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9f879b7
first commit
murthy-oss Apr 25, 2025
f82914a
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murthy-oss Apr 25, 2025
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9 changes: 5 additions & 4 deletions lib/main.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -3,26 +3,27 @@ import 'package:provider/provider.dart';
import 'screens/home_screen.dart';
import 'services/google_books_api.dart';

// Entry point of the Flutter application
void main() {
runApp(const MyApp());
}

// Root widget of the application
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);

@override
Widget build(BuildContext context) {
return MultiProvider(
// Providing dependencies to the widget tree using MultiProvider
providers: [
// Registering GoogleBooksApi as a ChangeNotifier for state management
ChangeNotifierProvider(create: (_) => GoogleBooksApi()),
],
child: MaterialApp(
debugShowCheckedModeBanner: false,
title: 'EBook reader Application',

theme: ThemeData(
primarySwatch: Colors.blue,
),
// Sets the HomeScreen as the initial screen
home: const HomeScreen(),
),
);
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182 changes: 182 additions & 0 deletions lib/screens/book_details.dart
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Original file line number Diff line number Diff line change
@@ -0,0 +1,182 @@
import 'package:flutter/material.dart';
import 'package:url_launcher/url_launcher.dart';

class BookDetail extends StatelessWidget {
final Map book;

const BookDetail({Key? key, required this.book}) : super(key: key);
// Function to open URLs in the browser
Future<void> _launchURL(String url) async {
try {
// Encode the URL to handle special characters
final Uri uri = Uri.parse(url);
if (!await launchUrl(uri)) {
throw Exception('Could not launch $uri');
}
} catch (e) {
// Show a snackbar with the error message
debugPrint('Error launching URL: $e');
// You might want to show this error to the user through a SnackBar
// or other UI element
}
}

@override
Widget build(BuildContext context) {
final volumeInfo = book['volumeInfo'];

// Extract URLs
final thumbnail =
volumeInfo['imageLinks'] != null
? volumeInfo['imageLinks']['thumbnail']
: null;

final previewLink = volumeInfo['previewLink'];
final downloadLink =
book['accessInfo'] != null
? book['accessInfo']['pdf'] != null &&
book['accessInfo']['pdf']['isAvailable']
? book['accessInfo']['pdf']['acsTokenLink']
: null
: null;

final buyLink = volumeInfo['infoLink'];

return Scaffold(
appBar: AppBar(title: Text(volumeInfo['title'] ?? 'No Title')),
body: SingleChildScrollView(
padding: const EdgeInsets.all(8.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// Display the image with a placeholder and error handling
thumbnail != null
? Center(
child: Image.network(
thumbnail,
fit: BoxFit.cover,
loadingBuilder: (context, child, loadingProgress) {
if (loadingProgress == null) {
return child;
}
return const Center(child: CircularProgressIndicator());
},
errorBuilder: (context, error, stackTrace) {
return const Icon(Icons.error, size: 100);
},
),
)
: const Icon(Icons.book, size: 100),
const SizedBox(height: 16),
Text(
volumeInfo['title'] ?? 'No Title',
style: const TextStyle(fontSize: 15, fontWeight: FontWeight.bold),
),
const SizedBox(height: 8),
Text(
'Author(s): ' +
(volumeInfo['authors'] != null
? volumeInfo['authors'].join(', ')
: 'Unknown'),
),
const SizedBox(height: 8),
Text(volumeInfo['description'] ?? 'No Description'),
const SizedBox(height: 16),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
// Preview Button
if (previewLink != null)
ElevatedButton(
onPressed: () {
_launchURL(previewLink);
},
child: const Text(
'Preview',
style: TextStyle(
fontSize: 10,
letterSpacing: 1.0,
fontWeight: FontWeight.bold,
),
textAlign: TextAlign.center,
),
style: ElevatedButton.styleFrom(
backgroundColor: Colors.green[700],
foregroundColor: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10),
),
padding: EdgeInsets.only(
right: 20,
left: 25,
top: 15,
bottom: 15,
),
),
),
const SizedBox(width: 10),
// Download Button
if (downloadLink != null)
ElevatedButton(
onPressed: () {
_launchURL(downloadLink);
},
child: const Text(
'Download',
style: TextStyle(
fontSize: 10,
letterSpacing: 1.0,
fontWeight: FontWeight.bold,
),
textAlign: TextAlign.center,
),
style: ElevatedButton.styleFrom(
backgroundColor: Colors.green[700],
foregroundColor: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10),
),
padding: EdgeInsets.only(
right: 20,
left: 25,
top: 15,
bottom: 15,
),
),
)
else
ElevatedButton(
onPressed: () {
_launchURL(buyLink);
},
child: const Text(
'More Info',
style: TextStyle(
fontSize: 10,
letterSpacing: 1.0,
fontWeight: FontWeight.bold,
),
textAlign: TextAlign.center,
),
style: ElevatedButton.styleFrom(
backgroundColor: Colors.green[700],
foregroundColor: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10),
),
padding: EdgeInsets.only(
right: 20,
left: 25,
top: 15,
bottom: 15,
),
),
),
],
),
],
),
),
);
}
}
106 changes: 70 additions & 36 deletions lib/screens/home_screen.dart
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Original file line number Diff line number Diff line change
@@ -1,73 +1,107 @@
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../services/google_books_api.dart';
import 'book_detail.dart'; // Import added
import './book_details.dart';

// HomeScreen is the main screen of the application where users can search for books
class HomeScreen extends StatelessWidget {
const HomeScreen({Key? key}) : super(key: key);

@override
Widget build(BuildContext context) {
// Access the GoogleBooksApi provider
final bookProvider = Provider.of<GoogleBooksApi>(context);
// Controller for the search input field
TextEditingController searchController = TextEditingController();

return Scaffold(
appBar: AppBar(
centerTitle: true,
title: const Text('EBook reader Application', style: TextStyle(fontSize: 25)),
backgroundColor: Colors.green[700],
toolbarHeight: 70,
elevation: 5,
shadowColor: Colors.green[700],
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(20))
title: const Text(
'EBook reader Application',
style: TextStyle(fontSize: 25),
),
backgroundColor: Colors.green[700],
foregroundColor: Colors.white,
toolbarHeight: 70,
elevation: 5,
shadowColor: Colors.green[700],
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
),
body: Column(
children: [
const SizedBox(width: 10),
const SizedBox(height: 10), // Adds spacing at the top
Padding(
padding: const EdgeInsets.all(10.0),
child: TextField(
// Binds the controller to the TextField
controller: searchController,
// Triggers search on submission
onSubmitted:
(value) => bookProvider.search(searchController.text),
decoration: InputDecoration(
border: OutlineInputBorder(),
labelText: 'Search for books',
labelStyle: TextStyle(
color: Color.fromARGB(255, 3, 131, 29),// Set the color you want here
focusedBorder: OutlineInputBorder(
borderSide: const BorderSide(
color: Color.fromARGB(255, 3, 131, 29),
),
borderRadius: BorderRadius.circular(10.0),
),
// Placeholder text
labelText: 'Search for books',
labelStyle: TextStyle(color: Color.fromARGB(255, 3, 131, 29)),
suffixIcon: IconButton(
icon: const Icon(Icons.search, size: 30, color: Color.fromARGB(255, 3, 131, 29),),
icon: const Icon(
Icons.search,
size: 30,
color: Color.fromARGB(255, 3, 131, 29),
),
onPressed: () {
// Triggers search on button press
bookProvider.search(searchController.text);
},
),
),
),
),
Expanded(
child: bookProvider.isLoading
? const Center(child: CircularProgressIndicator())
: ListView.builder(
itemCount: bookProvider.books.length,
itemBuilder: (context, index) {
final book = bookProvider.books[index];
return ListTile(
title: Text(book['volumeInfo']['title'] ?? 'No Title'),
subtitle: Text(book['volumeInfo']['authors'] != null
? book['volumeInfo']['authors'].join(', ')
: 'Unknown Author'),
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) =>
BookDetail(book: book),
),
);
},
);
},
),
// Checks if data is still loading
child:
bookProvider.isLoading
? const Center(
child: CircularProgressIndicator(
color: Color.fromARGB(255, 3, 131, 29),
),
)
: ListView.builder(
// Number of books to display
itemCount: bookProvider.books.length,
itemBuilder: (context, index) {
// Current book data
final book = bookProvider.books[index];
return ListTile(
// Book title
title: Text(
book['volumeInfo']['title'] ?? 'No Title',
),
// Authors list
subtitle: Text(
book['volumeInfo']['authors'] != null
? book['volumeInfo']['authors'].join(', ')
: 'Unknown Author', // Fallback if no authors are available
),
onTap: () {
// Navigate to the BookDetail screen when a book is tapped
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => BookDetail(book: book),
),
);
},
);
},
),
),
],
),
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