flutter_poolakey 2.0.1

flutter_poolakey is a wrapper around the `Poolakey` to use in Flutter. Poolakey is an Android In-App Billing SDK for `Cafe Bazaar` App Store. All specific features in payment of Cafe Bazaar, will be a [...]

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:flutter_poolakey/flutter_poolakey.dart';

import 'data.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Trivial Example for Flutter-Poolakey',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.green,
        brightness: Brightness.dark,
      ),
      home: const MyHomePage(title: 'Trivial Example for Flutter-Poolakey'),
    );
  }
}

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

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

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

class _MyHomePageState extends State<MyHomePage> {
  var _gasLevels = ["0", "1", "2", "3", "4", "_inf"];
  var _gasLevel = 4;
  var _vehicleState = "free";
  var _logText = "";
  var _waitingMode = true;
  var _textController = TextEditingController();
  Map<String, ProductItem> _productsMap = {};

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

  Future<void> _initShop() async {
    _productsMap["gas"] = ProductItem("gas", "buy_gas", true);
    _productsMap["dynamic_price"] =
        ProductItem("dynamic_price", "buy_gas", true);
    _productsMap["premium"] = ProductItem("premium", "upgrade_app", false);
    _productsMap["infinite_gas_monthly"] =
        ProductItem("infinite_gas_monthly", "get_infinite_gas", false);
    _productsMap["trial_subscription"] =
        ProductItem("trial_subscription", "get_infinite_gas_trial", false);
    var message = "";
    var rsaKey =
        "MIHNMA0GCSqGSIb3DQEBAQUAA4G7ADCBtwKBrwDbY/p0EgtJZHE6t9nVZ6QyzcR7e2O5RalVJx6Y+6Dc7n40FqdxAjHBYlptyZsdTg9r77JCS7UjEPXNuCHG5NCBLq/u7DWQQmh8otzMK6/P6nzsJUYvCqyNEu7cecaXmh5DgKlfRFpzNXBzBd4K3Xon8hBJjez/qdzvMtmHVFpdCSApUC0WTmT/kq1tDKLU1lDAEt10K83xZbi6lJWcAK20VUn+9KSVFxsr5WuXuWcCAwEAAQ==";
    bool connected = false;
    try {
      connected = await FlutterPoolakey.connect(rsaKey,
          onDisconnected: () => message = "Poolakey disconnected!");
    } on Exception catch (e) {
      setState(() {
        message = e.toString();
      });
    }
    if (!connected) {
      _log(message);
      return;
    }
    _reteriveProducts();
  }

  Future<void> _reteriveProducts() async {
    setState(() => _waitingMode = true);
    var purchases = await FlutterPoolakey.getAllPurchasedProducts();
    var subscribes = await FlutterPoolakey.getAllSubscribedProducts();
    var allPurchases = <PurchaseInfo>[];
    allPurchases.addAll(purchases);
    allPurchases.addAll(subscribes);
    for (var purchase in allPurchases) {
      _handlePurchase(purchase);
    }

    var skuDetailsList =
        await FlutterPoolakey.getInAppSkuDetails(_productsMap.keys.toList());

    for (var skuDetails in skuDetailsList) {
      if (skuDetails.sku == "trial_subscription") {
        var trialData = await FlutterPoolakey.checkTrialSubscription();
        var trial = TrialSubscription.fromSkuDetails(skuDetails);
        trial.isAvailable = trialData["isAvailable"];
        trial.trialPeriodDays = trialData["trialPeriodDays"];
        _productsMap[skuDetails.sku]?.skuDetails = skuDetails;
      } else {
        _productsMap[skuDetails.sku]?.skuDetails = skuDetails;
      }

      // inject purchaseInfo
      PurchaseInfo? purchaseInfo;
      for (var p in allPurchases) {
        if (p.productId == skuDetails.sku) purchaseInfo = p;
      }
      _productsMap[skuDetails.sku]?.purchaseInfo = purchaseInfo;

      _log(_productsMap.toString());
    }
    setState(() => _waitingMode = false);
  }

  Future<void> _handlePurchase(PurchaseInfo purchase) async {
    _log(purchase.originalJson + "\n");
    if (purchase.productId == "gas" || purchase.productId == "dynamic_price") {
      if (_gasLevel < 5) _gasLevel = (_gasLevel + 1).clamp(0, 4);
    } else if (purchase.productId == "infinite_gas_monthly" ||
        purchase.productId == "trial_subscription") {
      _gasLevel = 5;
    } else if (purchase.productId == "premium") {
      _vehicleState = "premium";
    }

    if (_productsMap[purchase.productId]!.consumable) {
      var result = await FlutterPoolakey.consume(purchase.purchaseToken);
      if (!result) {
        _log(result.toString());
      }
    }
    setState(() => _waitingMode = false);
  }

  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    final size = MediaQuery.of(context).size;
    final items = _productsMap.values.toList();
    final itemHeight = 80.0;
    final smallStyle = TextStyle(fontSize: 11);
    return Scaffold(
      body: Container(
          width: size.width,
          height: size.height,
          child: Stack(children: [
            Column(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              crossAxisAlignment: CrossAxisAlignment.stretch,
              children: [
                // Header
                Container(
                    color: Colors.green.withAlpha(44),
                    height: 128,
                    padding: EdgeInsets.fromLTRB(20, 30, 20, 8),
                    child: Row(
                      crossAxisAlignment: CrossAxisAlignment.center,
                      children: [
                        Column(
                          mainAxisAlignment: MainAxisAlignment.spaceBetween,
                          children: [
                            Image.asset("assets/$_vehicleState.png",
                                width: 110),
                            Image.asset(
                                "assets/gas${_gasLevels[_gasLevel]}.png",
                                width: 110)
                          ],
                        ),
                        SizedBox(width: 16),
                        Expanded(
                          child: Container(
                            alignment: Alignment.center,
                            child: SizedBox(
                              width: 128,
                              height: 56,
                              child: ElevatedButton(
                                child: Text("یه دوری بزن"),
                                onPressed: _drive,
                              ),
                            ),
                          ),
                        ),
                      ],
                    )),
                // List
                SizedBox(height: 6),
                for (var i = 0; i < items.length; i++)
                  _itemBuilder(items[i], smallStyle),
                SizedBox(height: 6),
                // Log View
                Expanded(
                  child: SingleChildScrollView(
                    child: Text(
                      _logText,
                      overflow: TextOverflow.visible,
                      style: smallStyle,
                    ),
                  ),
                )
              ],
            ),
            Positioned(
              right: 8,
              bottom: 4,
              width: 36,
              child: ElevatedButton(
                onPressed: _clearLog,
                child: Icon(Icons.delete),
                style: ElevatedButton.styleFrom(
                  shape: CircleBorder(),
                  padding: EdgeInsets.zero,
                ),
              ),
            ),
            _waitingMode
                ? Positioned(
                    top: 110,
                    left: 0,
                    right: 0,
                    height: items.length * itemHeight,
                    child: Container(
                      alignment: Alignment.center,
                      color: Theme.of(context).cardColor.withAlpha(180),
                      child: Text(
                        "لطفا کمی صبر کنید ...",
                        textDirection: TextDirection.rtl,
                      ),
                    ))
                : SizedBox(),
          ])),
    );
  }

  void _drive() {
    if (_gasLevel >= 5) return;
    _gasLevel = (_gasLevel - 1).clamp(0, 4);
    setState(() {});
  }

  Widget _itemBuilder(ProductItem item, TextStyle smallStyle) {
    var title = item.skuDetails == null ? "Title" : item.skuDetails!.title;
    var price = item.skuDetails == null ? "Price" : item.skuDetails!.price;
    return Stack(children: [
      Padding(
          padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 1),
          child: Card(
              margin: EdgeInsets.all(1),
              color: Theme.of(context).cardColor,
              child: InkWell(
                  onTap: () => _onItemTap(item),
                  child: Container(
                      padding: EdgeInsets.all(4),
                      child: IgnorePointer(
                          ignoring: true,
                          child: Row(
                              crossAxisAlignment: CrossAxisAlignment.start,
                              children: [
                                Column(
                                    mainAxisAlignment:
                                        MainAxisAlignment.spaceBetween,
                                    children: [
                                      Image.asset("assets/${item.icon}.png",
                                          width: 72),
                                      Text(price,
                                          style: smallStyle,
                                          textDirection: TextDirection.rtl)
                                    ]),
                                Expanded(
                                    child: Column(
                                        mainAxisAlignment:
                                            MainAxisAlignment.spaceAround,
                                        crossAxisAlignment:
                                            CrossAxisAlignment.end,
                                        children: [
                                      Text(title,
                                          textDirection: TextDirection.rtl),
                                      _getMessage(item, smallStyle)
                                    ])),
                              ])))))),
      item.id == "dynamic_price"
          ? Positioned(
              right: 8,
              bottom: 8,
              width: 240,
              height: 32,
              child: TextField(
                controller: _textController,
                decoration: InputDecoration(
                    border: OutlineInputBorder(),
                    hintTextDirection: TextDirection.rtl,
                    hintText: item.skuDetails?.description,
                    hintStyle: smallStyle),
              ))
          : SizedBox()
    ]);
  }

  _getMessage(ProductItem item, TextStyle smallStyle) {
    var description =
        item.skuDetails == null ? "Description" : item.skuDetails!.description;
    if (item.id == "dynamic_price") return SizedBox(height: 32);
    if (item.id == "trial_subscription") {
      if (item.skuDetails == null) return SizedBox(height: 32);
      if (item.skuDetails is TrialSubscription) {
        TrialSubscription trial = item.skuDetails as TrialSubscription;
        return Text(": مهلت استفاده ${trial.trialPeriodDays} روز",
            style: smallStyle);
      }
    }
    return Text(description,
        style: smallStyle, textDirection: TextDirection.rtl);
  }

  Future<void> _onItemTap(ProductItem item) async {
    if (item.skuDetails == null) return;
    setState(() => _waitingMode = true);
    var dynamicPriceToken =
        item.id == "dynamic_price" ? _textController.text : "";
    PurchaseInfo? purchaseInfo;
    try {
      purchaseInfo = await FlutterPoolakey.purchase(item.skuDetails!.sku,
          dynamicPriceToken: dynamicPriceToken);
    } catch (e) {
      _log(e.toString());
      setState(() => _waitingMode = false);
      return;
    }
    _handlePurchase(purchaseInfo);
  }

  void _log(String message) {
    _logText += message + "\n";
    print(message);
    setState(() {});
  }

  void _clearLog() {
    _logText = "";
    setState(() {});
  }

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