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lib/13/go/books/src/screens/book_details.dart

@@ -0,0 +1,77 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:url_launcher/link.dart';
+
+import '../data.dart';
+import 'author_details.dart';
+
+/// A screen to display book details.
+class BookDetailsScreen extends StatelessWidget {
+  /// Creates a [BookDetailsScreen].
+  const BookDetailsScreen({
+    super.key,
+    this.book,
+  });
+
+  /// The book to be displayed.
+  final Book? book;
+
+  @override
+  Widget build(BuildContext context) {
+    if (book == null) {
+      return const Scaffold(
+        body: Center(
+          child: Text('No book found.'),
+        ),
+      );
+    }
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(book!.title),
+      ),
+      body: Center(
+        child: Column(
+          children: <Widget>[
+            Text(
+              book!.title,
+              style: Theme.of(context).textTheme.headlineMedium,
+            ),
+            Text(
+              book!.author.name,
+              style: Theme.of(context).textTheme.titleMedium,
+            ),
+            TextButton(
+              onPressed: () {
+                Navigator.of(context).push<void>(
+                  MaterialPageRoute<void>(
+                    builder: (BuildContext context) =>
+                        AuthorDetailsScreen(author: book!.author),
+                  ),
+                );
+              },
+              child: const Text('View author (navigator.push)'),
+            ),
+            Link(
+              uri: Uri.parse('/author/${book!.author.id}'),
+              builder: (BuildContext context, FollowLink? followLink) =>
+                  TextButton(
+                onPressed: followLink,
+                child: const Text('View author (Link)'),
+              ),
+            ),
+            TextButton(
+              onPressed: () {
+                context.push('/author/${book!.author.id}');
+              },
+              child: const Text('View author (GoRouter.push)'),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}