smart_pos_r240 0.0.1

smart_pos_r240: ^0.0.1 copied to clipboard

example/lib/main.dart

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:smart_pos_r240/smart_pos_r240.dart';

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

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

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

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  final _smartPosR240Plugin = SmartPosR240();

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

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    // We also handle the message potentially returning null.
    try {
      platformVersion = await _smartPosR240Plugin.getPlatformVersion() ??
          'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Column(
          children: [
            Center(
              child: Text('Running on: $_platformVersion\n'),
            ),
            const SizedBox(height: 12),
            ElevatedButton(
                onPressed: _initializeSDK, child: const Text('Initialize SDK')),
            const SizedBox(height: 12),
            ElevatedButton(
                onPressed: _printTest, child: const Text('Print Test'))
          ],
        ),
      ),
    );
  }

  void _initializeSDK() async {
    try {
      await _smartPosR240Plugin.initSDK();
    } on PlatformException {
      print('Failed to initial SDK version.');
    }
  }

  void _printTest() async {
    try {
      final r = await _smartPosR240Plugin.printTest();
      print(r);
    } on PlatformException catch (e) {
      print('Failed to print $e.');
    }
  }
}