Initial commit

lib/layout/abstractCenteredRow.dart

@@ -0,0 +1,20 @@
+import 'package:flutter/material.dart';
+
+abstract class AbstractCenteredRow extends Row {
+  AbstractCenteredRow({
+    Key key,
+    TextDirection textDirection,
+    TextBaseline textBaseline,
+    mainAxisAlignment,
+    List<Widget> children: const <Widget>[],
+  }) : super(
+          children: children,
+          key: key,
+          mainAxisAlignment: mainAxisAlignment,
+          mainAxisSize: MainAxisSize.max,
+          crossAxisAlignment: CrossAxisAlignment.center,
+          textDirection: textDirection,
+          verticalDirection: VerticalDirection.down,
+          textBaseline: textBaseline,
+        );
+}