Merge pull request #54 from Iconica-Development/4.0.0

Improve flutter_timeline for safino usage

.github/workflows/melos-component-ci.yml

@@ -10,3 +10,5 @@ jobs:
     uses: Iconica-Development/.github/.github/workflows/melos-ci.yml@master
     secrets: inherit
     permissions: write-all
+    with:
+      flutter_version: 3.19.6

CHANGELOG.md

@@ -1,3 +1,28 @@
+## 4.0.0
+
+- Add a serviceBuilder to the userstory configuration
+- Add a listHeaderBuilder for showing a header at the top of the list of posts in the timeline
+- Add a getUserId function to retrieve the userId when needed in the userstory configuration
+- Fix the timelinecategory selection by removing the categories with key null
+- Set an optional max length on the default post title input field
+- Add a postCreationFloatingActionButtonColor to the timeline theme to set the color of the floating action button
+- Add a post and a category to the postViewOpenPageBuilder function
+- Add a refresh functionality to the timeline with a pull to refresh callback to allow additional functionality when refreshing the timeline
+- Use the adaptive variants of the material elements in the timeline
+- Change the default blue color to the primary color of the Theme.of(context) in the timeline
+- Change the TimelineTranslations constructor to require all translations or use the TimelineTranslations.empty constructor if you don't want to specify all translations
+- Add a TimelinePaddingOptions class to store the padding options for the timeline
+- fix the avatar size to match the new design
+- Add the iconbutton for image uploading back to the ReactionBottom
+- Fix category key is correctly used for saving timeline posts and category title is shown everywhere
+- Fix when clicking on post delete in the post screen of the userstory it will now navigate back to the timeline and delete the post
+- Fix like icon being used for both like and unliked posts
+- Fix post creator can only like the post once and after it is actually created
+- Change the CategorySelectorButton to use more styling options and allow for an icon to be shown
+- Fix incorrect timeline reaction name
+- Add a dialog for post deletion confirmation
+- Add a callback method to determine if a user can delete posts that gets called when needed
+
 ## 3.0.1
 
 - Fixed postOverviewScreen not displaying the creators name.

packages/flutter_timeline/example/lib/config/config.dart

@@ -7,13 +7,15 @@ TimelineUserStoryConfiguration getConfig(TimelineService service) {
     userId: 'test_user',
     optionsBuilder: (context) => options,
     enablePostOverviewScreen: false,
+    canDeleteAllPosts: (_) => true,
   );
 }
 
 var options = TimelineOptions(
   textInputBuilder: null,
-  padding: const EdgeInsets.all(20).copyWith(top: 28),
+  paddings: TimelinePaddingOptions(
-  allowAllDeletion: true,
+    mainPadding: const EdgeInsets.all(20).copyWith(top: 28),
+  ),
   categoriesOptions: CategoriesOptions(
     categoriesBuilder: (context) => [
       const TimelineCategory(

packages/flutter_timeline/lib/src/flutter_timeline_gorouter_userstory.dart

@@ -2,6 +2,7 @@
 //
 // SPDX-License-Identifier: BSD-3-Clause
 
+import 'package:collection/collection.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_timeline/flutter_timeline.dart';
 import 'package:flutter_timeline/src/go_router.dart';
@@ -28,10 +29,13 @@ List<GoRoute> getTimelineStoryRoutes({
     GoRoute(
       path: TimelineUserStoryRoutes.timelineHome,
       pageBuilder: (context, state) {
+        var service = config.serviceBuilder?.call(context) ?? config.service;
         var timelineScreen = TimelineScreen(
-          userId: config.userId,
+          userId: config.getUserId?.call(context) ?? config.userId,
           onUserTap: (user) => config.onUserTap?.call(context, user),
-          service: config.service,
+          allowAllDeletion: config.canDeleteAllPosts?.call(context) ?? false,
+          onRefresh: config.onRefresh,
+          service: service,
           options: config.optionsBuilder(context),
           onPostTap: (post) async =>
               config.onPostTap?.call(context, post) ??
@@ -43,7 +47,11 @@ List<GoRoute> getTimelineStoryRoutes({
         );
 
         var button = FloatingActionButton(
-          backgroundColor: const Color(0xff71C6D1),
+          backgroundColor: config
+                  .optionsBuilder(context)
+                  .theme
+                  .postCreationFloatingActionButtonColor ??
+              Theme.of(context).primaryColor,
           onPressed: () async => context.push(
             TimelineUserStoryRoutes.timelineCategorySelection,
           ),
@@ -67,9 +75,9 @@ List<GoRoute> getTimelineStoryRoutes({
                     config
                         .optionsBuilder(context)
                         .translations
-                        .timeLineScreenTitle!,
+                        .timeLineScreenTitle,
-                    style: const TextStyle(
+                    style: TextStyle(
-                      color: Color(0xff71C6D1),
+                      color: Theme.of(context).primaryColor,
                       fontSize: 24,
                       fontWeight: FontWeight.w800,
                     ),
@@ -89,10 +97,12 @@ List<GoRoute> getTimelineStoryRoutes({
           categories: config
                   .optionsBuilder(context)
                   .categoriesOptions
-              .categoriesBuilder!(context),
+                  .categoriesBuilder
+                  ?.call(context) ??
+              [],
           onCategorySelected: (category) async {
             await context.push(
-              TimelineUserStoryRoutes.timelinepostCreation(category.title),
+              TimelineUserStoryRoutes.timelinepostCreation(category.key ?? ''),
             );
           },
         );
@@ -113,9 +123,9 @@ List<GoRoute> getTimelineStoryRoutes({
                   leading: backButton,
                   backgroundColor: const Color(0xff212121),
                   title: Text(
-                    config.optionsBuilder(context).translations.postCreation!,
+                    config.optionsBuilder(context).translations.postCreation,
-                    style: const TextStyle(
+                    style: TextStyle(
-                      color: Color(0xff71C6D1),
+                      color: Theme.of(context).primaryColor,
                       fontSize: 24,
                       fontWeight: FontWeight.w800,
                     ),
@@ -129,15 +139,30 @@ List<GoRoute> getTimelineStoryRoutes({
     GoRoute(
       path: TimelineUserStoryRoutes.timelineView,
       pageBuilder: (context, state) {
-        var post =
+        var service = config.serviceBuilder?.call(context) ?? config.service;
-            config.service.postService.getPost(state.pathParameters['post']!);
+        var post = service.postService.getPost(state.pathParameters['post']!);
+        var category = config.optionsBuilder
+            .call(context)
+            .categoriesOptions
+            .categoriesBuilder
+            ?.call(context)
+            .firstWhereOrNull(
+              (element) => element.key == post?.category,
+            );
 
         var timelinePostWidget = TimelinePostScreen(
-          userId: config.userId,
+          userId: config.getUserId?.call(context) ?? config.userId,
+          allowAllDeletion: config.canDeleteAllPosts?.call(context) ?? false,
           options: config.optionsBuilder(context),
-          service: config.service,
+          service: service,
           post: post!,
-          onPostDelete: () => config.onPostDelete?.call(context, post),
+          onPostDelete: () async =>
+              config.onPostDelete?.call(context, post) ??
+              () async {
+                await service.postService.deletePost(post);
+                if (!context.mounted) return;
+                context.go(TimelineUserStoryRoutes.timelineHome);
+              }.call(),
           onUserTap: (user) => config.onUserTap?.call(context, user),
         );
 
@@ -150,16 +175,21 @@ List<GoRoute> getTimelineStoryRoutes({
         return buildScreenWithoutTransition(
           context: context,
           state: state,
-          child: config.postViewOpenPageBuilder
+          child: config.postViewOpenPageBuilder?.call(
-                  ?.call(context, timelinePostWidget, backButton) ??
+                context,
+                timelinePostWidget,
+                backButton,
+                post,
+                category,
+              ) ??
               Scaffold(
                 appBar: AppBar(
                   leading: backButton,
                   backgroundColor: const Color(0xff212121),
                   title: Text(
-                    post.category ?? 'Category',
+                    category?.title ?? post.category ?? 'Category',
-                    style: const TextStyle(
+                    style: TextStyle(
-                      color: Color(0xff71C6D1),
+                      color: Theme.of(context).primaryColor,
                       fontSize: 24,
                       fontWeight: FontWeight.w800,
                     ),
@@ -174,20 +204,20 @@ List<GoRoute> getTimelineStoryRoutes({
       path: TimelineUserStoryRoutes.timelinePostCreation,
       pageBuilder: (context, state) {
         var category = state.pathParameters['category'];
+        var service = config.serviceBuilder?.call(context) ?? config.service;
         var timelinePostCreationWidget = TimelinePostCreationScreen(
-          userId: config.userId,
+          userId: config.getUserId?.call(context) ?? config.userId,
           options: config.optionsBuilder(context),
-          service: config.service,
+          service: service,
           onPostCreated: (post) async {
-            var newPost = await config.service.postService.createPost(post);
+            var newPost = await service.postService.createPost(post);
-            if (context.mounted) {
+            if (!context.mounted) return;
             if (config.afterPostCreationGoHome) {
               context.go(TimelineUserStoryRoutes.timelineHome);
             } else {
               await context
                   .push(TimelineUserStoryRoutes.timelineViewPath(newPost.id));
             }
-            }
           },
           onPostOverview: (post) async => context.push(
             TimelineUserStoryRoutes.timelinePostOverview,
@@ -216,9 +246,9 @@ List<GoRoute> getTimelineStoryRoutes({
                   backgroundColor: const Color(0xff212121),
                   leading: backButton,
                   title: Text(
-                    config.optionsBuilder(context).translations.postCreation!,
+                    config.optionsBuilder(context).translations.postCreation,
-                    style: const TextStyle(
+                    style: TextStyle(
-                      color: Color(0xff71C6D1),
+                      color: Theme.of(context).primaryColor,
                       fontSize: 24,
                       fontWeight: FontWeight.w800,
                     ),
@@ -233,16 +263,15 @@ List<GoRoute> getTimelineStoryRoutes({
       path: TimelineUserStoryRoutes.timelinePostOverview,
       pageBuilder: (context, state) {
         var post = state.extra! as TimelinePost;
-
+        var service = config.serviceBuilder?.call(context) ?? config.service;
         var timelinePostOverviewWidget = TimelinePostOverviewScreen(
           options: config.optionsBuilder(context),
-          service: config.service,
+          service: service,
           timelinePost: post,
           onPostSubmit: (post) async {
-            await config.service.postService.createPost(post);
+            await service.postService.createPost(post);
-            if (context.mounted) {
+            if (!context.mounted) return;
             context.go(TimelineUserStoryRoutes.timelineHome);
-            }
           },
         );
         var backButton = IconButton(
@@ -265,9 +294,9 @@ List<GoRoute> getTimelineStoryRoutes({
                   leading: backButton,
                   backgroundColor: const Color(0xff212121),
                   title: Text(
-                    config.optionsBuilder(context).translations.postOverview!,
+                    config.optionsBuilder(context).translations.postOverview,
-                    style: const TextStyle(
+                    style: TextStyle(
-                      color: Color(0xff71C6D1),
+                      color: Theme.of(context).primaryColor,
                       fontSize: 24,
                       fontWeight: FontWeight.w800,
                     ),

packages/flutter_timeline/lib/src/flutter_timeline_navigator_userstory.dart

@@ -45,7 +45,8 @@ Widget _timelineScreenRoute({
       );
 
   var timelineScreen = TimelineScreen(
-    userId: config.userId,
+    userId: config.getUserId?.call(context) ?? config.userId,
+    allowAllDeletion: config.canDeleteAllPosts?.call(context) ?? false,
     onUserTap: (user) => config.onUserTap?.call(context, user),
     service: config.service,
     options: config.optionsBuilder(context),
@@ -60,12 +61,17 @@ Widget _timelineScreenRoute({
             ),
           ),
         ),
+    onRefresh: config.onRefresh,
     filterEnabled: config.filterEnabled,
     postWidgetBuilder: config.postWidgetBuilder,
   );
 
   var button = FloatingActionButton(
-    backgroundColor: const Color(0xff71C6D1),
+    backgroundColor: config
+            .optionsBuilder(context)
+            .theme
+            .postCreationFloatingActionButtonColor ??
+        Theme.of(context).primaryColor,
     onPressed: () async => Navigator.of(context).push(
       MaterialPageRoute(
         builder: (context) => _postCategorySelectionScreen(
@@ -87,9 +93,9 @@ Widget _timelineScreenRoute({
         appBar: AppBar(
           backgroundColor: const Color(0xff212121),
           title: Text(
-            config.optionsBuilder(context).translations.timeLineScreenTitle!,
+            config.optionsBuilder(context).translations.timeLineScreenTitle,
-            style: const TextStyle(
+            style: TextStyle(
-              color: Color(0xff71C6D1),
+              color: Theme.of(context).primaryColor,
               fontSize: 24,
               fontWeight: FontWeight.w800,
             ),
@@ -121,16 +127,29 @@ Widget _postDetailScreenRoute({
       );
 
   var timelinePostScreen = TimelinePostScreen(
-    userId: config.userId,
+    userId: config.getUserId?.call(context) ?? config.userId,
+    allowAllDeletion: config.canDeleteAllPosts?.call(context) ?? false,
     options: config.optionsBuilder(context),
     service: config.service,
     post: post,
     onPostDelete: () async =>
         config.onPostDelete?.call(context, post) ??
-        await config.service.postService.deletePost(post),
+        () async {
+          await config.service.postService.deletePost(post);
+          if (context.mounted) {
+            Navigator.of(context).pop();
+          }
+        }.call(),
     onUserTap: (user) => config.onUserTap?.call(context, user),
   );
 
+  var category = config
+      .optionsBuilder(context)
+      .categoriesOptions
+      .categoriesBuilder
+      ?.call(context)
+      .firstWhere((element) => element.key == post.category);
+
   var backButton = IconButton(
     color: Colors.white,
     icon: const Icon(Icons.arrow_back_ios),
@@ -138,15 +157,15 @@ Widget _postDetailScreenRoute({
   );
 
   return config.postViewOpenPageBuilder
-          ?.call(context, timelinePostScreen, backButton) ??
+          ?.call(context, timelinePostScreen, backButton, post, category) ??
       Scaffold(
         appBar: AppBar(
           leading: backButton,
           backgroundColor: const Color(0xff212121),
           title: Text(
-            post.category ?? 'Category',
+            category?.title ?? post.category ?? 'Category',
-            style: const TextStyle(
+            style: TextStyle(
-              color: Color(0xff71C6D1),
+              color: Theme.of(context).primaryColor,
               fontSize: 24,
               fontWeight: FontWeight.w800,
             ),
@@ -176,12 +195,12 @@ Widget _postCreationScreenRoute({
       );
 
   var timelinePostCreationScreen = TimelinePostCreationScreen(
-    userId: config.userId,
+    userId: config.getUserId?.call(context) ?? config.userId,
     options: config.optionsBuilder(context),
     service: config.service,
     onPostCreated: (post) async {
       var newPost = await config.service.postService.createPost(post);
-      if (context.mounted) {
+      if (!context.mounted) return;
       if (config.afterPostCreationGoHome) {
         await Navigator.pushReplacement(
           context,
@@ -204,7 +223,6 @@ Widget _postCreationScreenRoute({
           ),
         );
       }
-      }
     },
     onPostOverview: (post) async => Navigator.of(context).push(
       MaterialPageRoute(
@@ -216,7 +234,7 @@ Widget _postCreationScreenRoute({
       ),
     ),
     enablePostOverviewScreen: config.enablePostOverviewScreen,
-    postCategory: category.title,
+    postCategory: category.key,
   );
 
   var backButton = IconButton(
@@ -234,9 +252,9 @@ Widget _postCreationScreenRoute({
           backgroundColor: const Color(0xff212121),
           leading: backButton,
           title: Text(
-            config.optionsBuilder(context).translations.postCreation!,
+            config.optionsBuilder(context).translations.postCreation,
-            style: const TextStyle(
+            style: TextStyle(
-              color: Color(0xff71C6D1),
+              color: Theme.of(context).primaryColor,
               fontSize: 24,
               fontWeight: FontWeight.w800,
             ),
@@ -282,7 +300,6 @@ Widget _postOverviewScreenRoute({
         );
       }
     },
-    isOverviewScreen: true,
   );
 
   var backButton = IconButton(
@@ -302,9 +319,9 @@ Widget _postOverviewScreenRoute({
           leading: backButton,
           backgroundColor: const Color(0xff212121),
           title: Text(
-            config.optionsBuilder(context).translations.postOverview!,
+            config.optionsBuilder(context).translations.postOverview,
-            style: const TextStyle(
+            style: TextStyle(
-              color: Color(0xff71C6D1),
+              color: Theme.of(context).primaryColor,
               fontSize: 24,
               fontWeight: FontWeight.w800,
             ),
@@ -332,7 +349,9 @@ Widget _postCategorySelectionScreen({
     categories: config
             .optionsBuilder(context)
             .categoriesOptions
-        .categoriesBuilder!(context),
+            .categoriesBuilder
+            ?.call(context) ??
+        [],
     onCategorySelected: (category) async {
       await Navigator.of(context).push(
         MaterialPageRoute(
@@ -361,9 +380,9 @@ Widget _postCategorySelectionScreen({
           leading: backButton,
           backgroundColor: const Color(0xff212121),
           title: Text(
-            config.optionsBuilder(context).translations.postCreation!,
+            config.optionsBuilder(context).translations.postCreation,
-            style: const TextStyle(
+            style: TextStyle(
-              color: Color(0xff71C6D1),
+              color: Theme.of(context).primaryColor,
               fontSize: 24,
               fontWeight: FontWeight.w800,
             ),

packages/flutter_timeline/lib/src/models/timeline_configuration.dart

@@ -48,6 +48,9 @@ class TimelineUserStoryConfiguration {
   const TimelineUserStoryConfiguration({
     required this.service,
     required this.optionsBuilder,
+    this.getUserId,
+    this.serviceBuilder,
+    this.canDeleteAllPosts,
     this.userId = 'test_user',
     this.homeOpenPageBuilder,
     this.postCreationOpenPageBuilder,
@@ -55,6 +58,7 @@ class TimelineUserStoryConfiguration {
     this.postOverviewOpenPageBuilder,
     this.onPostTap,
     this.onUserTap,
+    this.onRefresh,
     this.onPostDelete,
     this.filterEnabled = false,
     this.postWidgetBuilder,
@@ -66,9 +70,19 @@ class TimelineUserStoryConfiguration {
   /// The ID of the user associated with this user story configuration.
   final String userId;
 
+  /// A function to get the userId only when needed and with a context
+  final String Function(BuildContext context)? getUserId;
+
+  /// A function to determine if a user can delete posts that is called
+  /// when needed
+  final bool Function(BuildContext context)? canDeleteAllPosts;
+
   /// The TimelineService responsible for fetching user story data.
   final TimelineService service;
 
+  /// A function to get the timeline service only when needed and with a context
+  final TimelineService Function(BuildContext context)? serviceBuilder;
+
   /// A function that builds TimelineOptions based on the given BuildContext.
   final TimelineOptions Function(BuildContext context) optionsBuilder;
 
@@ -100,6 +114,8 @@ class TimelineUserStoryConfiguration {
     BuildContext context,
     Widget child,
     IconButton? button,
+    TimelinePost post,
+    TimelineCategory? category,
   )? postViewOpenPageBuilder;
 
   /// Open page builder function for the post overview page. This function
@@ -117,6 +133,9 @@ class TimelineUserStoryConfiguration {
   /// A callback function invoked when the user's profile is tapped.
   final Function(BuildContext context, String userId)? onUserTap;
 
+  /// A callback function invoked when the timeline is refreshed by pulling down
+  final Function(BuildContext context, String? category)? onRefresh;
+
   /// A callback function invoked when a post deletion is requested.
   final Widget Function(BuildContext context, TimelinePost post)? onPostDelete;
 

packages/flutter_timeline/pubspec.yaml

@@ -3,7 +3,7 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 name: flutter_timeline
 description: Visual elements and interface combined into one package
-version: 3.0.1
+version: 4.0.0
 
 publish_to: none
 
@@ -15,17 +15,19 @@ dependencies:
     sdk: flutter
   go_router: any
 
+  collection: any
+
   flutter_timeline_view:
     git: 
        url: https://github.com/Iconica-Development/flutter_timeline
        path: packages/flutter_timeline_view
-       ref: 3.0.1
+       ref: 4.0.0
 
   flutter_timeline_interface:
     git:
       url: https://github.com/Iconica-Development/flutter_timeline
       path: packages/flutter_timeline_interface
-      ref: 3.0.1
+      ref: 4.0.0
 
 dev_dependencies:
   flutter_lints: ^2.0.0

packages/flutter_timeline_firebase/lib/src/config/firebase_timeline_options.dart

@@ -9,10 +9,8 @@ class FirebaseTimelineOptions {
   const FirebaseTimelineOptions({
     this.usersCollectionName = 'users',
     this.timelineCollectionName = 'timeline',
-    this.allTimelineCategories = const [],
   });
 
   final String usersCollectionName;
   final String timelineCollectionName;
-  final List<String> allTimelineCategories;
 }

packages/flutter_timeline_firebase/lib/src/service/firebase_post_service.dart

@@ -254,7 +254,7 @@ class FirebaseTimelinePostService
     // update the post with the new like
     var updatedPost = post.copyWith(
       likes: post.likes + 1,
-      likedBy: post.likedBy?..add(userId),
+      likedBy: [...post.likedBy ?? [], userId],
     );
     posts = posts
         .map(

packages/flutter_timeline_firebase/pubspec.yaml

@@ -4,7 +4,7 @@
 
 name: flutter_timeline_firebase
 description: Implementation of the Flutter Timeline interface for Firebase.
-version: 3.0.1
+version: 4.0.0
 
 publish_to: none
 
@@ -23,7 +23,7 @@ dependencies:
     git: 
        url: https://github.com/Iconica-Development/flutter_timeline
        path: packages/flutter_timeline_interface
-       ref: 3.0.1
+       ref: 4.0.0
 
 dev_dependencies:
   flutter_lints: ^2.0.0

packages/flutter_timeline_interface/pubspec.yaml

@@ -4,7 +4,7 @@
 
 name: flutter_timeline_interface
 description: Interface for the service of the Flutter Timeline component
-version: 3.0.1
+version: 4.0.0
 
 publish_to: none
 

packages/flutter_timeline_view/lib/flutter_timeline_view.dart

@@ -5,6 +5,7 @@
 library flutter_timeline_view;
 
 export 'src/config/timeline_options.dart';
+export 'src/config/timeline_paddings.dart';
 export 'src/config/timeline_styles.dart';
 export 'src/config/timeline_theme.dart';
 export 'src/config/timeline_translations.dart';

packages/flutter_timeline_view/lib/src/config/timeline_options.dart

@@ -5,6 +5,7 @@ import 'package:collection/collection.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_image_picker/flutter_image_picker.dart';
 import 'package:flutter_timeline_interface/flutter_timeline_interface.dart';
+import 'package:flutter_timeline_view/src/config/timeline_paddings.dart';
 import 'package:flutter_timeline_view/src/config/timeline_theme.dart';
 import 'package:flutter_timeline_view/src/config/timeline_translations.dart';
 import 'package:intl/intl.dart';
@@ -12,11 +13,11 @@ import 'package:intl/intl.dart';
 class TimelineOptions {
   const TimelineOptions({
     this.theme = const TimelineTheme(),
-    this.translations = const TimelineTranslations(),
+    this.translations = const TimelineTranslations.empty(),
+    this.paddings = const TimelinePaddingOptions(),
     this.imagePickerConfig = const ImagePickerConfig(),
     this.imagePickerTheme = const ImagePickerTheme(),
     this.timelinePostHeight,
-    this.allowAllDeletion = false,
     this.sortCommentsAscending = true,
     this.sortPostsAscending,
     this.doubleTapTolike = false,
@@ -37,12 +38,8 @@ class TimelineOptions {
     this.userAvatarBuilder,
     this.anonymousAvatarBuilder,
     this.nameBuilder,
-    this.padding =
-        const EdgeInsets.only(left: 12.0, top: 24.0, right: 12.0, bottom: 12.0),
     this.iconSize = 26,
     this.postWidgetHeight,
-    this.postPadding =
-        const EdgeInsets.symmetric(vertical: 12.0, horizontal: 12.0),
     this.filterOptions = const FilterOptions(),
     this.categoriesOptions = const CategoriesOptions(),
     this.requireImageForPost = false,
@@ -52,6 +49,8 @@ class TimelineOptions {
     this.maxContentLength,
     this.categorySelectorButtonBuilder,
     this.postOverviewButtonBuilder,
+    this.deletionDialogBuilder,
+    this.listHeaderBuilder,
     this.titleInputDecoration,
     this.contentInputDecoration,
   });
@@ -71,15 +70,15 @@ class TimelineOptions {
   /// Whether to sort posts ascending or descending
   final bool? sortPostsAscending;
 
-  /// Allow all posts to be deleted instead of
-  ///  only the posts of the current user
-  final bool allowAllDeletion;
-
   /// The height of a post in the timeline
   final double? timelinePostHeight;
 
+  /// Class that contains all the translations used in the timeline
   final TimelineTranslations translations;
 
+  /// Class that contains all the paddings used in the timeline
+  final TimelinePaddingOptions paddings;
+
   final ButtonBuilder? buttonBuilder;
 
   final TextInputBuilder? textInputBuilder;
@@ -115,18 +114,12 @@ class TimelineOptions {
   /// The builder for the divider
   final Widget Function()? dividerBuilder;
 
-  /// The padding between posts in the timeline
-  final EdgeInsets padding;
-
   /// Size of icons like the comment and like icons. Dafualts to 26
   final double iconSize;
 
   /// Sets a predefined height for the postWidget.
   final double? postWidgetHeight;
 
-  /// Padding of each post
-  final EdgeInsets postPadding;
-
   /// Options for filtering
   final FilterOptions filterOptions;
 
@@ -156,6 +149,11 @@ class TimelineOptions {
     String text,
   )? categorySelectorButtonBuilder;
 
+  /// This widgetbuilder is placed at the top of the list of posts and can be
+  ///  used to add custom elements
+  final Widget Function(BuildContext context, String? category)?
+      listHeaderBuilder;
+
   /// Builder for the post overview button
   /// on the timeline post overview screen
   final Widget Function(
@@ -164,6 +162,11 @@ class TimelineOptions {
     String text,
   )? postOverviewButtonBuilder;
 
+  /// Optional builder to override the default alertdialog for post deletion
+  /// It should pop the navigator with true to delete the post and
+  /// false to cancel deletion
+  final WidgetBuilder? deletionDialogBuilder;
+
   /// inputdecoration for the title textfield
   final InputDecoration? titleInputDecoration;
 
@@ -221,8 +224,7 @@ class CategoriesOptions {
 
   /// Abilty to override the standard category selector
   final Widget Function(
-    String? categoryKey,
+    TimelineCategory category,
-    String categoryName,
     Function() onTap,
     // ignore: avoid_positional_boolean_parameters
     bool selected,

packages/flutter_timeline_view/lib/src/config/timeline_paddings.dart

@@ -0,0 +1,25 @@
+import 'package:flutter/material.dart';
+
+/// This class contains the paddings used in the timeline options
+class TimelinePaddingOptions {
+  const TimelinePaddingOptions({
+    this.mainPadding =
+        const EdgeInsets.only(left: 12.0, top: 24.0, right: 12.0, bottom: 12.0),
+    this.postPadding =
+        const EdgeInsets.symmetric(vertical: 12.0, horizontal: 12.0),
+    this.postOverviewButtonBottomPadding = 30.0,
+    this.categoryButtonTextPadding,
+  });
+
+  /// The padding between posts in the timeline
+  final EdgeInsets mainPadding;
+
+  /// The padding of each post
+  final EdgeInsets postPadding;
+
+  /// The bottom padding of the button on the post overview screen
+  final double postOverviewButtonBottomPadding;
+
+  /// The padding between the icon and the text in the category button
+  final double? categoryButtonTextPadding;
+}

packages/flutter_timeline_view/lib/src/config/timeline_theme.dart

@@ -15,6 +15,9 @@ class TimelineTheme {
     this.sendIcon,
     this.moreIcon,
     this.deleteIcon,
+    this.categorySelectionButtonBorderColor,
+    this.categorySelectionButtonBackgroundColor,
+    this.postCreationFloatingActionButtonColor,
     this.textStyles = const TimelineTextStyles(),
   });
 
@@ -38,5 +41,16 @@ class TimelineTheme {
   /// The icon for delete action (delete post)
   final Widget? deleteIcon;
 
+  /// The text style overrides for all the texts in the timeline
   final TimelineTextStyles textStyles;
+
+  /// The color of the border around the category in the selection screen
+  final Color? categorySelectionButtonBorderColor;
+
+  /// The color of the background of the category selection button in the
+  /// selection screen
+  final Color? categorySelectionButtonBackgroundColor;
+
+  /// The color of the floating action button on the overview screen
+  final Color? postCreationFloatingActionButtonColor;
 }

packages/flutter_timeline_view/lib/src/config/timeline_translations.dart

@@ -5,8 +5,54 @@
 import 'package:flutter/material.dart';
 
 @immutable
+
+/// Class that holds all the translations for the timeline component view and
+///  the corresponding userstory
 class TimelineTranslations {
+  /// TimelineTranslations constructor where everything is required use this
+  /// if you want to be sure to have all translations specified
+  /// If you just want the default values use the empty constructor
+  /// and optionally override the values with the copyWith method
   const TimelineTranslations({
+    required this.anonymousUser,
+    required this.noPosts,
+    required this.noPostsWithFilter,
+    required this.title,
+    required this.titleHintText,
+    required this.content,
+    required this.contentHintText,
+    required this.contentDescription,
+    required this.uploadImage,
+    required this.uploadImageDescription,
+    required this.allowComments,
+    required this.allowCommentsDescription,
+    required this.commentsTitleOnPost,
+    required this.checkPost,
+    required this.postAt,
+    required this.deletePost,
+    required this.deleteReaction,
+    required this.deleteConfirmationMessage,
+    required this.deleteConfirmationTitle,
+    required this.deleteCancelButton,
+    required this.deleteButton,
+    required this.viewPost,
+    required this.likesTitle,
+    required this.commentsTitle,
+    required this.firstComment,
+    required this.writeComment,
+    required this.postLoadingError,
+    required this.timelineSelectionDescription,
+    required this.searchHint,
+    required this.postOverview,
+    required this.postIn,
+    required this.postCreation,
+    required this.yes,
+    required this.no,
+    required this.timeLineScreenTitle,
+  });
+
+  /// Default translations for the timeline component view
+  const TimelineTranslations.empty({
     this.anonymousUser = 'Anonymous user',
     this.noPosts = 'No posts yet',
     this.noPostsWithFilter = 'No posts with this filter',
@@ -23,6 +69,11 @@ class TimelineTranslations {
     this.commentsTitleOnPost = 'Comments',
     this.checkPost = 'Check post overview',
     this.deletePost = 'Delete post',
+    this.deleteConfirmationTitle = 'Delete Post',
+    this.deleteConfirmationMessage =
+        'Are you sure you want to delete this post?',
+    this.deleteButton = 'Delete',
+    this.deleteCancelButton = 'Cancel',
     this.deleteReaction = 'Delete Reaction',
     this.viewPost = 'View post',
     this.likesTitle = 'Likes',
@@ -41,45 +92,51 @@ class TimelineTranslations {
     this.timeLineScreenTitle = 'iconinstagram',
   });
 
-  final String? noPosts;
+  final String noPosts;
-  final String? noPostsWithFilter;
+  final String noPostsWithFilter;
-  final String? anonymousUser;
+  final String anonymousUser;
 
-  final String? title;
+  final String title;
-  final String? content;
+  final String content;
-  final String? contentDescription;
+  final String contentDescription;
-  final String? uploadImage;
+  final String uploadImage;
-  final String? uploadImageDescription;
+  final String uploadImageDescription;
-  final String? allowComments;
+  final String allowComments;
-  final String? allowCommentsDescription;
+  final String allowCommentsDescription;
-  final String? checkPost;
+  final String checkPost;
-  final String? postAt;
+  final String postAt;
 
-  final String? titleHintText;
+  final String titleHintText;
-  final String? contentHintText;
+  final String contentHintText;
 
-  final String? deletePost;
+  final String deletePost;
-  final String? deleteReaction;
+  final String deleteConfirmationTitle;
-  final String? viewPost;
+  final String deleteConfirmationMessage;
-  final String? likesTitle;
+  final String deleteButton;
-  final String? commentsTitle;
+  final String deleteCancelButton;
-  final String? commentsTitleOnPost;
-  final String? writeComment;
-  final String? firstComment;
-  final String? postLoadingError;
 
-  final String? timelineSelectionDescription;
+  final String deleteReaction;
+  final String viewPost;
+  final String likesTitle;
+  final String commentsTitle;
+  final String commentsTitleOnPost;
+  final String writeComment;
+  final String firstComment;
+  final String postLoadingError;
 
-  final String? searchHint;
+  final String timelineSelectionDescription;
 
-  final String? postOverview;
+  final String searchHint;
-  final String? postIn;
-  final String? postCreation;
 
-  final String? yes;
+  final String postOverview;
-  final String? no;
+  final String postIn;
-  final String? timeLineScreenTitle;
+  final String postCreation;
 
+  final String yes;
+  final String no;
+  final String timeLineScreenTitle;
+
+  /// Method to override the default values of the translations
   TimelineTranslations copyWith({
     String? noPosts,
     String? noPostsWithFilter,
@@ -95,6 +152,10 @@ class TimelineTranslations {
     String? checkPost,
     String? postAt,
     String? deletePost,
+    String? deleteConfirmationTitle,
+    String? deleteConfirmationMessage,
+    String? deleteButton,
+    String? deleteCancelButton,
     String? deleteReaction,
     String? viewPost,
     String? likesTitle,
@@ -130,6 +191,12 @@ class TimelineTranslations {
         checkPost: checkPost ?? this.checkPost,
         postAt: postAt ?? this.postAt,
         deletePost: deletePost ?? this.deletePost,
+        deleteConfirmationTitle:
+            deleteConfirmationTitle ?? this.deleteConfirmationTitle,
+        deleteConfirmationMessage:
+            deleteConfirmationMessage ?? this.deleteConfirmationMessage,
+        deleteButton: deleteButton ?? this.deleteButton,
+        deleteCancelButton: deleteCancelButton ?? this.deleteCancelButton,
         deleteReaction: deleteReaction ?? this.deleteReaction,
         viewPost: viewPost ?? this.viewPost,
         likesTitle: likesTitle ?? this.likesTitle,

packages/flutter_timeline_view/lib/src/screens/timeline_post_creation_screen.dart

@@ -104,6 +104,7 @@ class _TimelinePostCreationScreenState
         category: widget.postCategory,
         content: contentController.text,
         likes: 0,
+        likedBy: const [],
         reaction: 0,
         createdAt: DateTime.now(),
         reactionEnabled: allowComments,
@@ -121,14 +122,14 @@ class _TimelinePostCreationScreenState
     return GestureDetector(
       onTap: () => FocusScope.of(context).unfocus(),
       child: Padding(
-        padding: widget.options.padding,
+        padding: widget.options.paddings.mainPadding,
         child: SingleChildScrollView(
           child: Column(
             mainAxisSize: MainAxisSize.max,
             crossAxisAlignment: CrossAxisAlignment.start,
             children: [
               Text(
-                widget.options.translations.title!,
+                widget.options.translations.title,
                 style: const TextStyle(
                   fontWeight: FontWeight.w800,
                   fontSize: 20,
@@ -140,6 +141,7 @@ class _TimelinePostCreationScreenState
                     '',
                   ) ??
                   TextField(
+                    maxLength: widget.options.maxTitleLength,
                     controller: titleController,
                     decoration: widget.options.contentInputDecoration ??
                         InputDecoration(
@@ -148,7 +150,7 @@ class _TimelinePostCreationScreenState
                   ),
               const SizedBox(height: 16),
               Text(
-                widget.options.translations.content!,
+                widget.options.translations.content,
                 style: const TextStyle(
                   fontWeight: FontWeight.w800,
                   fontSize: 20,
@@ -156,7 +158,7 @@ class _TimelinePostCreationScreenState
               ),
               const SizedBox(height: 4),
               Text(
-                widget.options.translations.contentDescription!,
+                widget.options.translations.contentDescription,
                 style: theme.textTheme.bodyMedium,
               ),
               // input field for the content
@@ -176,14 +178,14 @@ class _TimelinePostCreationScreenState
               ),
               // input field for the content
               Text(
-                widget.options.translations.uploadImage!,
+                widget.options.translations.uploadImage,
                 style: const TextStyle(
                   fontWeight: FontWeight.w800,
                   fontSize: 20,
                 ),
               ),
               Text(
-                widget.options.translations.uploadImageDescription!,
+                widget.options.translations.uploadImageDescription,
                 style: theme.textTheme.bodyMedium,
               ),
               // image picker field
@@ -270,21 +272,21 @@ class _TimelinePostCreationScreenState
               const SizedBox(height: 16),
 
               Text(
-                widget.options.translations.commentsTitle!,
+                widget.options.translations.commentsTitle,
                 style: const TextStyle(
                   fontWeight: FontWeight.w800,
                   fontSize: 20,
                 ),
               ),
               Text(
-                widget.options.translations.allowCommentsDescription!,
+                widget.options.translations.allowCommentsDescription,
                 style: theme.textTheme.bodyMedium,
               ),
               Row(
                 mainAxisAlignment: MainAxisAlignment.start,
                 children: <Widget>[
                   Checkbox(
-                    activeColor: const Color(0xff71C6D1),
+                    activeColor: theme.colorScheme.primary,
                     value: allowComments,
                     onChanged: (value) {
                       setState(() {
@@ -292,9 +294,9 @@ class _TimelinePostCreationScreenState
                       });
                     },
                   ),
-                  Text(widget.options.translations.yes!),
+                  Text(widget.options.translations.yes),
                   Checkbox(
-                    activeColor: const Color(0xff71C6D1),
+                    activeColor: theme.colorScheme.primary,
                     value: !allowComments,
                     onChanged: (value) {
                       setState(() {
@@ -302,7 +304,7 @@ class _TimelinePostCreationScreenState
                       });
                     },
                   ),
-                  Text(widget.options.translations.no!),
+                  Text(widget.options.translations.no),
                 ],
               ),
               const SizedBox(height: 120),
@@ -313,13 +315,14 @@ class _TimelinePostCreationScreenState
                     ? widget.options.buttonBuilder!(
                         context,
                         onPostCreated,
-                        widget.options.translations.checkPost!,
+                        widget.options.translations.checkPost,
                         enabled: editingDone,
                       )
                     : ElevatedButton(
-                        style: const ButtonStyle(
+                        style: ButtonStyle(
-                          backgroundColor:
+                          backgroundColor: MaterialStatePropertyAll(
-                              MaterialStatePropertyAll(Color(0xff71C6D1)),
+                            theme.colorScheme.primary,
+                          ),
                         ),
                         onPressed: editingDone
                             ? () async {
@@ -332,8 +335,8 @@ class _TimelinePostCreationScreenState
                           padding: const EdgeInsets.all(12.0),
                           child: Text(
                             widget.enablePostOverviewScreen
-                                ? widget.options.translations.checkPost!
+                                ? widget.options.translations.checkPost
-                                : widget.options.translations.postCreation!,
+                                : widget.options.translations.postCreation,
                             style: const TextStyle(
                               color: Colors.white,
                               fontSize: 20,

packages/flutter_timeline_view/lib/src/screens/timeline_post_overview_screen.dart

@@ -1,5 +1,6 @@
 // ignore_for_file: prefer_expression_function_bodies
 
+import 'package:collection/collection.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_timeline_interface/flutter_timeline_interface.dart';
 import 'package:flutter_timeline_view/flutter_timeline_view.dart';
@@ -10,27 +11,33 @@ class TimelinePostOverviewScreen extends StatelessWidget {
     required this.options,
     required this.service,
     required this.onPostSubmit,
-    this.isOverviewScreen,
     super.key,
   });
   final TimelinePost timelinePost;
   final TimelineOptions options;
   final TimelineService service;
   final void Function(TimelinePost) onPostSubmit;
-  final bool? isOverviewScreen;
 
   @override
   Widget build(BuildContext context) {
+    // the timelinePost.category is a key so we need to get the category object
+    var timelineCategoryName = options.categoriesOptions.categoriesBuilder
+            ?.call(context)
+            .firstWhereOrNull((element) => element.key == timelinePost.category)
+            ?.title ??
+        timelinePost.category;
+    var buttonText = '${options.translations.postIn} $timelineCategoryName';
     return Column(
+      mainAxisSize: MainAxisSize.max,
       children: [
-        Flexible(
+        Expanded(
           child: TimelinePostScreen(
             userId: timelinePost.creatorId,
             options: options,
             post: timelinePost,
             onPostDelete: () async {},
             service: service,
-            isOverviewScreen: isOverviewScreen,
+            isOverviewScreen: true,
           ),
         ),
         options.postOverviewButtonBuilder?.call(
@@ -38,13 +45,20 @@ class TimelinePostOverviewScreen extends StatelessWidget {
               () {
                 onPostSubmit(timelinePost);
               },
-              '${options.translations.postIn} ${timelinePost.category}',
+              buttonText,
             ) ??
-            Padding(
+            options.buttonBuilder?.call(
-              padding: const EdgeInsets.only(bottom: 30.0),
+              context,
-              child: ElevatedButton(
+              () {
-                style: const ButtonStyle(
+                onPostSubmit(timelinePost);
-                  backgroundColor: MaterialStatePropertyAll(Color(0xff71C6D1)),
+              },
+              buttonText,
+              enabled: true,
+            ) ??
+            ElevatedButton(
+              style: ButtonStyle(
+                backgroundColor:
+                    MaterialStatePropertyAll(Theme.of(context).primaryColor),
               ),
               onPressed: () {
                 onPostSubmit(timelinePost);
@@ -52,7 +66,7 @@ class TimelinePostOverviewScreen extends StatelessWidget {
               child: Padding(
                 padding: const EdgeInsets.all(12.0),
                 child: Text(
-                    '${options.translations.postIn} ${timelinePost.category}',
+                  buttonText,
                   style: const TextStyle(
                     color: Colors.white,
                     fontSize: 20,
@@ -61,7 +75,7 @@ class TimelinePostOverviewScreen extends StatelessWidget {
                 ),
               ),
             ),
-            ),
+        SizedBox(height: options.paddings.postOverviewButtonBottomPadding),
       ],
     );
   }

packages/flutter_timeline_view/lib/src/screens/timeline_post_screen.dart

@@ -13,15 +13,17 @@ import 'package:flutter_timeline_interface/flutter_timeline_interface.dart';
 import 'package:flutter_timeline_view/src/config/timeline_options.dart';
 import 'package:flutter_timeline_view/src/widgets/reaction_bottom.dart';
 import 'package:flutter_timeline_view/src/widgets/tappable_image.dart';
+import 'package:flutter_timeline_view/src/widgets/timeline_post_widget.dart';
 import 'package:intl/intl.dart';
 
-class TimelinePostScreen extends StatelessWidget {
+class TimelinePostScreen extends StatefulWidget {
   const TimelinePostScreen({
     required this.userId,
     required this.service,
     required this.options,
     required this.post,
     required this.onPostDelete,
+    this.allowAllDeletion = false,
     this.isOverviewScreen = false,
     this.onUserTap,
     super.key,
@@ -30,6 +32,10 @@ class TimelinePostScreen extends StatelessWidget {
   /// The user id of the current user
   final String userId;
 
+  /// Allow all posts to be deleted instead of
+  ///  only the posts of the current user
+  final bool allowAllDeletion;
+
   /// The timeline service to fetch the post details
   final TimelineService service;
 
@@ -47,49 +53,10 @@ class TimelinePostScreen extends StatelessWidget {
   final bool? isOverviewScreen;
 
   @override
-  Widget build(BuildContext context) => Scaffold(
+  State<TimelinePostScreen> createState() => _TimelinePostScreenState();
-        body: _TimelinePostScreen(
-          userId: userId,
-          service: service,
-          options: options,
-          post: post,
-          onPostDelete: onPostDelete,
-          onUserTap: onUserTap,
-          isOverviewScreen: isOverviewScreen,
-        ),
-      );
 }
 
-class _TimelinePostScreen extends StatefulWidget {
+class _TimelinePostScreenState extends State<TimelinePostScreen> {
-  const _TimelinePostScreen({
-    required this.userId,
-    required this.service,
-    required this.options,
-    required this.post,
-    required this.onPostDelete,
-    this.onUserTap,
-    this.isOverviewScreen,
-  });
-
-  final String userId;
-
-  final TimelineService service;
-
-  final TimelineOptions options;
-
-  final TimelinePost post;
-
-  final Function(String userId)? onUserTap;
-
-  final VoidCallback onPostDelete;
-
-  final bool? isOverviewScreen;
-
-  @override
-  State<_TimelinePostScreen> createState() => _TimelinePostScreenState();
-}
-
-class _TimelinePostScreenState extends State<_TimelinePostScreen> {
   TimelinePost? post;
   bool isLoading = true;
 
@@ -146,13 +113,13 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
 
     if (isLoading) {
       const Center(
-        child: CircularProgressIndicator(),
+        child: CircularProgressIndicator.adaptive(),
       );
     }
     if (this.post == null) {
       return Center(
         child: Text(
-          widget.options.translations.postLoadingError!,
+          widget.options.translations.postLoadingError,
           style: widget.options.theme.textStyles.errorTextStyle,
         ),
       );
@@ -166,7 +133,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
 
     return Stack(
       children: [
-        RefreshIndicator(
+        RefreshIndicator.adaptive(
           onRefresh: () async {
             updatePost(
               await widget.service.postService.fetchPostDetails(
@@ -178,7 +145,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
           },
           child: SingleChildScrollView(
             child: Padding(
-              padding: widget.options.padding,
+              padding: widget.options.paddings.mainPadding,
               child: Column(
                 crossAxisAlignment: CrossAxisAlignment.start,
                 children: [
@@ -198,7 +165,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                                       28,
                                     ) ??
                                     CircleAvatar(
-                                      radius: 20,
+                                      radius: 14,
                                       backgroundImage:
                                           CachedNetworkImageProvider(
                                         post.creator!.imageUrl!,
@@ -210,7 +177,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                                       28,
                                     ) ??
                                     const CircleAvatar(
-                                      radius: 20,
+                                      radius: 14,
                                       child: Icon(
                                         Icons.person,
                                       ),
@@ -221,7 +188,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                                 widget.options.nameBuilder
                                         ?.call(post.creator) ??
                                     post.creator?.fullName ??
-                                    widget.options.translations.anonymousUser!,
+                                    widget.options.translations.anonymousUser,
                                 style: widget.options.theme.textStyles
                                         .postCreatorTitleStyle ??
                                     theme.textTheme.titleMedium,
@@ -230,10 +197,19 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                           ),
                         ),
                       const Spacer(),
-                      if (widget.options.allowAllDeletion ||
+                      if (!(widget.isOverviewScreen ?? false) &&
-                          post.creator?.userId == widget.userId)
+                          (widget.allowAllDeletion ||
+                              post.creator?.userId == widget.userId))
                         PopupMenuButton(
-                          onSelected: (value) => widget.onPostDelete(),
+                          onSelected: (value) async {
+                            if (value == 'delete') {
+                              await showPostDeletionConfirmationDialog(
+                                widget.options,
+                                context,
+                                widget.onPostDelete,
+                              );
+                            }
+                          },
                           itemBuilder: (BuildContext context) =>
                               <PopupMenuEntry<String>>[
                             PopupMenuItem<String>(
@@ -241,7 +217,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                               child: Row(
                                 children: [
                                   Text(
-                                    widget.options.translations.deletePost!,
+                                    widget.options.translations.deletePost,
                                     style: widget.options.theme.textStyles
                                             .deletePostStyle ??
                                         theme.textTheme.bodyMedium,
@@ -344,6 +320,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                       ] else ...[
                         InkWell(
                           onTap: () async {
+                            if (widget.isOverviewScreen ?? false) return;
                             updatePost(
                               await widget.service.postService.likePost(
                                 widget.userId,
@@ -441,7 +418,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                   const SizedBox(height: 20),
                   if (post.reactionEnabled) ...[
                     Text(
-                      widget.options.translations.commentsTitleOnPost!,
+                      widget.options.translations.commentsTitleOnPost,
                       style: theme.textTheme.titleMedium,
                     ),
                     for (var reaction
@@ -450,7 +427,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                       GestureDetector(
                         onLongPressStart: (details) async {
                           if (reaction.creatorId == widget.userId ||
-                              widget.options.allowAllDeletion) {
+                              widget.allowAllDeletion) {
                             var overlay = Overlay.of(context)
                                 .context
                                 .findRenderObject()! as RenderBox;
@@ -469,7 +446,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                                 PopupMenuItem<String>(
                                   value: 'delete',
                                   child: Text(
-                                    widget.options.translations.deleteReaction!,
+                                    widget.options.translations.deleteReaction,
                                   ),
                                 ),
                               ],
@@ -495,7 +472,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                                     28,
                                   ) ??
                                   CircleAvatar(
-                                    radius: 20,
+                                    radius: 14,
                                     backgroundImage: CachedNetworkImageProvider(
                                       reaction.creator!.imageUrl!,
                                     ),
@@ -506,7 +483,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                                     28,
                                   ) ??
                                   const CircleAvatar(
-                                    radius: 20,
+                                    radius: 14,
                                     child: Icon(
                                       Icons.person,
                                     ),
@@ -520,10 +497,10 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                                   children: [
                                     Text(
                                       widget.options.nameBuilder
-                                              ?.call(post.creator) ??
+                                              ?.call(reaction.creator) ??
                                           reaction.creator?.fullName ??
                                           widget.options.translations
-                                              .anonymousUser!,
+                                              .anonymousUser,
                                       style: theme.textTheme.titleSmall,
                                     ),
                                     Padding(
@@ -541,7 +518,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                                 child: Text.rich(
                                   TextSpan(
                                     text: widget.options.nameBuilder
-                                            ?.call(post.creator) ??
+                                            ?.call(reaction.creator) ??
                                         reaction.creator?.fullName ??
                                         widget
                                             .options.translations.anonymousUser,
@@ -565,7 +542,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
                     if (post.reactions?.isEmpty ?? true) ...[
                       const SizedBox(height: 16),
                       Text(
-                        widget.options.translations.firstComment!,
+                        widget.options.translations.firstComment,
                       ),
                     ],
                     const SizedBox(height: 120),
@@ -575,7 +552,7 @@ class _TimelinePostScreenState extends State<_TimelinePostScreen> {
             ),
           ),
         ),
-        if (post.reactionEnabled && !widget.isOverviewScreen!)
+        if (post.reactionEnabled && !(widget.isOverviewScreen ?? false))
           Align(
             alignment: Alignment.bottomCenter,
             child: ReactionBottom(

packages/flutter_timeline_view/lib/src/screens/timeline_screen.dart

@@ -16,16 +16,22 @@ class TimelineScreen extends StatefulWidget {
     this.onPostTap,
     this.scrollController,
     this.onUserTap,
+    this.onRefresh,
     this.posts,
     this.timelineCategory,
     this.postWidgetBuilder,
     this.filterEnabled = false,
+    this.allowAllDeletion = false,
     super.key,
   });
 
   /// The user id of the current user
   final String userId;
 
+  /// Allow all posts to be deleted instead of
+  ///  only the posts of the current user
+  final bool allowAllDeletion;
+
   /// The service to use for fetching and manipulating posts
   final TimelineService? service;
 
@@ -45,6 +51,9 @@ class TimelineScreen extends StatefulWidget {
   /// Called when a post is tapped
   final Function(TimelinePost)? onPostTap;
 
+  /// Called when the timeline is refreshed by pulling down
+  final Function(BuildContext context, String? category)? onRefresh;
+
   /// If this is not null, the user can tap on the user avatar or name
   final Function(String userId)? onUserTap;
 
@@ -104,7 +113,7 @@ class _TimelineScreenState extends State<TimelineScreen> {
   @override
   Widget build(BuildContext context) {
     if (isLoading && widget.posts == null) {
-      return const Center(child: CircularProgressIndicator());
+      return const Center(child: CircularProgressIndicator.adaptive());
     }
 
     // Build the list of posts
@@ -143,12 +152,13 @@ class _TimelineScreenState extends State<TimelineScreen> {
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
             SizedBox(
-              height: widget.options.padding.top,
+              height: widget.options.paddings.mainPadding.top,
             ),
             if (widget.filterEnabled) ...[
               Padding(
-                padding: EdgeInsets.symmetric(
+                padding: EdgeInsets.only(
-                  horizontal: widget.options.padding.horizontal,
+                  left: widget.options.paddings.mainPadding.left,
+                  right: widget.options.paddings.mainPadding.right,
                 ),
                 child: Row(
                   crossAxisAlignment: CrossAxisAlignment.end,
@@ -218,19 +228,29 @@ class _TimelineScreenState extends State<TimelineScreen> {
               height: 12,
             ),
             Expanded(
+              child: RefreshIndicator.adaptive(
+                onRefresh: () async {
+                  await widget.onRefresh?.call(context, category);
+                  await loadPosts();
+                },
                 child: SingleChildScrollView(
                   controller: controller,
                   child: Column(
                     mainAxisSize: MainAxisSize.min,
                     children: [
+                      /// Add a optional custom header to the list of posts
+                      widget.options.listHeaderBuilder
+                              ?.call(context, category) ??
+                          const SizedBox.shrink(),
                       ...posts.map(
                         (post) => Padding(
-                        padding: widget.options.postPadding,
+                          padding: widget.options.paddings.postPadding,
                           child: widget.postWidgetBuilder?.call(post) ??
                               TimelinePostWidget(
                                 service: service,
                                 userId: widget.userId,
                                 options: widget.options,
+                                allowAllDeletion: widget.allowAllDeletion,
                                 post: post,
                                 onTap: () async {
                                   if (widget.onPostTap != null) {
@@ -249,7 +269,8 @@ class _TimelineScreenState extends State<TimelineScreen> {
                                           options: widget.options,
                                           post: post,
                                           onPostDelete: () {
-                                          service.postService.deletePost(post);
+                                            service.postService
+                                                .deletePost(post);
                                             Navigator.of(context).pop();
                                           },
                                         ),
@@ -273,10 +294,11 @@ class _TimelineScreenState extends State<TimelineScreen> {
                             padding: const EdgeInsets.all(8.0),
                             child: Text(
                               category == null
-                                ? widget.options.translations.noPosts!
+                                  ? widget.options.translations.noPosts
                                   : widget
-                                    .options.translations.noPostsWithFilter!,
+                                      .options.translations.noPostsWithFilter,
-                            style: widget.options.theme.textStyles.noPostsStyle,
+                              style:
+                                  widget.options.theme.textStyles.noPostsStyle,
                             ),
                           ),
                         ),
@@ -284,8 +306,9 @@ class _TimelineScreenState extends State<TimelineScreen> {
                   ),
                 ),
               ),
+            ),
             SizedBox(
-              height: widget.options.padding.bottom,
+              height: widget.options.paddings.mainPadding.bottom,
             ),
           ],
         );

packages/flutter_timeline_view/lib/src/screens/timeline_selection_screen.dart

@@ -29,7 +29,7 @@ class TimelineSelectionScreen extends StatelessWidget {
           Padding(
             padding: EdgeInsets.only(top: size.height * 0.05, bottom: 8),
             child: Text(
-              options.translations.timelineSelectionDescription!,
+              options.translations.timelineSelectionDescription,
               style: const TextStyle(
                 fontWeight: FontWeight.w800,
                 fontSize: 20,
@@ -38,7 +38,7 @@ class TimelineSelectionScreen extends StatelessWidget {
           ),
           const SizedBox(height: 4),
           for (var category in categories.where(
-            (element) => element.canCreate,
+            (element) => element.canCreate && element.key != null,
           )) ...[
             options.categorySelectorButtonBuilder?.call(
                   context,
@@ -55,9 +55,13 @@ class TimelineSelectionScreen extends StatelessWidget {
                     decoration: BoxDecoration(
                       borderRadius: BorderRadius.circular(10),
                       border: Border.all(
-                        color: const Color(0xff71C6D1),
+                        color:
+                            options.theme.categorySelectionButtonBorderColor ??
+                                Theme.of(context).primaryColor,
                         width: 2,
                       ),
+                      color:
+                          options.theme.categorySelectionButtonBackgroundColor,
                     ),
                     margin: const EdgeInsets.symmetric(vertical: 4),
                     child: Column(

packages/flutter_timeline_view/lib/src/widgets/category_selector.dart

@@ -37,12 +37,11 @@ class _CategorySelectorState extends State<CategorySelector> {
           SizedBox(
             width: widget.options.categoriesOptions
                     .categorySelectorHorizontalPadding ??
-                max(widget.options.padding.horizontal - 20, 0),
+                max(widget.options.paddings.mainPadding.left - 20, 0),
           ),
           for (var category in categories) ...[
             widget.options.categoriesOptions.categoryButtonBuilder?.call(
-                  category.key,
+                  category,
-                  category.title,
                   () => widget.onTapCategory(category.key),
                   widget.filter == category.key,
                   widget.isOnTop,
@@ -61,7 +60,7 @@ class _CategorySelectorState extends State<CategorySelector> {
           SizedBox(
             width: widget.options.categoriesOptions
                     .categorySelectorHorizontalPadding ??
-                max(widget.options.padding.horizontal - 4, 0),
+                max(widget.options.paddings.mainPadding.right - 4, 0),
           ),
         ],
       ),

packages/flutter_timeline_view/lib/src/widgets/category_selector_button.dart

@@ -14,7 +14,7 @@ class CategorySelectorButton extends StatelessWidget {
 
   final TimelineCategory category;
   final bool selected;
-  final void Function() onTap;
+  final VoidCallback onTap;
   final TimelineOptions options;
   final bool isOnTop;
 
@@ -36,15 +36,19 @@ class CategorySelectorButton extends StatelessWidget {
           ),
           fixedSize: MaterialStatePropertyAll(Size(140, isOnTop ? 140 : 20)),
           backgroundColor: MaterialStatePropertyAll(
-            selected ? const Color(0xff71C6D1) : Colors.transparent,
+            selected
+                ? theme.colorScheme.primary
+                : options.theme.categorySelectionButtonBackgroundColor ??
+                    Colors.transparent,
           ),
-          shape: const MaterialStatePropertyAll(
+          shape: MaterialStatePropertyAll(
             RoundedRectangleBorder(
-              borderRadius: BorderRadius.all(
+              borderRadius: const BorderRadius.all(
                 Radius.circular(8),
               ),
               side: BorderSide(
-                color: Color(0xff71C6D1),
+                color: options.theme.categorySelectionButtonBorderColor ??
+                    theme.colorScheme.primary,
                 width: 2,
               ),
             ),
@@ -53,7 +57,9 @@ class CategorySelectorButton extends StatelessWidget {
         child: isOnTop
             ? SizedBox(
                 width: MediaQuery.of(context).size.width,
-                child: Column(
+                child: Stack(
+                  children: [
+                    Column(
                       mainAxisAlignment: MainAxisAlignment.end,
                       crossAxisAlignment: CrossAxisAlignment.start,
                       children: [
@@ -70,13 +76,25 @@ class CategorySelectorButton extends StatelessWidget {
                         ),
                       ],
                     ),
+                    Center(child: category.icon),
+                  ],
+                ),
               )
             : Row(
                 children: [
                   Flexible(
+                    child: Row(
+                      children: [
+                        category.icon,
+                        SizedBox(
+                          width:
+                              options.paddings.categoryButtonTextPadding ?? 8,
+                        ),
+                        Expanded(
                           child: Text(
                             category.title,
-                      style: (options.theme.textStyles.categoryTitleStyle ??
+                            style:
+                                (options.theme.textStyles.categoryTitleStyle ??
                                         theme.textTheme.labelLarge)
                                     ?.copyWith(
                               color: selected
@@ -90,6 +108,9 @@ class CategorySelectorButton extends StatelessWidget {
                       ],
                     ),
                   ),
+                ],
+              ),
+      ),
     );
   }
 }

packages/flutter_timeline_view/lib/src/widgets/reaction_bottom.dart

@@ -49,6 +49,18 @@ class _ReactionBottomState extends State<ReactionBottom> {
                 child: Row(
                   mainAxisSize: MainAxisSize.min,
                   children: [
+                    if (widget.onPressSelectImage != null) ...[
+                      IconButton(
+                        onPressed: () async {
+                          _textEditingController.clear();
+                          widget.onPressSelectImage?.call();
+                        },
+                        icon: Icon(
+                          Icons.image,
+                          color: widget.iconColor,
+                        ),
+                      ),
+                    ],
                     IconButton(
                       onPressed: () async {
                         var value = _textEditingController.text;
@@ -65,7 +77,7 @@ class _ReactionBottomState extends State<ReactionBottom> {
                   ],
                 ),
               ),
-              widget.translations.writeComment!,
+              widget.translations.writeComment,
             ),
           ),
         ),

packages/flutter_timeline_view/lib/src/widgets/timeline_post_widget.dart

@@ -18,12 +18,18 @@ class TimelinePostWidget extends StatefulWidget {
     required this.onTapUnlike,
     required this.onPostDelete,
     required this.service,
+    required this.allowAllDeletion,
     this.onUserTap,
     super.key,
   });
 
   /// The user id of the current user
   final String userId;
+
+  /// Allow all posts to be deleted instead of
+  ///  only the posts of the current user
+  final bool allowAllDeletion;
+
   final TimelineOptions options;
 
   final TimelinePost post;
@@ -72,7 +78,7 @@ class _TimelinePostWidgetState extends State<TimelinePostWidget> {
                                 28,
                               ) ??
                               CircleAvatar(
-                                radius: 20,
+                                radius: 14,
                                 backgroundImage: CachedNetworkImageProvider(
                                   widget.post.creator!.imageUrl!,
                                 ),
@@ -80,10 +86,10 @@ class _TimelinePostWidgetState extends State<TimelinePostWidget> {
                         ] else ...[
                           widget.options.anonymousAvatarBuilder?.call(
                                 widget.post.creator!,
-                                40,
+                                28,
                               ) ??
                               const CircleAvatar(
-                                radius: 20,
+                                radius: 14,
                                 child: Icon(
                                   Icons.person,
                                 ),
@@ -94,7 +100,7 @@ class _TimelinePostWidgetState extends State<TimelinePostWidget> {
                           widget.options.nameBuilder
                                   ?.call(widget.post.creator) ??
                               widget.post.creator?.fullName ??
-                              widget.options.translations.anonymousUser!,
+                              widget.options.translations.anonymousUser,
                           style: widget.options.theme.textStyles
                                   .postCreatorTitleStyle ??
                               theme.textTheme.titleMedium,
@@ -103,12 +109,16 @@ class _TimelinePostWidgetState extends State<TimelinePostWidget> {
                     ),
                   ),
                 const Spacer(),
-                if (widget.options.allowAllDeletion ||
+                if (widget.allowAllDeletion ||
                     widget.post.creator?.userId == widget.userId)
                   PopupMenuButton(
-                    onSelected: (value) {
+                    onSelected: (value) async {
                       if (value == 'delete') {
-                        widget.onPostDelete();
+                        await showPostDeletionConfirmationDialog(
+                          widget.options,
+                          context,
+                          widget.onPostDelete,
+                        );
                       }
                     },
                     itemBuilder: (BuildContext context) =>
@@ -118,7 +128,7 @@ class _TimelinePostWidgetState extends State<TimelinePostWidget> {
                         child: Row(
                           children: [
                             Text(
-                              widget.options.translations.deletePost!,
+                              widget.options.translations.deletePost,
                               style: widget.options.theme.textStyles
                                       .deletePostStyle ??
                                   theme.textTheme.bodyMedium,
@@ -257,7 +267,7 @@ class _TimelinePostWidgetState extends State<TimelinePostWidget> {
                       onTap: widget.onTapLike,
                       child: Container(
                         color: Colors.transparent,
-                        child: widget.options.theme.likedIcon ??
+                        child: widget.options.theme.likeIcon ??
                             Icon(
                               Icons.favorite_outline,
                               color: widget.options.theme.iconColor,
@@ -318,7 +328,7 @@ class _TimelinePostWidgetState extends State<TimelinePostWidget> {
               ),
               const SizedBox(height: 4),
               Text(
-                widget.options.translations.viewPost!,
+                widget.options.translations.viewPost,
                 style: widget.options.theme.textStyles.viewPostStyle ??
                     theme.textTheme.bodySmall,
               ),
@@ -331,3 +341,39 @@ class _TimelinePostWidgetState extends State<TimelinePostWidget> {
     );
   }
 }
+
+Future<void> showPostDeletionConfirmationDialog(
+  TimelineOptions options,
+  BuildContext context,
+  Function() onPostDelete,
+) async {
+  var result = await showDialog(
+    context: context,
+    builder: (BuildContext context) =>
+        options.deletionDialogBuilder?.call(context) ??
+        AlertDialog(
+          title: Text(options.translations.deleteConfirmationTitle),
+          content: Text(options.translations.deleteConfirmationMessage),
+          actions: <Widget>[
+            TextButton(
+              onPressed: () {
+                Navigator.of(context).pop(false);
+              },
+              child: Text(options.translations.deleteCancelButton),
+            ),
+            TextButton(
+              onPressed: () {
+                Navigator.of(context).pop(true);
+              },
+              child: Text(
+                options.translations.deleteButton,
+              ),
+            ),
+          ],
+        ),
+  );
+
+  if (result == true) {
+    onPostDelete();
+  }
+}

packages/flutter_timeline_view/pubspec.yaml

@@ -4,7 +4,7 @@
 
 name: flutter_timeline_view
 description: Visual elements of the Flutter Timeline Component
-version: 3.0.1
+version: 4.0.0
 
 publish_to: none
 
@@ -23,7 +23,7 @@ dependencies:
     git: 
        url: https://github.com/Iconica-Development/flutter_timeline
        path: packages/flutter_timeline_interface
-       ref: 3.0.1
+       ref: 4.0.0
   flutter_image_picker:
     git:
       url: https://github.com/Iconica-Development/flutter_image_picker