flutter_checkout_payment 1.4.0

This plugin is for Checkout online payment. It's implemented the native SDKs to work on Flutter environment.

example/lib/main.dart

import 'dart:async';
import 'package:flutter_credit_card/flutter_credit_card.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_checkout_payment/flutter_checkout_payment.dart';

import 'Keys.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: "Test",
      home: HomeScreen(),
    );
  }
}

class HomeScreen extends StatefulWidget {
  @override
  _HomeScreenState createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> {
  final GlobalKey<FormState> formKey = GlobalKey<FormState>();

  String _isInit = "false";

  String cardNumber = '';
  String expiryDate = '';
  String cardNameHolder = '';
  String cvv = '';
  bool cvvFocused = false;

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

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPaymentSDK() async {
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      bool? isSuccess =
          await FlutterCheckoutPayment.init(key: "${Keys.TEST_KEY}");
      //bool isSuccess =  await FlutterCheckoutPayment.init(key: "${Keys.TEST_KEY}", environment: Environment.LIVE);
      print(isSuccess);
      if (mounted) setState(() => _isInit = "true");
    } on PlatformException {
      if (mounted) setState(() => _isInit = "error");
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: Text('Checkout Payment Plugin'),
        ),
        body: SafeArea(
          child: Column(
            children: <Widget>[
              SizedBox(height: 10),
              Text("Checkout Init: $_isInit", style: TextStyle(fontSize: 18)),
              CreditCardWidget(
                cardNumber: cardNumber,
                expiryDate: expiryDate,
                cardHolderName: cardNameHolder,
                cvvCode: cvv,
                showBackView: cvvFocused,
                height: 180,
                width: 305,
                animationDuration: Duration(milliseconds: 1000),
                onCreditCardWidgetChange: (_) {},
              ),
              Expanded(
                child: SingleChildScrollView(
                  child: CreditCardForm(
                    cardNumber: cardNumber,
                    expiryDate: expiryDate,
                    cardHolderName: cardNameHolder,
                    cvvCode: cvv,
                    onCreditCardModelChange: _onModelChange,
                    themeColor: ThemeData.light().primaryColor,
                    formKey: formKey,
                  ),
                ),
              ),
              Wrap(
                alignment: WrapAlignment.spaceBetween,
                children: <Widget>[
                  ElevatedButton(
                    child: Padding(
                        padding: const EdgeInsets.all(12),
                        child: Text(
                          "Generate Token",
                          style: TextStyle(fontSize: 14),
                        )),
                    onPressed: _generateToken,
                  ),
                  ElevatedButton(
                    child: Padding(
                        padding: const EdgeInsets.all(12),
                        child: Text(
                          "Card Validation",
                          style: TextStyle(fontSize: 14),
                        )),
                    onPressed: _cardValidation,
                  ),
                  ElevatedButton(
                    child: Padding(
                        padding: const EdgeInsets.all(12),
                        child: Text(
                          "Generate Token with Address",
                          style: TextStyle(fontSize: 14),
                        )),
                    onPressed: _generateTokenWithAddress,
                  ),
                  ElevatedButton(
                    child: Padding(
                        padding: const EdgeInsets.all(12),
                        child: Text(
                          "Handle 3DS",
                          style: TextStyle(fontSize: 14),
                        )),
                    onPressed: _handleThreeDSChallenge,
                  ),
                ],
              ),
              SizedBox(height: 10),
            ],
          ),
        ));
  }

  void _onModelChange(CreditCardModel model) {
    setState(() {
      cardNumber = model.cardNumber;
      expiryDate = model.expiryDate;
      cardNameHolder = model.cardHolderName;
      cvv = model.cvvCode;
      cvvFocused = model.isCvvFocused;
    });
  }

  Future<void> _generateToken() async {
    try {
      // Show loading dialog
      showDialog(
        context: this.context,
        barrierDismissible: false,
        builder: (BuildContext context) {
          return WillPopScope(
              onWillPop: () => Future<bool>.value(false),
              child: AlertDialog(
                title: Text("Loading..."),
                content: Column(
                    mainAxisSize: MainAxisSize.min,
                    children: <Widget>[CircularProgressIndicator()]),
              ));
        },
      );

      String number = cardNumber.replaceAll(" ", "");
      String expiryMonth = expiryDate.substring(0, 2);
      String expiryYear = expiryDate.substring(3);

      print("$cardNumber, $cardNameHolder, $expiryMonth, $expiryYear, $cvv");

      CardTokenisationResponse? response =
          await FlutterCheckoutPayment.generateToken(
              number: number,
              name: cardNameHolder,
              expiryMonth: expiryMonth,
              expiryYear: expiryYear,
              cvv: cvv);

      // Hide loading dialog
      Navigator.pop(context);

      // Show result dialog
      showDialog(
        context: this.context,
        builder: (BuildContext context) {
          return AlertDialog(
            title: Text("Token"),
            content: Text("${response?.token ?? 'No token found'}"),
            actions: <Widget>[
              TextButton(
                child: Text("Close"),
                onPressed: () => Navigator.pop(context),
              )
            ],
          );
        },
      );
    } catch (ex) {
      // Hide loading dialog
      Navigator.pop(context);

      // Show error dialog
      showDialog(
        context: this.context,
        builder: (BuildContext context) {
          return AlertDialog(
            title: Text("Error"),
            content: Text("${ex.toString()}"),
            actions: <Widget>[
              TextButton(
                child: Text("Close"),
                onPressed: () => Navigator.pop(context),
              )
            ],
          );
        },
      );
    }
  }

  Future<void> _generateTokenWithAddress() async {
    try {
      // Show loading dialog
      showDialog(
        context: this.context,
        barrierDismissible: false,
        builder: (BuildContext context) {
          return WillPopScope(
              onWillPop: () => Future<bool>.value(false),
              child: AlertDialog(
                title: Text("Loading..."),
                content: Column(
                    mainAxisSize: MainAxisSize.min,
                    children: <Widget>[CircularProgressIndicator()]),
              ));
        },
      );

      String number = cardNumber.replaceAll(" ", "");
      String expiryMonth = expiryDate.substring(0, 2);
      String expiryYear = expiryDate.substring(3);

      print("$cardNumber, $cardNameHolder, $expiryMonth, $expiryYear, $cvv");

      CardTokenisationResponse? response =
          await FlutterCheckoutPayment.generateToken(
        number: number,
        name: cardNameHolder,
        expiryMonth: expiryMonth,
        expiryYear: expiryYear,
        cvv: cvv,
        billingModel: BillingModel(
          addressLine1: "address line 1",
          addressLine2: "address line 2",
          postcode: "postcode",
          country: "UK",
          city: "city",
          state: "state",
          phoneModel: PhoneModel(
            countryCode: "+44",
            number: "07123456789",
          ),
        ),
      );

      // Hide loading dialog
      Navigator.pop(context);

      // Show result dialog
      showDialog(
        context: this.context,
        builder: (BuildContext context) {
          return AlertDialog(
            title: Text("Token"),
            content: Text("${response?.token ?? 'No token found'}"),
            actions: <Widget>[
              TextButton(
                child: Text("Close"),
                onPressed: () => Navigator.pop(context),
              )
            ],
          );
        },
      );
    } catch (ex) {
      // Hide loading dialog
      Navigator.pop(context);

      // Show error dialog
      showDialog(
        context: this.context,
        builder: (BuildContext context) {
          return AlertDialog(
            title: Text("Error"),
            content: Text("${ex.toString()}"),
            actions: <Widget>[
              TextButton(
                  child: Text("Close"), onPressed: () => Navigator.pop(context))
            ],
          );
        },
      );
    }
  }

  Future<void> _handleThreeDSChallenge() async {
    try {
      // Show loading dialog
      showDialog(
        context: this.context,
        barrierDismissible: false,
        builder: (BuildContext context) {
          return WillPopScope(
              onWillPop: () => Future<bool>.value(false),
              child: AlertDialog(
                title: Text("Loading..."),
                content: Column(
                    mainAxisSize: MainAxisSize.min,
                    children: <Widget>[CircularProgressIndicator()]),
              ));
        },
      );

      String? response = await FlutterCheckoutPayment.handle3DS(
        authUrl: 'https://sandbox.checkout.com/api2/v2/3ds/acs/687805',
        successUrl: 'https://example.com/success',
        failUrl: 'https://example.com/fail',
      );

      // Hide loading dialog
      Navigator.pop(context);

      // Show result dialog
      showDialog(
        context: this.context,
        builder: (BuildContext context) {
          return AlertDialog(
            title: Text("Response"),
            content: Text("$response"),
            actions: <Widget>[
              TextButton(
                child: Text("Close"),
                onPressed: () => Navigator.pop(context),
              )
            ],
          );
        },
      );
    } catch (ex) {
      // Hide loading dialog
      Navigator.pop(context);

      // Show error dialog
      showDialog(
        context: this.context,
        builder: (BuildContext context) {
          return AlertDialog(
            title: Text("Error"),
            content: Text("${ex.toString()}"),
            actions: <Widget>[
              TextButton(
                child: Text("Close"),
                onPressed: () => Navigator.pop(context),
              )
            ],
          );
        },
      );
    }
  }

  Future<void> _cardValidation() async {
    try {
      // Show loading dialog
      showDialog(
        context: this.context,
        barrierDismissible: false,
        builder: (BuildContext context) {
          return WillPopScope(
              onWillPop: () => Future<bool>.value(false),
              child: AlertDialog(
                title: Text("Loading..."),
                content: Column(
                    mainAxisSize: MainAxisSize.min,
                    children: <Widget>[CircularProgressIndicator()]),
              ));
        },
      );

      String number = cardNumber.replaceAll(" ", "");

      print("$cardNumber");

      bool? isValid = await FlutterCheckoutPayment.isCardValid(number: number);

      // Hide loading dialog
      Navigator.pop(context);

      // Show result dialog
      showDialog(
        context: this.context,
        builder: (BuildContext context) {
          return AlertDialog(
            title: Text("Validation? "),
            content: Text("$isValid"),
            actions: <Widget>[
              TextButton(
                child: Text("Close"),
                onPressed: () => Navigator.pop(context),
              )
            ],
          );
        },
      );
    } catch (ex) {
      // Hide loading dialog
      Navigator.pop(context);

      // Show error dialog
      showDialog(
        context: this.context,
        builder: (BuildContext context) {
          return AlertDialog(
            title: Text("Error"),
            content: Text("${ex.toString()}"),
            actions: <Widget>[
              TextButton(
                child: Text("Close"),
                onPressed: () => Navigator.pop(context),
              )
            ],
          );
        },
      );
    }
  }
}