fix messageinput

lib/src/message_input.dart

@@ -364,7 +364,10 @@ class MessageInputState extends State<MessageInput> {
                   controller: textEditingController,
                   focusNode: _focusNode,
                   onChanged: (s) {
-                    StreamChannel.of(context).channel.keyStroke();
+                    StreamChannel.of(context)
+                        .channel
+                        .keyStroke()
+                        .catchError((e) {});
 
                     setState(() {
                       _messageIsPresent = s.trim().isNotEmpty;
@@ -479,7 +482,9 @@ class MessageInputState extends State<MessageInput> {
 
   void _checkMentions(String s, BuildContext context) {
     if (textEditingController.selection.isCollapsed &&
-        (s.isNotEmpty && s[textEditingController.selection.start - 1] == '@' ||
+        (s.isNotEmpty &&
+                textEditingController.selection.start > 0 &&
+                s[textEditingController.selection.start - 1] == '@' ||
             textEditingController.text
                 .substring(0, textEditingController.selection.start)
                 .split(' ')
@@ -1569,14 +1574,9 @@ class MessageInputState extends State<MessageInput> {
       child: Padding(
         padding: const EdgeInsets.all(8.0),
         child: Center(
-            child: InkWell(
-          onTap: () {
-            sendMessage();
-          },
-          child: Icon(
-            _getIdleSendIcon(),
-            color: Colors.grey,
-          ),
+            child: Icon(
+          _getIdleSendIcon(),
+          color: Colors.grey,
         )),
       ),
     );

lib/src/stream_channel.dart

@@ -12,12 +12,14 @@ class StreamChannel extends StatefulWidget {
     Key key,
     @required this.child,
     @required this.channel,
+    this.showLoading = true,
   }) : super(
           key: key,
         );
 
   final Widget child;
   final Channel channel;
+  final bool showLoading;
 
   /// Use this method to get the current [StreamChannelState] instance
   static StreamChannelState of(BuildContext context) {
@@ -155,7 +157,7 @@ class StreamChannelState extends State<StreamChannel> {
       future: widget.channel.initialized,
       initialData: widget.channel.state != null,
       builder: (context, snapshot) {
-        if (!snapshot.hasData || !snapshot.data) {
+        if (widget.showLoading && (!snapshot.hasData || !snapshot.data)) {
           return Container(
             height: 30,
             child: Center(