fix messageinput focus

example/lib/main.dart

@@ -623,8 +623,8 @@ class _ChannelPageState extends State<ChannelPage> {
 
   @override
   void initState() {
-    super.initState();
     _focusNode = FocusNode();
+    super.initState();
   }
 
   @override
@@ -635,7 +635,9 @@ class _ChannelPageState extends State<ChannelPage> {
 
   void _reply(Message message) {
     setState(() => _quotedMessage = message);
-    _focusNode.requestFocus();
+    WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
+      _focusNode.requestFocus();
+    });
   }
 
   @override
@@ -752,6 +754,7 @@ class _ChannelPageState extends State<ChannelPage> {
             quotedMessage: _quotedMessage,
             onQuotedMessageCleared: () {
               setState(() => _quotedMessage = null);
+              _focusNode.unfocus();
             },
           ),
         ],

example/pubspec.yaml

@@ -1,6 +1,6 @@
 name: example
 description: A new Flutter project.
-version: 1.1.1
+version: 1.1.1+1
 
 environment:
   sdk: ">=2.2.2 <3.0.0"

lib/src/message_input.dart

@@ -203,6 +203,8 @@ class MessageInputState extends State<MessageInput> {
   bool _openFilePickerSection = false;
   int _filePickerIndex = 0;
   double _filePickerSize = _kMinMediaPickerSize;
+  KeyboardVisibilityController _keyboardVisibilityController =
+      KeyboardVisibilityController();
 
   /// The editing controller passed to the input TextField
   TextEditingController textEditingController;
@@ -2249,7 +2251,8 @@ class MessageInputState extends State<MessageInput> {
     _emojiNames = Emoji.all().map((e) => e.name);
 
     if (!kIsWeb) {
-      _keyboardListener = KeyboardVisibility.onChange.listen((visible) {
+      _keyboardListener =
+          _keyboardVisibilityController.onChange.listen((visible) {
         if (_focusNode.hasFocus) {
           _onChanged(context, textEditingController.text);
         }