yr_promo 0.0.4

yr_promo: ^0.0.4 copied to clipboard

example/lib/main.dart

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

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

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'YR-Promo Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'Flutter Demo YR-Promo'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final TextEditingController _promoCodeController = TextEditingController();
  YRPromocode? promocode;
  YRHttpException? error;
  bool isLoading = false;

  @override
  void initState() {
    super.initState();
    init();
  }

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

  void init() {
    // You must initialize the YRPromo instance before calling
    YRPromo.initialize(
      apiKey: '309a5214-34f6-4fb2-9cbd-42deec6d81a3', 
      appId: '18',
    );
  }

  void checkPromocode () async {
    if (!canCheck) return;
    promocode = null;
    error = null;
    setState(() {
      isLoading = true;
    });
    try {
      promocode = await YRPromo.instance.checkPromocode(
        promocode: _promoCodeController.text, 
        userId: 'test_user_id',
      );
    } on YRHttpException catch (e) {
      error = e;
    } catch (e) {
      print(e);
    }
    setState(() {
      isLoading = false;
    });
  }

  bool get canCheck => _promoCodeController.text.isNotEmpty;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: Text(widget.title),
      ),
      body: Center(
        child: isLoading
        ? const CircularProgressIndicator()
        : Padding(
          padding: const EdgeInsets.all(24.0),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              Row(
                children: [
                  Expanded(
                    child: TextField(
                      controller: _promoCodeController,
                      decoration: const InputDecoration(
                        border: OutlineInputBorder(
                          borderSide: BorderSide()
                        ),
                      ),
                      inputFormatters: [FilteringTextInputFormatter.allow(RegExp('[a-zA-Z0-9]'))],
                      onChanged: (_) {
                        setState(() {});
                      },
                    ),
                  ),
                  const SizedBox(width: 24),
                  IconButton(
                    onPressed: checkPromocode,
                    icon: Icon(
                      Icons.check, 
                      size: 32,
                      color: canCheck ? Colors.green : null,
                    ),
                  ),
                ],
              ),
              const SizedBox(height: 24),
              if (error != null)
              Text('Error: ${error!.message}', style: const TextStyle(color: Colors.red)),
              if (promocode != null)
              Column(
                mainAxisSize: MainAxisSize.min,
                children: [
                  const Text('Promocode info:', style: TextStyle(fontWeight: FontWeight.bold)),
                  Text('App Id: ${promocode!.appId}'),
                  Text('Name: ${promocode!.name}'),
                  Text('Value: ${promocode!.value}'),
                  Text('Expiration date: ${promocode?.expDate ?? '-'}'),
                ],
              ),
            ],
          ),
        ),
      ),
    );
  }
}