ticker_search 1.0.0

A new Flutter package to search for tickers of companies, ETFs, and cryptocurrencies.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:stock_market_data/stock_market_data.dart';
import 'package:ticker_search/ticker_search.dart';

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

/// The root widget.
class MyApp extends StatelessWidget {
  const MyApp({super.key});
  @override
  Widget build(BuildContext context) => MaterialApp(
        title: 'Ticker Search Demo',
        theme: ThemeData.dark(),
        home: const MyHomePage(title: 'Ticker search demo'),
      );
}

/// The home page displays the last selected ticker and an add button.
/// Tapping the add button navigates to the search page.
class MyHomePage extends StatefulWidget {
  const MyHomePage({required this.title, super.key});
  final String title;
  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

/// State for MyHomePage.
class _MyHomePageState extends State<MyHomePage> {
  // Currently selected ticker.
  StockTicker selected = const StockTicker(symbol: '', description: '');
  // Holds the last query text (e.g. a suggestion button like "Companies" or a custom ticker).
  String lastQuery = '';
  // A shared scroll controller to preserve scroll position.
  final ScrollController scrollController = ScrollController();

  StockTicker simplerExampleSelected =
      const StockTicker(symbol: '', description: '');

  // List of suggestions used by the search widget.
  final List<TickerSuggestion> suggestions = [
    TickerSuggestion(const Icon(Icons.view_headline), 'Main', TickersList.main),
    TickerSuggestion(
        const Icon(Icons.euro), 'Euro ETFs', TickersList.europeanEtfs),
    TickerSuggestion(
        const Icon(Icons.business_sharp), 'Companies', TickersList.companies),
    TickerSuggestion(const Icon(Icons.precision_manufacturing_outlined),
        'Sectors', TickersList.sectors),
    TickerSuggestion(
        const Icon(Icons.workspaces_outline), 'Futures', TickersList.futures),
    TickerSuggestion(
        const Icon(Icons.computer), 'Cryptos', TickersList.cryptoCurrencies),
    TickerSuggestion(
        const Icon(Icons.language), 'Countries', TickersList.countries),
    TickerSuggestion(
        const Icon(Icons.account_balance_outlined), 'Bonds', TickersList.bonds),
    TickerSuggestion(
        const Icon(Icons.architecture_sharp), 'Sizes', TickersList.sizes),
  ];

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

  @override
  Widget build(BuildContext context) {
    final String ticketDescription =
        TickerResolve.getTickerDescription(selected);
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            // Display the currently selected ticker.
            Text('Selected: ${selected.symbol} > $ticketDescription'),
            const SizedBox(height: 20),
            // Tap this area to navigate to the search page.
            InkWell(
              child: Container(
                color: Colors.lightBlue.withValues(alpha: 0),
                padding: const EdgeInsets.only(
                  left: 40,
                  right: 40,
                  bottom: 30,
                ),
                child: const Icon(
                  Icons.add,
                  size: 40,
                ),
              ),
              onTap: () async {
                // Navigate to TickerSearchPage.
                final SearchResult? result = await Navigator.push(
                  context,
                  MaterialPageRoute(
                    builder: (context) => TickerSearchPage(
                      initialQuery: lastQuery,
                      scrollController: scrollController,
                      suggestions: suggestions,
                    ),
                  ),
                );
                if (result != null && result.tickers.isNotEmpty) {
                  setState(() {
                    // For demonstration, join all selected ticker symbols.
                    selected = result.getTicker;
                    // Update lastQuery only if a suggestion button was pressed.
                    if (result.suggestion != null) {
                      lastQuery = result.suggestion!;
                    }
                  });
                }
              },
            ),
            SizedBox(
              height: 50,
            ),
            Text('Simpler example'),
            Text(
                '${simplerExampleSelected.symbol} > ${simplerExampleSelected.description}'),

            // Tap this area to navigate to the simpler search page.
            InkWell(
              child: Container(
                color: Colors.lightBlue.withValues(alpha: 0),
                padding: const EdgeInsets.only(
                  left: 40,
                  right: 40,
                  bottom: 30,
                ),
                child: const Icon(
                  Icons.add,
                  size: 40,
                ),
              ),
              onTap: () async {
                // Navigate to TickerSearchPage with a simpler example.
                final SearchResult? result = await Navigator.push(
                  context,
                  MaterialPageRoute(
                    builder: (context) => TickerSearchPage(),
                  ),
                );
                if (result != null) {
                  setState(() {
                    simplerExampleSelected = result.getTicker;
                  });
                }
              },
            ),
          ],
        ),
      ),
    );
  }
}