Table of Contents
InApp purchase, Have you ever tried implementing In-App purchases in your app ? Let’s get started now
What is InApp Purchase ?
While playing a game have you ever seen you need to make payment to go to next level or get extra chances to complete the game or any service for which you need to purchase some coins or any thing this process is said to be in-app purchase and in this blog let us try to explore how we will implement this in your flutter app.
pubspec.yaml :
Add required dependency to get started with
in_app_purchase: ^3.1.7
InApp Purchase Video Tutorial :
Go through the below video tutorial for more updates on implementation.
main.dart :
Specify the variants which you want users to purchase
const _variant = "amplifyabhi", "amplifyabhi pro";
Declare a empty products array to store the details
List<ProductDetails> _products = [];
Full Code :
Providing the full code for flutter in-app purchase.
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:in_app_purchase/in_app_purchase.dart';
void main()
runApp(const MyApp());
InAppPurchase _inAppPurchase = InAppPurchase.instance;
late StreamSubscription<dynamic> _streamSubscription;
List<ProductDetails> _products = [];
const _variant = "amplifyabhi", "amplifyabhi pro";
class MyApp extends StatefulWidget
const MyApp(Key? key) : super(key: key);
@override
State<MyApp> createState() => _MyAppState();
class _MyAppState extends State<MyApp>
@override
void initState()
// TODO: implement initState
super.initState();
Stream purchaseUpdated = InAppPurchase.instance.purchaseStream;
_streamSubscription = purchaseUpdated.listen((purchaseList)
_listenToPurchase(purchaseList, context);
, onDone: ()
_streamSubscription.cancel();
, onError: (error)
ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text("Error")));
);
initStore();
@override
Widget build(BuildContext context)
return MaterialApp(
home: Scaffold(
appBar: AppBar(title: Text("In-app Purchase"),),
body: Center(
child: TextButton(
onPressed: ()
_buy();
,
child: const Text("Pay"),
),
),
),
);
initStore() async
ProductDetailsResponse productDetailsResponse =
await _inAppPurchase.queryProductDetails(_variant);
if(productDetailsResponse.error==null)
setState(()
_products = productDetailsResponse.productDetails;
);
_listenToPurchase(List<PurchaseDetails> purchaseDetailsList, BuildContext context)
purchaseDetailsList.forEach((PurchaseDetails purchaseDetails) async
if (purchaseDetails.status == PurchaseStatus.pending)
ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text("Pending")));
else if (purchaseDetails.status == PurchaseStatus.error)
ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text("Error")));
else if (purchaseDetails.status == PurchaseStatus.purchased)
ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text("Purchased")));
);
_buy()
final PurchaseParam param = PurchaseParam(productDetails: _products[0]);
_inAppPurchase.buyConsumable(purchaseParam: param);
If you are having any query’s in flutter inapp purchase do let us know in comment section below.If you like this tutorial do like and share us for more interesting updates.
