walure_android_blt 0.0.1

A bluetooth connector SDK for Flutter Android apps with POS printer support

example/lib/main.dart

import 'package:flutter/material.dart';

import 'package:walure_android_blt/walure_android_blt.dart';
import 'package:walure_android_blt_example/bluetooth_list.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 _bltPrinter = WalureAndroidBlt.instance;

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      try {
        await _bltPrinter.initBluetooth();
        debugPrint('SDK initialized');
      } catch (e) {
        debugPrint(e.toString());
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Home(_bltPrinter),
      ),
    );
  }
}

class Home extends StatelessWidget {
  const Home(this._bltPrinter, {super.key});

  final WalureAndroidBlt _bltPrinter;

  @override
  Widget build(BuildContext context) {
    return SingleChildScrollView(
      child: SizedBox(
        height: MediaQuery.of(context).size.height,
        width: MediaQuery.of(context).size.width,
        child: Column(
          mainAxisSize: MainAxisSize.max,
          crossAxisAlignment: CrossAxisAlignment.center,
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            ElevatedButton(
              onPressed: () {
                Navigator.of(context).push(
                  MaterialPageRoute(
                    builder: (context) => const BluetoothListPage(),
                  ),
                );
              },
              child: const Text('Pair bluetooth device'),
            ),
            const SizedBox(height: 24),
            ElevatedButton(
              onPressed: () async {
                await _bltPrinter.printTestData();
              },
              child: const Text('Print test'),
            ),
            const SizedBox(height: 24),
            ElevatedButton(
              onPressed: () async {
                await _bltPrinter.disconnectDevice();
              },
              child: const Text('Disconnect device'),
            )
          ],
        ),
      ),
    );
  }
}