fix video attachment fullscreen

example/lib/main.dart

@@ -94,7 +94,7 @@ class MyApp extends StatelessWidget {
     return MaterialApp(
       theme: ThemeData.light(),
       darkTheme: ThemeData.dark(),
-      themeMode: ThemeMode.system,
+      themeMode: ThemeMode.dark,
       home: Container(
         child: StreamChat(
           client: client,

lib/src/full_screen_video.dart

@@ -32,7 +32,6 @@ class _FullScreenVideoState extends State<FullScreenVideo> {
               child: CircularProgressIndicator(),
             );
           }
-
           return Chewie(
             controller: _chewieController,
           );
@@ -49,28 +48,28 @@ class _FullScreenVideoState extends State<FullScreenVideo> {
     _videoPlayerController.initialize().whenComplete(() {
       setState(() {
         initialized = true;
+        _chewieController = ChewieController(
+          videoPlayerController: _videoPlayerController,
+          autoInitialize: false,
+          aspectRatio: _videoPlayerController.value.aspectRatio,
+        );
       });
     });
 
-    _chewieController = ChewieController(
+    VoidCallback errorListener;
-      videoPlayerController: _videoPlayerController,
+    errorListener = () {
-      autoInitialize: false,
-      aspectRatio: _videoPlayerController.value.aspectRatio,
-    );
-    _videoPlayerController.addListener(() {
       if (_videoPlayerController.value.hasError) {
-        WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
+        Navigator.pop(context);
-          Navigator.pop(context);
+        launchURL(context, widget.attachment.titleLink);
-          launchURL(context, widget.attachment.titleLink);
-        });
       }
-    });
+      _videoPlayerController.removeListener(errorListener);
+    };
+    _videoPlayerController.addListener(errorListener);
   }
 
   @override
   void dispose() {
     _videoPlayerController.dispose();
-    _chewieController.dispose();
     super.dispose();
   }
 }

lib/src/image_attachment.dart

@@ -32,55 +32,61 @@ class ImageAttachment extends StatelessWidget {
       size: size,
       child: Stack(
         children: <Widget>[
-          Hero(
+          Column(
-            tag: attachment.imageUrl ??
+            children: <Widget>[
-                attachment.assetUrl ??
+              Expanded(
-                attachment.thumbUrl,
+                child: Hero(
-            child: GestureDetector(
+                  tag: attachment.imageUrl ??
-              onTap: () {
+                      attachment.assetUrl ??
-                Navigator.push(context, MaterialPageRoute(builder: (_) {
+                      attachment.thumbUrl,
-                  return FullScreenImage(
+                  child: GestureDetector(
-                    url: attachment.imageUrl ??
+                    onTap: () {
-                        attachment.assetUrl ??
+                      Navigator.push(context, MaterialPageRoute(builder: (_) {
-                        attachment.thumbUrl,
+                        return FullScreenImage(
-                  );
+                          url: attachment.imageUrl ??
-                }));
+                              attachment.assetUrl ??
-              },
+                              attachment.thumbUrl,
-              child: CachedNetworkImage(
+                        );
-                height: size?.height,
+                      }));
-                width: size?.width,
+                    },
-                placeholder: (_, __) {
+                    child: CachedNetworkImage(
-                  return Container(
+                      height: size?.height,
-                    width: size?.width,
+                      width: size?.width,
-                    height: size?.height,
+                      placeholder: (_, __) {
-                    child: Center(
+                        return Container(
-                      child: CircularProgressIndicator(),
+                          width: size?.width,
+                          height: size?.height,
+                          child: Center(
+                            child: CircularProgressIndicator(),
+                          ),
+                        );
+                      },
+                      imageUrl: attachment.thumbUrl ??
+                          attachment.imageUrl ??
+                          attachment.assetUrl,
+                      errorWidget: (context, url, error) => AttachmentError(
+                        attachment: attachment,
+                        size: size,
+                      ),
+                      fit: BoxFit.cover,
                     ),
-                  );
-                },
-                imageUrl: attachment.thumbUrl ??
-                    attachment.imageUrl ??
-                    attachment.assetUrl,
-                errorWidget: (context, url, error) => AttachmentError(
-                  attachment: attachment,
-                  size: size,
-                ),
-                fit: BoxFit.cover,
-              ),
-            ),
-          ),
-          if (attachment.title != null)
-            Positioned.fill(
-              child: Align(
-                alignment: Alignment.bottomCenter,
-                child: Material(
-                  child: AttachmentTitle(
-                    messageTheme: messageTheme,
-                    attachment: attachment,
                   ),
                 ),
               ),
-            ),
+              if (attachment.title != null)
+                Positioned.fill(
+                  child: Align(
+                    alignment: Alignment.bottomCenter,
+                    child: Material(
+                      child: AttachmentTitle(
+                        messageTheme: messageTheme,
+                        attachment: attachment,
+                      ),
+                    ),
+                  ),
+                ),
+            ],
+          ),
           if (attachment.titleLink != null || attachment.ogScrapeUrl != null)
             Positioned.fill(
               child: Material(

lib/src/message_widget.dart

@@ -13,41 +13,98 @@ import 'message_text.dart';
 
 typedef AttachmentBuilder = Widget Function(BuildContext, Message, Attachment);
 
+/// The display behaviour of a widget
 enum DisplayWidget {
+  /// Hides the widget replacing its space with a spacer
   hide,
+
+  /// Hides the widget not replacing its space
   gone,
+
+  /// Shows the widget normally
   show,
 }
 
+/// ![screenshot](https://raw.githubusercontent.com/GetStream/stream-chat-flutter/master/screenshots/message_widget.png)
+/// ![screenshot](https://raw.githubusercontent.com/GetStream/stream-chat-flutter/master/screenshots/message_widget_paint.png)
+///
+/// It shows a message with reactions, replies and user avatar.
+///
+/// Usually you don't use this widget as it's the default message widget used by [MessageListView].
+///
+/// The widget components render the ui based on the first ancestor of type [StreamChatTheme].
+/// Modify it to change the widget appearance.
 class MessageWidget extends StatelessWidget {
+  /// Function called on mention tap
   final void Function(User) onMentionTap;
+
+  /// The function called when tapping on replies
   final void Function(Message) onThreadTap;
   final Widget Function(BuildContext, Message) editMessageInputBuilder;
   final Widget Function(BuildContext, Message) textBuilder;
+
+  /// Function called on long press
   final void Function(BuildContext, Message) onMessageActions;
+
+  /// The message
   final Message message;
+
+  /// The message theme
   final MessageTheme messageTheme;
+
+  /// If true the widget will be mirrored
   final bool reverse;
+
+  /// The shape of the message text
   final ShapeBorder shape;
+
+  /// The shape of an attachment
   final ShapeBorder attachmentShape;
+
+  /// The borderside of the message text
   final BorderSide borderSide;
+
+  /// The borderside of an attachment
   final BorderSide attachmentBorderSide;
+
+  /// The border radius of the message text
   final BorderRadiusGeometry borderRadiusGeometry;
+
+  /// The border radius of an attachment
   final BorderRadiusGeometry attachmentBorderRadiusGeometry;
+
+  /// The padding of the widget
   final EdgeInsetsGeometry padding;
+
+  /// The internal padding of the message text
   final EdgeInsetsGeometry textPadding;
+
+  /// The internal padding of an attachment
   final EdgeInsetsGeometry attachmentPadding;
+
+  /// It controls the display behaviour of the user avatar
   final DisplayWidget showUserAvatar;
+
+  /// It controls the display behaviour of the sending indicator
   final DisplayWidget showSendingIndicator;
+
+  /// If true the widget will show the reactions
   final bool showReactions;
+
+  /// If true the widget will show the reply indicator
   final bool showReplyIndicator;
-  final bool isParent;
+
+  /// The function called when tapping on UserAvatar
+  final void Function(User) onUserAvatarTap;
+
+  /// If true show the users username next to the timestamp of the message
   final bool showUsername;
   final bool showTimestamp;
   final bool showDeleteMessage;
   final bool showEditMessage;
   final Map<String, AttachmentBuilder> attachmentBuilders;
-  final Map<String, String> reactionToEmoji = {
+
+  final Map<String, String> _reactionToEmoji = {
     'love': '❤️️',
     'haha': '😂',
     'like': '👍',
@@ -71,13 +128,13 @@ class MessageWidget extends StatelessWidget {
     this.showUserAvatar = DisplayWidget.show,
     this.showSendingIndicator = DisplayWidget.show,
     this.showReplyIndicator = true,
-    this.isParent = false,
     this.onThreadTap,
     this.showUsername = true,
     this.showTimestamp = true,
     this.showReactions = true,
     this.showDeleteMessage = true,
     this.showEditMessage = true,
+    this.onUserAvatarTap,
     this.onMessageActions,
     this.editMessageInputBuilder,
     this.textBuilder,
@@ -338,7 +395,7 @@ class MessageWidget extends StatelessWidget {
   Text _buildReactionsText(BuildContext context) {
     return Text(
       message.reactionCounts.keys.map((reactionType) {
-            return reactionToEmoji[reactionType] ?? '?';
+            return _reactionToEmoji[reactionType] ?? '?';
           }).join(' ') +
           ' ${message.reactionCounts.values.fold(0, (t, v) => v + t).toString()}',
       style: TextStyle(
@@ -499,6 +556,7 @@ class MessageWidget extends StatelessWidget {
                 Offset(0, messageTheme.avatarTheme.constraints.maxHeight / 2),
             child: UserAvatar(
               user: message.user,
+              onTap: onUserAvatarTap,
               constraints: messageTheme.avatarTheme.constraints,
             ),
           ),

lib/src/stream_chat_theme.dart

@@ -24,7 +24,16 @@ class StreamChatTheme extends InheritedWidget {
 
   /// Use this method to get the current [StreamChatThemeData] instance
   static StreamChatThemeData of(BuildContext context) {
-    return context.dependOnInheritedWidgetOfExactType<StreamChatTheme>().data;
+    final streamChatTheme =
+        context.dependOnInheritedWidgetOfExactType<StreamChatTheme>();
+
+    if (streamChatTheme == null) {
+      throw Exception(
+        'You must have a StreamChatTheme widget at the top of your widget tree',
+      );
+    }
+
+    return streamChatTheme.data;
   }
 }
 

lib/src/video_attachment.dart

@@ -43,7 +43,7 @@ class _VideoAttachmentState extends State<VideoAttachment> {
     }
     _chewieController = ChewieController(
         videoPlayerController: _videoPlayerController,
-        autoInitialize: false,
+        autoInitialize: true,
         showControls: false,
         aspectRatio: _videoPlayerController.value.aspectRatio,
         errorBuilder: (_, e) {
@@ -137,8 +137,8 @@ class _VideoAttachmentState extends State<VideoAttachment> {
   @override
   void initState() {
     super.initState();
-    _videoPlayerController = VideoPlayerController.network(
+    _videoPlayerController =
-        widget.attachment.localUri ?? widget.attachment.assetUrl);
+        VideoPlayerController.network(widget.attachment.assetUrl);
     _videoPlayerController.initialize().whenComplete(() {
       setState(() {
         initialized = true;

lib/stream_chat_flutter.dart

@@ -9,6 +9,7 @@ export 'src/channels_bloc.dart';
 export 'src/date_divider.dart';
 export 'src/deleted_message.dart';
 export 'src/file_attachment.dart';
+export 'src/full_screen_video.dart';
 export 'src/giphy_attachment.dart';
 export 'src/image_attachment.dart';
 export 'src/message_input.dart';

pubspec.yaml

@@ -15,10 +15,10 @@ dependencies:
   flutter_portal: ^0.1.0
   cached_network_image: ^2.2.0+1
   flutter_markdown: ^0.3.5
-  url_launcher: ^5.4.5
+  url_launcher: ^5.4.7
   video_player: ^0.10.10
   chewie: ^0.9.10
-  file_picker: ^1.8.0+2
+  file_picker: ^1.9.0+1
   image_picker: ^0.6.6+1
   flutter_keyboard_visibility: ^2.0.0
   stream_chat: