(String status) {
    setState(() => _status = status);
  }

  // ─── UI ─────────────────────────────────────────────────────────

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('MineSec SoftPOS Demo'), backgroundColor: Theme.of(context).colorScheme.inversePrimary),
      body: SingleChildScrollView(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            // Status display
            Text('Status:', style: Theme.of(context).textTheme.titleMedium),
            Container(
              margin: const EdgeInsets.symmetric(vertical: 8),
              padding: const EdgeInsets.all(16),
              decoration: BoxDecoration(color: Colors.grey.shade200, borderRadius: BorderRadius.circular(8)),
              child: SelectableText(_status, style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 13)),
            ),
            const SizedBox(height: 20),

            // Action buttons
            ElevatedButton(onPressed: _checkInstalled, child: const Text('Check MSA App Installed')),
            const SizedBox(height: 10),
            ElevatedButton(onPressed: _warmUp, child: const Text('Warm Up SoftPOS')),
            const SizedBox(height: 10),
            ElevatedButton(onPressed: _activate, child: const Text('Activate POS (Sample Code)')),
            const SizedBox(height: 20),

            // Amount input
            TextField(
              controller: _amountController,
              decoration: const InputDecoration(labelText: 'Sale Amount', border: OutlineInputBorder()),
              keyboardType: const TextInputType.numberWithOptions(decimal: true),
            ),
            const SizedBox(height: 10),
            ElevatedButton(
              style: ElevatedButton.styleFrom(backgroundColor: Colors.deepPurple, foregroundColor: Colors.white),
              onPressed: _sale,
              child: const Text('Initiate Sale Transaction'),
            ),
          ],
        ),
      ),
    );
  }
}