[Widget to Page Process][SAG4X]

FlutterSetup.txt

@@ -0,0 +1,37 @@
+Add the layout widget to the page
+
+Simply this process
+
+class MyApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Flutter layout demo',
+      home: Scaffold(
+        appBar: AppBar(
+          title: Text('Flutter layout demo'),
+        ),
+        body: Center(
+          child: Text('Hello World'),
+        ),
+      ),
+    );
+  }
+}
+
+
+What is Stateless and Stateful means?
+
+A widget is either stateful or stateless. 
+If a widget can change—when a user interacts with it, for example—it’s stateful.
+
+A stateless widget never changes. Icon, IconButton, and Text are examples of stateless widgets. Stateless widgets subclass StatelessWidget.
+
+A stateful widget is dynamic: 
+for example, it can change its appearance in response to events triggered by user interactions or when it receives data. 
+Checkbox, Radio, Slider, InkWell, Form, and TextField are examples of stateful widgets. 
+Stateful widgets subclass StatefulWidget.
+
+A widget’s state is stored in a State object, separating the widget’s state from its appearance. The state consists of values that can change, like a slider’s current value or whether a checkbox is checked. When the widget’s state changes, the state object calls setState(), telling the framework to redraw the widget.
+
+