feat(favorites): Adicionado funcionalidade de favoritar

ios/Podfile.lock

@@ -1,25 +1,31 @@
 PODS:
   - Flutter (1.0.0)
+  - path_provider_ios (0.0.1):
+    - Flutter
   - shared_preferences_ios (0.0.1):
     - Flutter
   - url_launcher_ios (0.0.1):
     - Flutter
 
 DEPENDENCIES:
   - Flutter (from `Flutter`)
+  - path_provider_ios (from `.symlinks/plugins/path_provider_ios/ios`)
   - shared_preferences_ios (from `.symlinks/plugins/shared_preferences_ios/ios`)
   - url_launcher_ios (from `.symlinks/plugins/url_launcher_ios/ios`)
 
 EXTERNAL SOURCES:
   Flutter:
     :path: Flutter
+  path_provider_ios:
+    :path: ".symlinks/plugins/path_provider_ios/ios"
   shared_preferences_ios:
     :path: ".symlinks/plugins/shared_preferences_ios/ios"
   url_launcher_ios:
     :path: ".symlinks/plugins/url_launcher_ios/ios"
 
 SPEC CHECKSUMS:
   Flutter: f04841e97a9d0b0a8025694d0796dd46242b2854
+  path_provider_ios: 14f3d2fd28c4fdb42f44e0f751d12861c43cee02
   shared_preferences_ios: 548a61f8053b9b8a49ac19c1ffbc8b92c50d68ad
   url_launcher_ios: 839c58cdb4279282219f5e248c3321761ff3c4de
 

lib/src/app.dart

@@ -3,6 +3,7 @@ import 'package:provider/provider.dart';
 
 import 'package:tabnews/src/constants.dart';
 import 'package:tabnews/src/providers/content.dart';
+import 'package:tabnews/src/providers/favorites.dart';
 import 'package:tabnews/src/providers/user.dart';
 import 'package:tabnews/src/ui/layouts/tab.dart';
 
@@ -21,6 +22,10 @@ class App extends StatelessWidget {
           lazy: false,
           create: (_) => ContentProvider(),
         ),
+        ChangeNotifierProvider(
+          lazy: false,
+          create: (_) => FavoritesProvider(),
+        ),
       ],
       child: MaterialApp(
         title: 'TabNews',

lib/src/providers/favorites.dart

@@ -0,0 +1,80 @@
+import 'dart:convert';
+
+import 'package:flutter/material.dart';
+import 'package:tabnews/src/models/content.dart';
+import 'package:tabnews/src/preferences.dart';
+
+class FavoritesProvider extends ChangeNotifier {
+  static final FavoritesProvider _instance = FavoritesProvider._internal();
+
+  factory FavoritesProvider() {
+    return _instance;
+  }
+
+  FavoritesProvider._internal() {
+    _isLoading = false;
+    _isCreated = false;
+    _favorites = [];
+
+    _getSavedFavorites();
+  }
+
+  late bool _isLoading;
+  bool get isLoading => _isLoading;
+
+  late bool _isCreated;
+  bool get isCreated => _isCreated;
+
+  late List<Content> _favorites;
+  List<Content> get favorites => _favorites;
+
+  void _loading(bool value) {
+    _isLoading = value;
+    notifyListeners();
+  }
+
+  void _getSavedFavorites() async {
+    String savedFavorties = Preferences.getString('favorites') ?? '';
+
+    if (savedFavorties.isNotEmpty) {
+      List contents = jsonDecode(savedFavorties);
+      for (var favorite in contents) {
+        _favorites.add(Content.fromJson(favorite));
+      }
+      notifyListeners();
+    }
+  }
+
+  bool isFavorited(String id) {
+    bool isFavorite =
+        _favorites.where((element) => element.id == id).isNotEmpty;
+
+    if (isFavorite) {
+      return true;
+    }
+
+    return false;
+  }
+
+  void toggle(Content content) async {
+    _loading(true);
+    Content copyContent = content;
+
+    if (_favorites.isNotEmpty) {
+      if (_favorites.where((element) => element.id == content.id).isNotEmpty) {
+        _favorites.removeWhere((element) => element.id == content.id);
+      } else {
+        copyContent.body = null;
+        _favorites.add(copyContent);
+      }
+    } else {
+      copyContent.body = null;
+      _favorites.add(copyContent);
+    }
+
+    Preferences.setString('favorites', jsonEncode(_favorites));
+
+    _isLoading = false;
+    notifyListeners();
+  }
+}

lib/src/ui/layouts/page.dart

@@ -8,18 +8,20 @@ class PageLayout extends StatelessWidget {
   final Widget body;
   final bool isLoading;
   final Future<void> Function() onRefresh;
+  final List<Widget>? actions;
 
   const PageLayout({
     super.key,
     required this.body,
     required this.onRefresh,
     this.isLoading = false,
+    this.actions,
   });
 
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      appBar: const AppTopBar(),
+      appBar: AppTopBar(actions: actions),
       body: RefreshIndicator(
         color: context.isDarkMode ? Colors.white : Colors.black,
         onRefresh: onRefresh,

lib/src/ui/pages/content.dart

@@ -1,4 +1,6 @@
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:tabnews/src/providers/favorites.dart';
 import 'package:timeago/timeago.dart' as timeago;
 
 import 'package:tabnews/src/extensions/dark_mode.dart';
@@ -53,6 +55,22 @@ class _ContentPageState extends State<ContentPage> {
 
     return PageLayout(
       onRefresh: _getContent,
+      actions: isLoading
+          ? null
+          : [
+              Consumer<FavoritesProvider>(
+                builder: (context, provider, _) => IconButton(
+                  onPressed: () => provider.toggle(
+                    content,
+                  ),
+                  icon: Icon(
+                    provider.isFavorited(content.id!)
+                        ? Icons.favorite
+                        : Icons.favorite_border,
+                  ),
+                ),
+              ),
+            ],
       body: isLoading
           ? const AppProgressIndicator()
           : Padding(

lib/src/ui/pages/favorites.dart

@@ -1,4 +1,8 @@
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:tabnews/src/models/content.dart';
+import 'package:tabnews/src/providers/favorites.dart';
+import 'package:tabnews/src/ui/widgets/item_content.dart';
 
 class FavoritesPage extends StatefulWidget {
   const FavoritesPage({super.key});
@@ -10,8 +14,24 @@ class FavoritesPage extends StatefulWidget {
 class _FavoritesPageState extends State<FavoritesPage> {
   @override
   Widget build(BuildContext context) {
-    return const Center(
-      child: Text('Favoritos ainda em construção :3'),
-    );
+    return Consumer<FavoritesProvider>(builder: (context, provider, _) {
+      if (provider.favorites.isEmpty) {
+        return const Center(
+          child: Text('Você não possui favoritos!'),
+        );
+      } else {
+        List<Content> favorites = provider.favorites;
+
+        return ListView.builder(
+          padding: const EdgeInsets.all(10.0),
+          itemCount: favorites.length,
+          itemBuilder: (context, index) {
+            return ItemContent(
+              content: favorites[index],
+            );
+          },
+        );
+      }
+    });
   }
 }

lib/src/ui/pages/home.dart

@@ -68,7 +68,7 @@ class _HomePageState extends State<HomePage> {
         scrollController: widget.scrollController,
         builderDelegate: PagedChildBuilderDelegate<Content>(
           itemBuilder: (context, item, index) {
-            return ItemContent(index: index, content: item);
+            return ItemContent(content: item);
           },
           firstPageProgressIndicatorBuilder: (_) =>
               const AppProgressIndicator(),

lib/src/ui/pages/my_contents.dart

@@ -69,7 +69,6 @@ class _MyContentsPageState extends State<MyContentsPage> {
         builderDelegate: PagedChildBuilderDelegate<Content>(
           itemBuilder: (context, item, index) {
             return ItemContent(
-              index: index,
               content: item,
             );
           },

lib/src/ui/pages/profile_user.dart

@@ -100,7 +100,7 @@ class _ProfileUserPageState extends State<ProfileUserPage> {
                     pagingController: _pagingController,
                     builderDelegate: PagedChildBuilderDelegate<Content>(
                       itemBuilder: (context, item, index) {
-                        return ItemContent(index: index, content: item);
+                        return ItemContent(content: item);
                       },
                       firstPageProgressIndicatorBuilder: (_) =>
                           const AppProgressIndicator(),

lib/src/ui/pages/recents.dart

@@ -68,7 +68,7 @@ class _RecentsPageState extends State<RecentsPage> {
         scrollController: widget.scrollController,
         builderDelegate: PagedChildBuilderDelegate<Content>(
           itemBuilder: (context, item, index) {
-            return ItemContent(index: index, content: item);
+            return ItemContent(content: item);
           },
           firstPageProgressIndicatorBuilder: (_) =>
               const AppProgressIndicator(),

lib/src/ui/widgets/item_content.dart

@@ -8,12 +8,10 @@ import 'package:tabnews/src/extensions/dark_mode.dart';
 import 'package:tabnews/src/models/content.dart';
 
 class ItemContent extends StatelessWidget {
-  final int index;
   final Content content;
 
   const ItemContent({
     super.key,
-    required this.index,
     required this.content,
   });
 
@@ -47,28 +45,12 @@ class ItemContent extends StatelessWidget {
           mainAxisAlignment: MainAxisAlignment.start,
           crossAxisAlignment: CrossAxisAlignment.stretch,
           children: [
-            Row(
-              mainAxisAlignment: MainAxisAlignment.start,
-              crossAxisAlignment: CrossAxisAlignment.center,
-              children: [
-                Text(
-                  '${index + 1}.',
-                  style: const TextStyle().copyWith(
-                    fontSize: 15.0,
-                    fontWeight: FontWeight.w700,
-                  ),
-                ),
-                const SizedBox(width: 10.0),
-                Flexible(
-                  child: Text(
-                    isComment ? '${content.body}' : '${content.title}',
-                    style: const TextStyle().copyWith(
-                      fontSize: 15.0,
-                      fontWeight: FontWeight.w700,
-                    ),
-                  ),
-                ),
-              ],
+            Text(
+              isComment ? '${content.body}' : '${content.title}',
+              style: const TextStyle().copyWith(
+                fontSize: 15.0,
+                fontWeight: FontWeight.w700,
+              ),
             ),
             const SizedBox(height: 15.0),
             Column(

lib/src/ui/widgets/top_bar.dart

@@ -4,7 +4,9 @@ import 'package:flutter_svg/flutter_svg.dart';
 import 'package:tabnews/src/constants.dart';
 
 class AppTopBar extends StatelessWidget with PreferredSizeWidget {
-  const AppTopBar({super.key});
+  final List<Widget>? actions;
+
+  const AppTopBar({super.key, this.actions});
 
   @override
   Widget build(BuildContext context) {
@@ -22,6 +24,7 @@ class AppTopBar extends StatelessWidget with PreferredSizeWidget {
       ),
       elevation: 0,
       backgroundColor: AppColors.primaryColor,
+      actions: actions,
     );
   }
 

pubspec.yaml

@@ -1,5 +1,5 @@
 name: tabnews
-description: A new Flutter project.
+description: TabNews App made with Flutter
 
 # The following line prevents the package from being accidentally published to
 # pub.dev using `flutter pub publish`. This is preferred for private packages.