rootfi_tap_to_pay 0.1.1

rootfi_tap_to_pay: ^0.1.1 copied to clipboard

example/lib/main.dart

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

void main() => runApp(const ExampleApp());

class ExampleApp extends StatelessWidget {
  const ExampleApp({super.key});
  @override
  Widget build(BuildContext context) => MaterialApp(
        title: 'RootFi Tap-to-Pay',
        theme: ThemeData(useMaterial3: true),
        home: const HomePage(),
      );
}

class HomePage extends StatefulWidget {
  const HomePage({super.key});
  @override
  State<HomePage> createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  late final RootFiTapToPay tap;

  // Replace with the signed-in user's RootFi account number.
  static const myAccount = '0110000001';

  String _msg = 'Idle';
  TapStatus _status = TapStatus.idle;
  bool _receiving = false;

  @override
  void initState() {
    super.initState();
    // Use your sandbox key while testing.
    tap = RootFiTapToPay(apiKey: 'rf_test_xxx');
    tap.onStatus = (s) {
      setState(() => _status = s);
    };
    tap.onScanning = () {
      setState(() => _msg = 'Reading the other phone…');
    };
    tap.onSuccess = (r) {
      setState(
        () => _msg = 'Paid ${r.recipientName ?? ''} ✓ (${r.transferId})',
      );
    };
    tap.onFailure = (e) {
      setState(() => _msg = 'Failed: $e');
    };
  }

  Future<void> _toggleReceive() async {
    if (_receiving) {
      await tap.stop();
      setState(() {
        _receiving = false;
        _msg = 'Stopped';
      });
    } else {
      setState(() {
        _receiving = true;
        _msg = 'Waiting for a payer to tap…';
      });
      await tap.startReceiving(accountNumber: myAccount);
    }
  }

  Future<void> _pay() async {
    setState(() => _msg = 'Hold your phone near the payee…');
    await tap.startPaying(
      debitAccountNumber: myAccount,
      amount: 1500,
      narration: 'Tap-to-pay demo',
    );
  }

  @override
  void dispose() {
    tap.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) => Scaffold(
        appBar: AppBar(title: const Text('RootFi Tap-to-Pay')),
        body: Padding(
          padding: const EdgeInsets.all(24),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              Text('Status: ${_status.name}',
                  style: const TextStyle(fontWeight: FontWeight.bold)),
              const SizedBox(height: 8),
              Text(_msg, textAlign: TextAlign.center),
              const SizedBox(height: 32),
              FilledButton.icon(
                onPressed: _toggleReceive,
                icon: const Icon(Icons.nfc),
                label: Text(_receiving ? 'Stop receiving' : 'Receive payment'),
              ),
              const SizedBox(height: 16),
              FilledButton.icon(
                onPressed: _pay,
                icon: const Icon(Icons.contactless),
                label: const Text('Pay (scan a phone)'),
              ),
              const SizedBox(height: 16),
              OutlinedButton(
                onPressed: () => tap.stop(),
                child: const Text('Stop'),
              ),
            ],
          ),
        ),
      );
}