your messages and other ones differ

Author: devqcf

lib/components/message.dart

@@ -1,8 +1,14 @@
+import 'package:firebase_auth/firebase_auth.dart';
 import 'package:flutter/material.dart';
 
 class Message extends StatelessWidget {
-  Message({Key? key, required String this.text, required String this.author})
+  Message(
+      {Key? key,
+      required String this.text,
+      required String this.author,
+      required String this.authorId})
       : super(key: key);
+  String authorId;
   String text;
   String author;
 
@@ -11,13 +17,32 @@ class Message extends StatelessWidget {
     if (text == "") {
       return Container();
     }
-    return Container(
-        margin: EdgeInsets.all(5),
-        child: Card(
-          child: ListTile(
-            title: Text(text),
-            subtitle: Text(author),
+    bool getCurrentUser() {
+      final uid = FirebaseAuth.instance.currentUser?.uid;
+      if (authorId == uid) {
+        return true;
+      } else {
+        return false;
+      }
+    }
+
+    return Row(
+      mainAxisAlignment:
+          getCurrentUser() ? MainAxisAlignment.end : MainAxisAlignment.start,
+      children: [
+        Container(
+          margin: EdgeInsets.all(5),
+          child: SizedBox(
+            width: 300,
+            child: Card(
+              child: ListTile(
+                title: Text(text),
+                subtitle: Text(author),
+              ),
+            ),
           ),
-        ));
+        ),
+      ],
+    );
   }
 }

lib/screens/chat.dart

@@ -22,6 +22,7 @@ class ChatScreen extends HookWidget {
     final ScrollController _scrollController = ScrollController();
     void send() {
       final displayName = FirebaseAuth.instance.currentUser?.displayName;
+      final email = FirebaseAuth.instance.currentUser?.email;
       final userId = FirebaseAuth.instance.currentUser?.uid;
       FirebaseFirestore.instance
           .collection('Chats')
@@ -30,7 +31,7 @@ class ChatScreen extends HookWidget {
           .add({
         "at": Timestamp.now(),
         "text": messageController.value.text,
-        "author": displayName,
+        "author": displayName ?? email,
         "authorId": userId
       });
       messageController.value = TextEditingValue.empty;
@@ -80,8 +81,10 @@ class ChatScreen extends HookWidget {
                     // );
 
                     return Message(
-                        text: data['text'].toString(),
-                        author: data['author'].toString());
+                      text: data['text'].toString(),
+                      author: data['author'].toString(),
+                      authorId: data['authorId'].toString(),
+                    );
                   }).toList(),
                 );
               },