From 2931fb2d4c723bde993c9266ebc2e80a8c2184fb Mon Sep 17 00:00:00 2001
From: Salvatore Giordano <salvatoregiordanoo@gmail.com>
Date: Tue, 19 Jan 2021 12:09:50 +0100
Subject: [PATCH 1/3] fix channelpreview with messagelistempty

---
 example/ios/Flutter/.last_build_id | 2 +-
 example/lib/main.dart              | 2 +-
 lib/src/channel_preview.dart       | 5 ++++-
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/example/ios/Flutter/.last_build_id b/example/ios/Flutter/.last_build_id
index e72273c3..f57e1e1f 100644
--- a/example/ios/Flutter/.last_build_id
+++ b/example/ios/Flutter/.last_build_id
@@ -1 +1 @@
-13a41b8138c4868054e44b5158f3bdd6
\ No newline at end of file
+c770358a10272b4ee1cdc2eb432445f6
\ No newline at end of file
diff --git a/example/lib/main.dart b/example/lib/main.dart
index 9eee4db0..f048f584 100644
--- a/example/lib/main.dart
+++ b/example/lib/main.dart
@@ -127,7 +127,7 @@ class ChannelListPage extends StatelessWidget {
               '\$in': [StreamChat.of(context).user.id],
             }
           },
-          sort: [SortOption('last_message_at')],
+          // sort: [SortOption('last_message_at')],
           pagination: PaginationParams(
             limit: 20,
           ),
diff --git a/lib/src/channel_preview.dart b/lib/src/channel_preview.dart
index 58557180..61603055 100644
--- a/lib/src/channel_preview.dart
+++ b/lib/src/channel_preview.dart
@@ -128,7 +128,10 @@ class ChannelPreview extends StatelessWidget {
       stream: channel.state.messagesStream,
       initialData: channel.state.messages,
       builder: (context, snapshot) {
-        final lastMessage = snapshot.data?.lastWhere((m) => m.shadowed != true);
+        final lastMessage = snapshot.data?.lastWhere(
+          (m) => m.shadowed != true,
+          orElse: () => null,
+        );
         if (lastMessage == null) {
           return SizedBox();
         }

From 7fce7ebf3858bde6fbe610de6e3647fad0f8a2bf Mon Sep 17 00:00:00 2001
From: Salvatore Giordano <salvatoregiordanoo@gmail.com>
Date: Tue, 19 Jan 2021 12:12:28 +0100
Subject: [PATCH 2/3] fix customize_channel_preview example

---
 example/ios/Flutter/.last_build_id         | 2 +-
 example/lib/customize_channel_preview.dart | 8 +++++---
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/example/ios/Flutter/.last_build_id b/example/ios/Flutter/.last_build_id
index f57e1e1f..1e10204b 100644
--- a/example/ios/Flutter/.last_build_id
+++ b/example/ios/Flutter/.last_build_id
@@ -1 +1 @@
-c770358a10272b4ee1cdc2eb432445f6
\ No newline at end of file
+c1153e968f5d6bcc19c41ac2592825f6
\ No newline at end of file
diff --git a/example/lib/customize_channel_preview.dart b/example/lib/customize_channel_preview.dart
index 3809f780..503987ae 100644
--- a/example/lib/customize_channel_preview.dart
+++ b/example/lib/customize_channel_preview.dart
@@ -62,7 +62,7 @@ class ChannelListPage extends StatelessWidget {
             }
           },
           channelPreviewBuilder: _channelPreviewBuilder,
-          sort: [SortOption('last_message_at')],
+          // sort: [SortOption('last_message_at')],
           pagination: PaginationParams(
             limit: 20,
           ),
@@ -73,8 +73,10 @@ class ChannelListPage extends StatelessWidget {
   }
 
   Widget _channelPreviewBuilder(BuildContext context, Channel channel) {
-    final lastMessage = channel.state.messages.reversed
-        .firstWhere((message) => !message.isDeleted);
+    final lastMessage = channel.state.messages.reversed.firstWhere(
+      (message) => !message.isDeleted,
+      orElse: () => null,
+    );
 
     final subtitle = (lastMessage == null ? "nothing yet" : lastMessage.text);
     final opacity = channel.state.unreadCount > .0 ? 1.0 : 0.5;

From 113c969465baf898a109bc70639a354a00032560 Mon Sep 17 00:00:00 2001
From: Salvatore Giordano <salvatoregiordanoo@gmail.com>
Date: Tue, 19 Jan 2021 12:13:19 +0100
Subject: [PATCH 3/3] version bp

---
 CHANGELOG.md | 4 ++++
 pubspec.yaml | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index af482426..e30a47f3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.2.20+4
+
+- Fix channelPreview when the message list is empty
+
 ## 0.2.20+3
 
 - Fix reaction picker score indicator
diff --git a/pubspec.yaml b/pubspec.yaml
index 1b14a71c..09380ccc 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,7 +1,7 @@
 name: stream_chat_flutter
 homepage: https://github.com/GetStream/stream-chat-flutter
 description: Stream Chat official Flutter SDK. Build your own chat experience using Dart and Flutter.
-version: 0.2.20+3
+version: 0.2.20+4
 repository: https://github.com/GetStream/stream-chat-flutter
 issue_tracker: https://github.com/GetStream/stream-chat-flutter/issues