swift_upi 0.0.3

swift_upi: ^0.0.3 copied to clipboard

example/lib/main.dart

import 'dart:convert';
import 'dart:developer';

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

import 'package:flutter/services.dart';
import 'package:swift_upi/swift_upi.dart';

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

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

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  final _swiftUpiPlugin = SwiftUpi();
  static const platform = MethodChannel('swift_upi');
  List<dynamic> upiApps = [];
  bool isLoading = true;

  String txnId = 'N/A';
  String responseCode = 'N/A';
  String txnRef = 'N/A';
  String status = 'N/A';
  String recUpiId = '9988776655@upi';

  @override
  void initState() {
    super.initState();
    initPlatformState();
    fetchUpiApps();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    // We also handle the message potentially returning null.
    try {
      platformVersion = await _swiftUpiPlugin.getPlatformVersion() ??
          'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  Future<void> fetchUpiApps() async {
    try {
      final List<dynamic> apps = await _swiftUpiPlugin.getAllUpiApps();
      // Process the list of UPI apps
      setState(() {
        upiApps = apps; // Update the state with the list of apps
        isLoading = false; // Set loading to false
      });
      for (var app in apps) {
        print('App Name: ${app['name']}, Package Name: ${app['packageName']}');
      }
    } on PlatformException catch (e) {
      print("Failed to get UPI apps: '${e.message}'.");
      setState(() {
        isLoading = false; // Update loading state even on error
      });
    }
  }

  void _openUpiApp(String packageName) async {
    try {
      final String? result = await _swiftUpiPlugin.launchUpiApp(packageName);
      print(result); // Handle success message
    } on PlatformException catch (e) {
      print("Failed to launch app: '${e.message}'.");
    }
  }

  // New method to start a transaction
  void _startTransaction(
      {required String recUpiId,
      required String recName,
      required String txnRefId,
      required String txnNote,
      required String amt,
      required String app}) async {
    Map<String, String> resultMap = {};

    try {
      final result = await _swiftUpiPlugin.startTransaction(
        receiverUpiId: recUpiId,
        // Replace with actual receiver UPI ID
        receiverName: recName,
        // Replace with actual receiver name
        transactionRefId: txnRefId,
        // Replace with a unique transaction reference ID (optional)
        transactionNote: txnNote,
        // Replace with a transaction note (optional)
        amount: amt,
        // Amount in INR (required)
        app: app, // Currency (default INR, optional)
      );

      if (result != null) {
        log(result, name: 'Transaction Result');
        // String modifiedResult = result!.replaceAll('&', '\t');
        // log(modifiedResult, name: 'Transaction Result');

        // Split the result string into key-value pairs
        List<String> params = result.split('&');
        for (String param in params) {
          List<String> keyValue = param.split('=');
          if (keyValue.length == 2) {
            resultMap[keyValue[0]] = keyValue[1];
          }
        }

        // // Extract values from the map
        // String txnId = resultMap['txnId'] ?? 'N/A';
        // String responseCode = resultMap['responseCode'] ?? 'N/A';
        // String txnRef = resultMap['txnRef'] ?? 'N/A';
        // String status = resultMap['Status'] ?? 'N/A';

        // Extract values from the map
        setState(() {
          txnId = resultMap['txnId'] ?? 'N/A';
          responseCode = resultMap['responseCode'] ?? 'N/A';
          txnRef = resultMap['txnRef'] ?? 'N/A';
          status = resultMap['Status'] ?? 'N/A';
        });

        // Log the values
        log('Transaction ID: $txnId', name: 'Transaction Details');
        log('Response Code: $responseCode', name: 'Transaction Details');
        log('Transaction Reference: $txnRef', name: 'Transaction Details');
        log('Status: $status', name: 'Transaction Details');
      }
    } on PlatformException catch (e) {
      print("Failed to start transaction: '${e.message}'.");
    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Column(
          children: [
            Text('Running on: $_platformVersion\n'),
            Text('Paying on: $recUpiId\n'),
            const SizedBox(height: 24),
            isLoading
                ? const Center(child: CircularProgressIndicator())
                : SizedBox(
                    height: MediaQuery.of(context).size.height * 0.1,
                    child: ListView.builder(
                      itemCount: upiApps.length,
                      shrinkWrap: true,
                      scrollDirection: Axis.horizontal,
                      itemBuilder: (context, index) {
                        return SizedBox(
                          width: MediaQuery.of(context).size.width * 0.25,
                          child: Column(
                            children: [
                              InkWell(
                                onTap: () {
                                  _startTransaction(
                                      recUpiId: recUpiId,
                                      recName: 'RAVI KANT',
                                      txnRefId: '123',
                                      txnNote: 'Check',
                                      amt: '1.00',
                                      app: upiApps[index]['packageName']);
                                },
                                child: _buildAppIcon(upiApps[index]['icon']),
                              ),
                              const SizedBox(height: 8),
                              Text(upiApps[index]['name'])
                              // ListTile(
                              //   leading: _buildAppIcon(upiApps[index]['icon']), // Build app icon
                              //   title: Text(upiApps[index]['name']),
                              //   // subtitle: Text(upiApps[index]['packageName']),
                              //   onTap: () {
                              //     // Handle app selection
                              //     _startTransaction(recUpiId: recUpiId, recName: 'RAVI KANT', txnRefId: '123', txnNote: 'Check', amt: '1.00', app: upiApps[index]['packageName']);
                              //     // _openUpiApp(upiApps[index]['packageName']);
                              //   },
                              // ),
                            ],
                          ),
                        );
                      },
                    ),
                  ),
            Card(
              elevation: 4,
              margin: const EdgeInsets.all(24),
              child: Container(
                width: double.infinity,
                padding: const EdgeInsets.all(16),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.center,
                  children: [
                    Container(
                      padding: const EdgeInsets.all(16),
                      child: Column(
                        children: [
                          const Text(
                            'Transaction ID',
                            style: TextStyle(fontWeight: FontWeight.bold),
                          ),
                          const SizedBox(height: 8),
                          Text(txnId),
                          const SizedBox(height: 8),
                          const Divider(),
                        ],
                      ),
                    ),
                    Container(
                      padding: const EdgeInsets.all(16),
                      child: Column(
                        children: [
                          const Text(
                            'Response Code',
                            style: TextStyle(fontWeight: FontWeight.bold),
                          ),
                          const SizedBox(height: 8),
                          Text(responseCode),
                          const SizedBox(height: 8),
                          const Divider(),
                        ],
                      ),
                    ),
                    Container(
                      padding: const EdgeInsets.all(16),
                      child: Column(
                        children: [
                          const Text(
                            'Transaction Reference',
                            style: TextStyle(fontWeight: FontWeight.bold),
                          ),
                          const SizedBox(height: 8),
                          Text(txnRef),
                          const SizedBox(height: 8),
                          const Divider(),
                        ],
                      ),
                    ),
                    Container(
                      padding: const EdgeInsets.all(16),
                      child: Column(
                        children: [
                          const Text(
                            'Status',
                            style: TextStyle(fontWeight: FontWeight.bold),
                          ),
                          const SizedBox(height: 8),
                          Text(status),
                          const SizedBox(height: 8),
                        ],
                      ),
                    ),
                  ],
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

// Helper function to build the app icon from byte array
Widget _buildAppIcon(dynamic iconData) {
  return Image.memory(
    Uint8List.fromList(iconData), // Convert byte array to Uint8List
    width: 40, // Set desired width
    height: 40, // Set desired height
    fit: BoxFit.cover, // Set the box fit
  );
}