lint changes

packages/stream_chat_flutter/lib/src/info_tile.dart

@@ -2,16 +2,11 @@ import 'package:flutter/material.dart';
 import 'package:flutter_portal/flutter_portal.dart';
 import 'package:stream_chat_flutter/src/stream_chat_theme.dart';
 
+/// Tile to display a message, used in stream chat to display connection status
 class InfoTile extends StatelessWidget {
-  final String message;
+  /// Constructor for creating an [InfoTile] widget
-  final Widget child;
-  final bool showMessage;
-  final Alignment? tileAnchor;
-  final Alignment? childAnchor;
-  final TextStyle? textStyle;
-  final Color? backgroundColor;
-
   const InfoTile({
+    Key? key,
     required this.message,
     required this.child,
     required this.showMessage,
@@ -19,11 +14,31 @@ class InfoTile extends StatelessWidget {
     this.childAnchor,
     this.textStyle,
     this.backgroundColor,
-  });
+  }) : super(key: key);
+
+  /// String to display
+  final String message;
+
+  /// Widget to display over
+  final Widget child;
+
+  /// Flag to show message
+  final bool showMessage;
+
+  /// Anchor for tile - [portalAnchor] for [PortalEntry]
+  final Alignment? tileAnchor;
+
+  /// Alignment for child - [childAnchor] for [PortalEntry]
+  final Alignment? childAnchor;
+
+  /// [TextStyle] for message
+  final TextStyle? textStyle;
+
+  /// Background color for tile
+  final Color? backgroundColor;
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context) => PortalEntry(
-    return PortalEntry(
         visible: showMessage,
         portalAnchor: tileAnchor ?? Alignment.topCenter,
         childAnchor: childAnchor ?? Alignment.bottomCenter,
@@ -46,4 +61,3 @@ class InfoTile extends StatelessWidget {
         child: child,
       );
 }
-}

packages/stream_chat_flutter/lib/src/media_list_view.dart

@@ -5,8 +5,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:photo_manager/photo_manager.dart';
 import 'package:stream_chat_flutter/src/stream_svg_icon.dart';
-
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
-import '../stream_chat_flutter.dart';
 
 extension on Duration {
   String format() {
@@ -19,16 +18,21 @@ extension on Duration {
   }
 }
 
+/// Constructs a list of media
 class MediaListView extends StatefulWidget {
-  final List<String> selectedIds;
+  /// Constructor for creating a [MediaListView] widget
-  final void Function(AssetEntity media)? onSelect;
-
   const MediaListView({
     Key? key,
     this.selectedIds = const [],
     this.onSelect,
   }) : super(key: key);
 
+  /// Stores the media selected
+  final List<String> selectedIds;
+
+  /// Callback for on media selected
+  final void Function(AssetEntity media)? onSelect;
+
   @override
   _MediaListViewState createState() => _MediaListViewState();
 }
@@ -39,13 +43,12 @@ class _MediaListViewState extends State<MediaListView> {
   int _currentPage = 0;
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context) => LazyLoadScrollView(
-    return LazyLoadScrollView(
         onEndOfPage: () async => _getMedia(),
         child: GridView.builder(
           itemCount: _media.length,
           controller: _scrollController,
-        gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
+          gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
             crossAxisCount: 3,
           ),
           itemBuilder: (
@@ -66,8 +69,8 @@ class _MediaListViewState extends State<MediaListView> {
                     AspectRatio(
                       aspectRatio: 1,
                       child: FadeInImage(
-                      fadeInDuration: Duration(milliseconds: 300),
+                        fadeInDuration: const Duration(milliseconds: 300),
-                      placeholder: AssetImage(
+                        placeholder: const AssetImage(
                           'images/placeholder.png',
                           package: 'stream_chat_flutter',
                         ),
@@ -80,8 +83,9 @@ class _MediaListViewState extends State<MediaListView> {
                     Positioned.fill(
                       child: IgnorePointer(
                         child: AnimatedOpacity(
-                        duration: Duration(milliseconds: 300),
+                          duration: const Duration(milliseconds: 300),
-                        opacity: widget.selectedIds.any((id) => id == media.id)
+                          opacity:
+                              widget.selectedIds.any((id) => id == media.id)
                                   ? 1.0
                                   : 0.0,
                           child: Container(
@@ -100,8 +104,9 @@ class _MediaListViewState extends State<MediaListView> {
                                   StreamChatTheme.of(context).colorTheme.white,
                               child: StreamSvgIcon.check(
                                 size: 24,
-                              color:
+                                color: StreamChatTheme.of(context)
-                                  StreamChatTheme.of(context).colorTheme.black,
+                                    .colorTheme
+                                    .black,
                               ),
                             ),
                           ),
@@ -135,7 +140,6 @@ class _MediaListViewState extends State<MediaListView> {
           },
         ),
       );
-  }
 
   @override
   void initState() {
@@ -165,36 +169,38 @@ class _MediaListViewState extends State<MediaListView> {
   }
 }
 
+/// ImageProvider implementation
 class MediaThumbnailProvider extends ImageProvider<MediaThumbnailProvider> {
+  /// Constructor for creating a [MediaThumbnailProvider]
   const MediaThumbnailProvider({
     required this.media,
   });
 
+  /// Media to load
   final AssetEntity media;
 
   @override
-  ImageStreamCompleter load(key, decode) {
+  ImageStreamCompleter load(
-    return MultiFrameImageStreamCompleter(
+          MediaThumbnailProvider key, DecoderCallback decode) =>
+      MultiFrameImageStreamCompleter(
         codec: _loadAsync(key, decode),
         scale: 1,
         informationCollector: () sync* {
           yield ErrorDescription('Id: ${media.id}');
         },
       );
-  }
 
   Future<ui.Codec> _loadAsync(
       MediaThumbnailProvider key, DecoderCallback decode) async {
-    assert(key == this);
+    assert(key == this, 'Checks MediaThumbnailProvider');
     final bytes = await media.thumbData;
 
-    return await decode(bytes!);
+    return decode(bytes!);
   }
 
   @override
-  Future<MediaThumbnailProvider> obtainKey(ImageConfiguration configuration) {
+  Future<MediaThumbnailProvider> obtainKey(ImageConfiguration configuration) =>
-    return SynchronousFuture<MediaThumbnailProvider>(this);
+      SynchronousFuture<MediaThumbnailProvider>(this);
-  }
 
   @override
   bool operator ==(dynamic other) {

packages/stream_chat_flutter/lib/src/mention_tile.dart

@@ -3,8 +3,19 @@ import 'package:flutter/material.dart';
 import '../stream_chat_flutter.dart';
 
 /// This widget is used for showing user tiles for mentions
-/// Use [title], [subtitle], [leading], [trailing] for substituting widgets in respective positions
+/// Use [title], [subtitle], [leading], [trailing] for
+/// substituting widgets in respective positions
 class MentionTile extends StatelessWidget {
+  /// Constructor for creating a [MentionTile] widget
+  const MentionTile(
+    this.member, {
+    Key? key,
+    this.title,
+    this.subtitle,
+    this.leading,
+    this.trailing,
+  }) : super(key: key);
+
   /// Member to display in the tile
   final Member member;
 
@@ -20,34 +31,25 @@ class MentionTile extends StatelessWidget {
   /// Widget at the end of tile
   final Widget? trailing;
 
-  const MentionTile(
-    this.member, {
-    this.title,
-    this.subtitle,
-    this.leading,
-    this.trailing,
-  });
-
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context) => SizedBox(
-    return Container(
         height: 56,
         child: Row(
           children: [
-          SizedBox(
+            const SizedBox(
               width: 16,
             ),
             leading ??
                 UserAvatar(
                   constraints: BoxConstraints.tight(
-                  Size(
+                    const Size(
                       40,
                       40,
                     ),
                   ),
                   user: member.user!,
                 ),
-          SizedBox(
+            const SizedBox(
               width: 8,
             ),
             Expanded(
@@ -64,7 +66,7 @@ class MentionTile extends StatelessWidget {
                           overflow: TextOverflow.ellipsis,
                           style: StreamChatTheme.of(context).textTheme.bodyBold,
                         ),
-                  SizedBox(
+                    const SizedBox(
                       height: 2,
                     ),
                     subtitle ??
@@ -98,4 +100,3 @@ class MentionTile extends StatelessWidget {
         ),
       );
 }
-}

packages/stream_chat_flutter/lib/src/message_action.dart

@@ -3,6 +3,13 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
 /// Class describing a message action
 class MessageAction {
+  /// returns a new instance of a [MessageAction]
+  MessageAction({
+    this.leading,
+    this.title,
+    this.onTap,
+  });
+
   /// leading widget
   final Widget? leading;
 
@@ -11,11 +18,4 @@ class MessageAction {
 
   /// callback called on tap
   final OnMessageTap? onTap;
-
-  /// returns a new instance of a [MessageAction]
-  MessageAction({
-    this.leading,
-    this.title,
-    this.onTap,
-  });
 }