merge feature/new-ui

example/lib/main.dart

@@ -1,11 +1,9 @@
 import 'dart:async';
 import 'dart:io';
 
-import 'package:example/choose_user_page.dart';
 import 'package:example/chat_info_screen.dart';
+import 'package:example/choose_user_page.dart';
 import 'package:example/group_info_screen.dart';
-import 'package:example/new_chat_screen.dart';
-import 'package:example/new_group_chat_screen.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';

example/pubspec.yaml

@@ -1,6 +1,6 @@
 name: example
 description: A new Flutter project.
-version: 1.0.106+109
+version: 1.0.107+110
 
 environment:
   sdk: ">=2.2.2 <3.0.0"

lib/src/image_footer.dart

@@ -47,10 +47,14 @@ class ImageFooter extends StatefulWidget implements PreferredSizeWidget {
     this.message,
     this.videoPackages,
     this.mediaSelectedCallBack,
-  }) : super(key: key);
+  })  : preferredSize = Size.fromHeight(kToolbarHeight),
+        super(key: key);
 
   @override
   _ImageFooterState createState() => _ImageFooterState();
+
+  @override
+  final Size preferredSize;
 }
 
 class _ImageFooterState extends State<ImageFooter> {
@@ -164,7 +168,7 @@ class _ImageFooterState extends State<ImageFooter> {
     );
   }
 
-  void _buildPhotosModal(context) {
+  Widget _buildPhotosModal(context) {
     var videoAttachments = widget.mediaAttachments
         .where((element) => element.type == 'video')
         .toList();