Display virtual directory

lib/models/user.dart

@@ -41,6 +41,9 @@ class User extends CacheModel {
   /// Get user display name
   String get displayName => htmlDecodeCharacters(fullName);
 
+  bool get hasVirtualDirectory =>
+      virtualDirectory != null && virtualDirectory.length > 0;
+
   Map<String, dynamic> toMap() {
     return {
       UserTableContract.C_ID: id,

lib/ui/widgets/tablet_mode/user_page_tablet.dart

@@ -65,28 +65,46 @@ class _UserPageTabletState extends State<UserPageTablet> {
         showPostsTarget: false,
       );
 
+  /// Main user information card
   Widget _buildMainCard() => ConstrainedBox(
-        constraints: BoxConstraints(minWidth: 200),
+        constraints: BoxConstraints(maxWidth: 200),
         child: Card(
           child: Padding(
             padding: const EdgeInsets.all(8.0),
             child: Column(
               children: <Widget>[
                 Center(child: AccountImageWidget(user: _userInfo, width: 75)),
-                SizedBox(height: 10),
+                _MainCardSpacer(),
                 Text(
                   _userInfo.displayName,
+                  textAlign: TextAlign.center,
                   style: TextStyle(fontSize: 20),
                 ),
-                SizedBox(height: 10),
+                _MainCardSpacer(),
-                SizedBox(height: 10),
+                Container(
+                    child: _userInfo.hasVirtualDirectory
+                        ? Text("@${_userInfo.virtualDirectory}")
+                        : null),
+                _MainCardSpacer(visible: _userInfo.hasVirtualDirectory),
                 LikeWidget(likeElement: _userInfo),
-                SizedBox(height: 10),
               ],
             ),
           ),
         ),
       );
 
+  /// Build user information card
   Widget _buildAboutCard() => Container();
 }
+
+class _MainCardSpacer extends StatelessWidget {
+  final bool visible;
+
+  const _MainCardSpacer({this.visible = true, Key key})
+      : assert(visible != null),
+        super(key: key);
+
+  @override
+  Widget build(BuildContext context) =>
+      visible ? SizedBox(height: 10) : Container();
+}