kalapa_nfc_reader_sdk 1.0.3

A Flutter plugin designed to integrate with Kalapa's NFC Reader SDK, enabling seamless NFC functionality within Flutter applications.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'dart:async';
import 'package:flutter/services.dart';
import 'package:kalapa_nfc_reader_sdk/kalapa_nfc_reader_sdk.dart';

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

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

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

class _MyAppState extends State<MyApp> {
  final _kalapaNfcReaderSdk = KalapaNfcReaderSdk();
  String _sdkVersion = 'Unknown';
  bool _isNFCSupported = false;
  bool _isNFCEnabled = false;
  String _result = '';
  final TextEditingController _mrzController = TextEditingController();

  @override
  void initState() {
    super.initState();
    initPlatformState();
    configureSDK();
  }

  Future<void> initPlatformState() async {
    String sdkVersion;
    bool nfcSupported;
    bool nfcEnabled;

    try {
      sdkVersion = await _kalapaNfcReaderSdk.getSDKVersion();
      nfcSupported = await _kalapaNfcReaderSdk.isNFCSupported();
      nfcEnabled = await _kalapaNfcReaderSdk.isNFCEnabled();
    } on PlatformException {
      sdkVersion = 'Failed to get SDK version.';
      nfcSupported = false;
      nfcEnabled = false;
    }

    if (!mounted) return;

    setState(() {
      _sdkVersion = sdkVersion;
      _isNFCSupported = nfcSupported;
      _isNFCEnabled = nfcEnabled;
    });
  }

  Future<void> configureSDK() async {
    try {
      await _kalapaNfcReaderSdk.configureSDK(
        backgroundColor: "#1A191E",
        mainColor: "#409CFF",
        textColor: "#FFFFFF",
        btnTextColor: "#FFFFFF",
        language: "vi",
      );
    } on PlatformException catch (e) {
      setState(() {
        _result = 'Failed to configure SDK: ${e.message}';
      });
    }
  }

  Future<void> startWithUI() async {
    FocusManager.instance.primaryFocus?.unfocus();
    try {
      final result = await _kalapaNfcReaderSdk.startWithUI();
      setState(() {
        _result = 'Success: $result';
      });
    } on PlatformException catch (e) {
      setState(() {
        _result = 'Error: ${e.message}';
      });
    }
  }

  Future<void> startWithoutUI() async {
    FocusManager.instance.primaryFocus?.unfocus();
    final mrz = _mrzController.text;
    if (mrz.isEmpty) {
      setState(() {
        _result = 'Please enter MRZ data';
      });
      return;
    }

    try {
      final result = await _kalapaNfcReaderSdk.startWithoutUI(mrz);
      setState(() {
        _result = 'Success: $result';
      });
    } on PlatformException catch (e) {
      setState(() {
        _result = 'Error: ${e.message}';
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Kalapa NFC Reader SDK'),
        ),
        body: SingleChildScrollView(
          padding: const EdgeInsets.all(16.0),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
              Card(
                child: Padding(
                  padding: const EdgeInsets.all(16.0),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text('SDK Version: $_sdkVersion'),
                      const SizedBox(height: 8),
                      Text('NFC Supported: ${_isNFCSupported ? 'Yes' : 'No'}'),
                      const SizedBox(height: 8),
                      Text('NFC Enabled: ${_isNFCEnabled ? 'Yes' : 'No'}'),
                    ],
                  ),
                ),
              ),
              const SizedBox(height: 20),
              ElevatedButton(
                onPressed: _isNFCSupported ? startWithUI : null,
                child: const Text('Start NFC with UI'),
              ),
              const SizedBox(height: 20),
              TextField(
                controller: _mrzController,
                decoration: const InputDecoration(
                  labelText: 'MRZ Data',
                  border: OutlineInputBorder(),
                  hintText: 'Enter MRZ lines',
                ),
                maxLines: 3,
              ),
              const SizedBox(height: 10),
              ElevatedButton(
                onPressed: _isNFCSupported ? startWithoutUI : null,
                child: const Text('Start NFC without UI'),
              ),
              const SizedBox(height: 20),
              if (_result.isNotEmpty)
                Card(
                  color: _result.startsWith('Error')
                      ? Colors.red[50]
                      : Colors.green[50],
                  child: Padding(
                    padding: const EdgeInsets.all(16.0),
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Text(
                          'Result:',
                          style: TextStyle(
                            fontWeight: FontWeight.bold,
                            color: _result.startsWith('Error')
                                ? Colors.red
                                : Colors.green,
                          ),
                        ),
                        const SizedBox(height: 8),
                        Text(_result),
                      ],
                    ),
                  ),
                ),
            ],
          ),
        ),
      ),
    );
  }

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