solana_wallet_plugin 0.0.1

A Flutter plugin that provides easy integration with Solana wallets for web applications. Supports multiple wallets including Phantom, Solflare, Slope, and more.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:solana_wallet_plugin/solana_wallet_plugin.dart';
import 'package:solana_wallet_plugin/widgets/wallet_selection_dialog.dart';

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

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Solana Wallet Plugin Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(),
    );
  }
}

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

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

class _MyHomePageState extends State<MyHomePage> {
  final _walletPlugin = SolanaWalletPlugin();
  String? _connectedWallet;
  String? _walletAddress;
  double? _balance;
  bool _isLoading = false;

  Future<void> _connectWallet() async {
    if (!mounted) return;

    final scaffoldMessenger = ScaffoldMessenger.of(context);
    final navigator = Navigator.of(context);

    showDialog(
      context: context,
      builder: (context) => WalletSelectionDialog(
        walletPlugin: _walletPlugin,
        onWalletSelected: (wallet) async {
          try {
            setState(() {
              _isLoading = true;
            });

            final publicKey = await _walletPlugin.connectWallet();
            final balance = await _walletPlugin.getBalance();

            if (mounted) {
              setState(() {
                _connectedWallet = wallet;
                _walletAddress = publicKey;
                _balance = balance;
                _isLoading = false;
              });
            }
          } catch (e) {
            if (mounted) {
              setState(() {
                _isLoading = false;
              });
              scaffoldMessenger.showSnackBar(
                SnackBar(
                  content:
                      Text('Failed to connect to $wallet: ${e.toString()}'),
                  backgroundColor: Colors.red,
                ),
              );
            }
          }
        },
      ),
    );
  }

  Future<void> _disconnectWallet() async {
    final scaffoldMessenger = ScaffoldMessenger.of(context);

    try {
      setState(() {
        _isLoading = true;
      });

      await _walletPlugin.disconnectWallet();

      if (mounted) {
        setState(() {
          _connectedWallet = null;
          _walletAddress = null;
          _balance = null;
          _isLoading = false;
        });
      }
    } catch (e) {
      if (mounted) {
        setState(() {
          _isLoading = false;
        });
        scaffoldMessenger.showSnackBar(
          SnackBar(
            content: Text('Failed to disconnect: ${e.toString()}'),
            backgroundColor: Colors.red,
          ),
        );
      }
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Solana Wallet Plugin Demo'),
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
      ),
      body: Center(
        child: Padding(
          padding: const EdgeInsets.all(16.0),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              if (_isLoading)
                const CircularProgressIndicator()
              else if (_connectedWallet == null)
                ElevatedButton(
                  onPressed: _connectWallet,
                  child: const Text('Connect Wallet'),
                )
              else
                Column(
                  children: [
                    Text(
                      'Connected to $_connectedWallet',
                      style: Theme.of(context).textTheme.headlineSmall,
                    ),
                    const SizedBox(height: 16),
                    if (_walletAddress != null)
                      Text(
                        'Address: ${_walletAddress!.substring(0, 4)}...${_walletAddress!.substring(_walletAddress!.length - 4)}',
                        style: Theme.of(context).textTheme.bodyLarge,
                      ),
                    if (_balance != null)
                      Text(
                        'Balance: ${_balance!.toStringAsFixed(4)} SOL',
                        style: Theme.of(context).textTheme.bodyLarge,
                      ),
                    const SizedBox(height: 24),
                    ElevatedButton(
                      onPressed: _disconnectWallet,
                      style: ElevatedButton.styleFrom(
                        backgroundColor: Colors.red,
                        foregroundColor: Colors.white,
                      ),
                      child: const Text('Disconnect'),
                    ),
                  ],
                ),
            ],
          ),
        ),
      ),
    );
  }
}