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Code Issues Releases Wiki Activity

Update navigation_and_routing sample to go_router (#2067)

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This is a new PR to update the navigation_and_routing sample to the
latest version of go_router. It is a based on
https://github.com/flutter/samples/pull/1437

---------

Co-authored-by: Brett Morgan <brettmorgan@google.com>
This commit is contained in:
John Ryan
2023-11-01 12:14:00 -07:00
committed by GitHub
parent 3e4e3bc784
commit 49eebf8c20
18 changed files with 332 additions and 733 deletions
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94
navigation_and_routing/lib/src/screens/books.dart
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@@ -4,12 +4,15 @@
import 'package:flutter/material.dart';
import '../data.dart';
import '../routing.dart';
import '../widgets/book_list.dart';
class BooksScreen extends StatefulWidget {
final Widget child;
final ValueChanged<int> onTap;
final int selectedIndex;
const BooksScreen({
required this.child,
required this.onTap,
required this.selectedIndex,
super.key,
});
@@ -28,20 +31,6 @@ class _BooksScreenState extends State<BooksScreen>
..addListener(_handleTabIndexChanged);
}
@override
void didChangeDependencies() {
super.didChangeDependencies();
final newPath = _routeState.route.pathTemplate;
if (newPath.startsWith('/books/popular')) {
_tabController.index = 0;
} else if (newPath.startsWith('/books/new')) {
_tabController.index = 1;
} else if (newPath == '/books/all') {
_tabController.index = 2;
}
}
@override
void dispose() {
_tabController.removeListener(_handleTabIndexChanged);
@@ -49,63 +38,34 @@ class _BooksScreenState extends State<BooksScreen>
}
@override
Widget build(BuildContext context) => Scaffold(
appBar: AppBar(
title: const Text('Books'),
elevation: 8,
bottom: TabBar(
controller: _tabController,
tabs: const [
Tab(
text: 'Popular',
icon: Icon(Icons.people),
),
Tab(
text: 'New',
icon: Icon(Icons.new_releases),
),
Tab(
text: 'All',
icon: Icon(Icons.list),
),
],
),
),
body: TabBarView(
Widget build(BuildContext context) {
_tabController.index = widget.selectedIndex;
return Scaffold(
appBar: AppBar(
title: const Text('Books'),
bottom: TabBar(
controller: _tabController,
children: [
BookList(
books: libraryInstance.popularBooks,
onTap: _handleBookTapped,
tabs: const [
Tab(
text: 'Popular',
icon: Icon(Icons.people),
),
BookList(
books: libraryInstance.newBooks,
onTap: _handleBookTapped,
Tab(
text: 'New',
icon: Icon(Icons.new_releases),
),
BookList(
books: libraryInstance.allBooks,
onTap: _handleBookTapped,
Tab(
text: 'All',
icon: Icon(Icons.list),
),
],
),
);
RouteState get _routeState => RouteStateScope.of(context);
void _handleBookTapped(Book book) {
_routeState.go('/book/${book.id}');
),
body: widget.child,
);
}
void _handleTabIndexChanged() {
switch (_tabController.index) {
case 1:
_routeState.go('/books/new');
case 2:
_routeState.go('/books/all');
case 0:
default:
_routeState.go('/books/popular');
break;
}
widget.onTap(_tabController.index);
}
}