Added new examples

lib/appar_widget.dart

@@ -4,26 +4,7 @@ class AppBarWidget extends StatelessWidget{
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      appBar: AppBar(
-        backgroundColor: Colors.blueAccent,
-        title: new Text("Title"),
-        actions: [
-          new IconButton(
-            icon: new Icon(Icons.search),
-            onPressed: () {},
-          ),
-        ],
-        iconTheme: IconThemeData(
-          color: Colors.white,
-        ),
-        textTheme: TextTheme(
-          title: TextStyle(
-              color: Colors.white,
-              fontSize: 20.0
-          ),
-        ),
-      ),
-      body: Container(),
+      appBar: AppBar(),
     );
   }
 

lib/button_widget.dart

@@ -6,20 +6,19 @@ class ButtonWidget extends StatelessWidget{
     return Scaffold(
       appBar: AppBar(),
       body: Center(
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: <Widget>[
-            FloatingActionButton(
-                backgroundColor: Colors.orange,
-                child: Icon(Icons.mic, size: 30.0, color: Colors.white,),
-                onPressed: (){}),
-            FloatingActionButton(
-                mini: true,
-                backgroundColor: Colors.green,
-                child: Icon(Icons.mic, size: 30.0, color: Colors.white,),
-                onPressed: (){}),
-          ],
-        )
+        child: RaisedButton(
+          onPressed: (){},
+          color: Colors.yellow,
+          disabledTextColor: Colors.grey,
+          shape: RoundedRectangleBorder(
+              borderRadius: BorderRadius.circular(20.0)
+          ),
+          elevation: 20.0,
+          splashColor: Colors.green,
+          highlightColor: Colors.red,
+          highlightElevation: 1.0,
+          child: Text("Raised Button"),
+        ),
       ),
     );
   }

lib/column_widget.dart

@@ -11,26 +11,7 @@ class ColumnWidget extends StatelessWidget{
   Widget build(BuildContext context) {
     return Scaffold(
         appBar: AppBar(),
-        body: Container(
-          color: Colors.yellow,
-          child: Column(
-            mainAxisSize: MainAxisSize.max,
-            mainAxisAlignment: MainAxisAlignment.spaceAround,
-            crossAxisAlignment: CrossAxisAlignment.end,
-
-            children: <Widget>[
-              FlutterLogo(
-                size: 100.0,
-                colors: Colors.red,
-              ),
-              Text("Child Two", style: bigStyle,),
-              Container(
-                color: Colors.blue,
-                height: 100.0,
-                width: 100.0,
-              )
-            ],
-          ),
+        body: Column(
         )
     );
   }

lib/container_widget.dart

@@ -5,18 +5,11 @@ class ContainerWidget extends StatelessWidget {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(),
-      body: Container(
-        height: MediaQuery.of(context).size.height,
-        width: MediaQuery.of(context).size.width,
-        margin: EdgeInsets.all(25.0),
-        decoration: FlutterLogoDecoration(),
-      ),
+      body: Container(),
     );
   }
 }
 
-
-
 /*
 * TODO Container containing Flutter Flutter
 *
@@ -71,3 +64,34 @@ class ContainerWidget extends StatelessWidget {
 * */
 
 
+/*
+* TODO Container with Alignment property
+*
+* Container(
+        margin: EdgeInsets.all(20.0),
+        width: double.infinity,
+        height: 300.0,
+        color: Colors.red,
+        alignment: Alignment.topRight,
+        padding: EdgeInsets.all(20.0),
+        child: FlutterLogo(size: 100.0,),
+      ),
+*
+* */
+
+
+/*
+* TODO Container with Box Constraints
+*
+* Container(
+          margin: EdgeInsets.all(20.0),
+          constraints: BoxConstraints(
+            maxWidth: 400.0,
+            minWidth: 200.0
+          ),
+          width: 50.0,
+          alignment: Alignment.topCenter,
+          child: Image.network('https://picsum.photos/500/400'),
+        ),
+*
+* */