posprinter_thermal 0.1.0

Premium Flutter SDK for Bluetooth and USB thermal printers: branded connection screens, paired-device discovery and ESC/POS test printing.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:posprinter_thermal/pos_printer_sdk.dart';

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();

  await PrinterSdk.initialize(
    primaryColor: const Color(0xFF0F766E),
    appBarTitle: 'Printer Settings',
  );

  runApp(const ExampleApp());
}

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Printer SDK Example',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        useMaterial3: true,
        colorScheme: ColorScheme.fromSeed(
          seedColor: PrinterSdkConfig.primaryColor,
        ),
        scaffoldBackgroundColor: PrinterSdkConfig.backgroundColor,
      ),
      home: const HomePage(),
    );
  }
}

/// Tiny landing page that demonstrates how to launch the SDK screen.
class HomePage extends StatelessWidget {
  const HomePage({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: SafeArea(
        child: Center(
          child: ConstrainedBox(
            constraints: const BoxConstraints(maxWidth: 420),
            child: Padding(
              padding: const EdgeInsets.all(24),
              child: Column(
                mainAxisAlignment: MainAxisAlignment.center,
                children: <Widget>[
                  Container(
                    width: 72,
                    height: 72,
                    decoration: BoxDecoration(
                      color: PrinterSdkConfig.primaryColor,
                      borderRadius: BorderRadius.circular(20),
                    ),
                    child: const Icon(
                      Icons.print_rounded,
                      color: Colors.white,
                      size: 36,
                    ),
                  ),
                  const SizedBox(height: 20),
                  Text(
                    'Thermal Printer SDK',
                    style: TextStyle(
                      fontSize: 22,
                      fontWeight: FontWeight.w700,
                      color: PrinterSdkConfig.textPrimaryColor,
                    ),
                  ),
                  const SizedBox(height: 8),
                  Text(
                    'Connect a Bluetooth or USB receipt printer, choose the '
                    'paper size and send a test page.',
                    textAlign: TextAlign.center,
                    style: TextStyle(
                      fontSize: 13,
                      height: 1.45,
                      color: PrinterSdkConfig.textSecondaryColor,
                    ),
                  ),
                  const SizedBox(height: 24),
                  FilledButton.icon(
                    onPressed: () {
                      Navigator.of(context).push(
                        MaterialPageRoute<void>(
                          builder: (_) => const CommonPrinterSettingScreen(),
                        ),
                      );
                    },
                    icon: const Icon(Icons.settings_rounded),
                    label: const Text('Open printer settings'),
                    style: FilledButton.styleFrom(
                      backgroundColor: PrinterSdkConfig.primaryColor,
                      minimumSize: const Size.fromHeight(48),
                      shape: RoundedRectangleBorder(
                        borderRadius: BorderRadius.circular(12),
                      ),
                    ),
                  ),
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }
}