mirror of https://github.com/flutter/samples.git
129 lines
3.1 KiB
129 lines
3.1 KiB
// Copyright 2020, the Flutter project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'package:flutter/material.dart';
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import '../widgets/dialogs.dart';
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import '../widgets/third_party/adaptive_scaffold.dart';
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import 'dashboard.dart';
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import 'entries.dart';
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class HomePage extends StatefulWidget {
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final VoidCallback onSignOut;
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const HomePage({
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@required this.onSignOut,
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Key key,
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}) : super(key: key);
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@override
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_HomePageState createState() => _HomePageState();
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}
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class _HomePageState extends State<HomePage> {
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int _pageIndex = 0;
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@override
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Widget build(BuildContext context) {
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return AdaptiveScaffold(
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title: const Text('Dashboard App'),
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actions: [
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Padding(
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padding: const EdgeInsets.all(8.0),
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child: TextButton(
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style: TextButton.styleFrom(primary: Colors.white),
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onPressed: () => _handleSignOut(),
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child: const Text('Sign Out'),
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),
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)
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],
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currentIndex: _pageIndex,
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destinations: const [
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AdaptiveScaffoldDestination(title: 'Home', icon: Icons.home),
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AdaptiveScaffoldDestination(title: 'Entries', icon: Icons.list),
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AdaptiveScaffoldDestination(title: 'Settings', icon: Icons.settings),
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],
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body: _pageAtIndex(_pageIndex),
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onNavigationIndexChange: (newIndex) {
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setState(() {
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_pageIndex = newIndex;
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});
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},
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floatingActionButton:
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_hasFloatingActionButton ? _buildFab(context) : null,
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);
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}
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bool get _hasFloatingActionButton {
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if (_pageIndex == 2) return false;
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return true;
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}
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FloatingActionButton _buildFab(BuildContext context) {
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return FloatingActionButton(
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child: const Icon(Icons.add),
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onPressed: () => _handleFabPressed(),
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);
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}
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void _handleFabPressed() {
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if (_pageIndex == 0) {
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showDialog<NewCategoryDialog>(
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context: context,
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builder: (context) => const NewCategoryDialog(),
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);
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return;
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}
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if (_pageIndex == 1) {
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showDialog<NewEntryDialog>(
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context: context,
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builder: (context) => const NewEntryDialog(),
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);
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return;
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}
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}
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Future<void> _handleSignOut() async {
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var shouldSignOut = await showDialog<bool>(
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context: context,
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builder: (context) => AlertDialog(
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title: const Text('Are you sure you want to sign out?'),
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actions: [
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TextButton(
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child: const Text('No'),
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onPressed: () {
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Navigator.of(context).pop(false);
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},
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),
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TextButton(
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child: const Text('Yes'),
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onPressed: () {
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Navigator.of(context).pop(true);
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},
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),
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],
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),
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);
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if (!shouldSignOut) {
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return;
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}
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widget.onSignOut();
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}
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static Widget _pageAtIndex(int index) {
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if (index == 0) {
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return const DashboardPage();
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}
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if (index == 1) {
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return const EntriesPage();
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}
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return const Center(child: Text('Settings page'));
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}
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}
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