in_app_subscription_bundle #

This plugin provides a reusable, BLoC-based solution for handling in-app purchases and subscriptions in Flutter applications. It simplifies integration with the in_app_purchase package for both Android and iOS, encapsulating complex subscription logic in an easy-to-use API.

Features #

• BLoC-based API for clean state management.
• Support for iOS and Android.
• Handles consumable and non-consumable purchases.
• Full support for auto-renewable subscriptions.
• Restore purchases with ease.

Installation #

Add this to your pubspec.yaml:

dependencies:
  flutter:
    sdk: flutter
  in_app_subscription_bundle: ^0.0.1

Usage #

Step 1: Import the Plugin #

import 'package:in_app_subscription_bundle/in_app_subscription_bundle.dart';

Step 2: Provide the BLoC #

Wrap your app or screen with BlocProvider to provide access to SubsBlocNew:

BlocProvider(
  create: (context) => SubsBlocNew(
    context: context,
    checkSubscriptionApi: 'YOUR_CHECK_SUBSCRIPTION_API_URL',
    checkSubscriptonApiRequestType: RequestType.get,
    saveSubscriptionApiUrl: 'YOUR_SAVE_SUBSCRIPTION_API_URL',
    subscriptionProductIds: ['product_1', 'product_2'],
  )..add(SubscriptionInitEvent(context: context)),
  child: MaterialApp(
    home: SubscriptionPage(),
  ),
);

Step 3: Build the UI with BLoC #

Use BlocBuilder and BlocListener to react to state changes:

class SubscriptionPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('In-App Subscription')),
      body: BlocListener<SubsBlocNew, SubscriptionState>(
        listener: (context, state) {
          if (state.errorMessage != null && state.errorMessage!.isNotEmpty) {
            ScaffoldMessenger.of(context).showSnackBar(
              SnackBar(content: Text(state.errorMessage!), backgroundColor: Colors.red),
            );
          }
        },
        child: BlocBuilder<SubsBlocNew, SubscriptionState>(
          builder: (context, state) {
            if (state.loader == true) {
              return Center(child: CircularProgressIndicator());
            }

            if (state.isSubscribed == true) {
              return Center(child: Text('You are successfully subscribed!'));
            }

            return Padding(
              padding: const EdgeInsets.all(16.0),
              child: Column(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  Text('Current Status: Not Subscribed', style: TextStyle(fontSize: 18)),
                  SizedBox(height: 20),
                  if (state.products.isNotEmpty)
                    ElevatedButton(
                      onPressed: () {
                        BlocProvider.of<SubsBlocNew>(context).add(
                          BuyProductEvent(context: context, selectedItem: state.selectedItem),
                        );
                      },
                      child: Text('Buy ${state.products[state.selectedItem].title}'),
                    ),
                ],
              ),
            );
          },
        ),
      ),
    );
  }
}