ton 0.0.5

Ton Sdk for Flutter

example/lib/main.dart

import 'dart:convert';

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

import 'package:flutter/services.dart';
import 'package:ton/ton.dart';
import 'package:ton/tonconnect_ui/components/tonconnect_ui_provider.dart';

import 'tonconnect/tonconnect_test_page.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 _tonPlugin = Ton();

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

  // 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 _tonPlugin.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;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      builder: (context, child) {
        return TonConnectUiProvider(
          manifestUrl:
              'https://raw.githubusercontent.com/XaBbl4/pytonconnect/main/pytonconnect-manifest.json',
          child: child ?? const SizedBox.shrink(),
        );
      },
      home: Builder(
        builder: (context) => Scaffold(
          appBar: AppBar(
            title: const Text('Plugin example app'),
          ),
          body: Center(
            child: Padding(
              padding: const EdgeInsets.all(16),
              child: Column(
                children: [
                  Text('Running on: $_platformVersion\n'),
                  FutureBuilder(
                      future: _tonPlugin.randomMnemonic(password: "HELLOWORLD"),
                      builder: (context, snapshot) {
                        if (snapshot.hasError) {
                          return Text(snapshot.error.toString());
                        }

                        if (snapshot.hasData && snapshot.data != null) {
                          return Column(
                            children: [
                              Row(
                                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                                children: [
                                  const Text(
                                    'Mnemonic:',
                                    style: TextStyle(fontWeight: FontWeight.bold),
                                  ),
                                  Expanded(
                                    child: FutureBuilder(
                                      future:
                                      _tonPlugin.isMnemonicValid(snapshot.data!, 'HELLOWORLD'),
                                      builder: (context, snapshot) {
                                        if (snapshot.hasError) {
                                          return Text(
                                            snapshot.error.toString(),
                                            textAlign: TextAlign.end,
                                            maxLines: 1,
                                          );
                                        }

                                        if (snapshot.hasData && snapshot.data != null) {
                                          return Text(
                                            snapshot.data! ? 'Valid' : 'Invalid',
                                            textAlign: TextAlign.end,
                                            maxLines: 1,
                                          );
                                        }

                                        return const CircularProgressIndicator();
                                      },
                                    ),
                                  ),
                                ],
                              ),
                              Text(snapshot.data!.join(', ')),
                              const Divider(),
                              FutureBuilder(
                                future: _tonPlugin.toSeed(snapshot.data!),
                                builder: (context, snapshot) {
                                  if (snapshot.hasError) {
                                    return Text(snapshot.error.toString());
                                  }

                                  if (snapshot.hasData && snapshot.data != null) {
                                    return Column(
                                      children: [
                                        const Text(
                                          'Seed:',
                                          style: TextStyle(fontWeight: FontWeight.bold),
                                        ),
                                        Text(base64Encode(snapshot.data!)),
                                        const Divider(),
                                      ],
                                    );
                                  }

                                  return const Text('Converting mnemonic to seed...');
                                },
                              ),
                            ],
                          );
                        }

                        return const Text('Creating random mnemonic...');
                      }),
                  ElevatedButton(
                    onPressed: () {
                      Navigator.push(
                          context,
                          MaterialPageRoute(
                            builder: (context) => const TonConnectTestPage(),
                          ));
                    },
                    child: const Text('Ton Connect UI'),
                  )
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }
}