cleaned states management in view

.story.md

@@ -1,9 +1,10 @@
 ---
-focus: pubspec.yaml:26
+focus: lib/main.dart:30
 ---
 
-### MVI & Clean Code: Rendering Logic of State in Flutter : Riverpod story : Let's go to business
+### MVI & Clean Code: Rendering Logic of State in Flutter : Riverpod story : The first step is to clear the unnecessary
 
 
-Let's start. We create a new project. Android studio will create a project with a counter by default. 
-We will use it further. Let's add a riverpod dependency to pubspec.yaml.
+The purpose of this article is to show you how to make your Flutter project more maintainable by separating state and logic from the user interface.
+ In the project created by default, the counter has the states of the widgets and the logic is directly in the widgets of the user interface.
+ Let's start changing. I will remove the state management from the widgets.

lib/main.dart

@@ -27,87 +27,30 @@ class MyApp extends StatelessWidget {
   }
 }
 
-class MyHomePage extends StatefulWidget {
-  MyHomePage({Key key, this.title}) : super(key: key);
-
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
-  final String title;
-
-  @override
-  _MyHomePageState createState() => _MyHomePageState();
-}
-
-class _MyHomePageState extends State<MyHomePage> {
-  int _counter = 0;
-
-  void _incrementCounter() {
-    setState(() {
-      // This call to setState tells the Flutter framework that something has
-      // changed in this State, which causes it to rerun the build method below
-      // so that the display can reflect the updated values. If we changed
-      // _counter without calling setState(), then the build method would not be
-      // called again, and so nothing would appear to happen.
-      _counter++;
-    });
-  }
-
+class MyHomePage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    // This method is rerun every time setState is called, for instance as done
-    // by the _incrementCounter method above.
-    //
-    // The Flutter framework has been optimized to make rerunning build methods
-    // fast, so that you can just rebuild anything that needs updating rather
-    // than having to individually change instances of widgets.
     return Scaffold(
       appBar: AppBar(
-        // Here we take the value from the MyHomePage object that was created by
-        // the App.build method, and use it to set our appbar title.
-        title: Text(widget.title),
+        title: Text('My Counter App'),
       ),
       body: Center(
-        // Center is a layout widget. It takes a single child and positions it
-        // in the middle of the parent.
         child: Column(
-          // Column is also a layout widget. It takes a list of children and
-          // arranges them vertically. By default, it sizes itself to fit its
-          // children horizontally, and tries to be as tall as its parent.
-          //
-          // Invoke "debug painting" (press "p" in the console, choose the
-          // "Toggle Debug Paint" action from the Flutter Inspector in Android
-          // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
-          // to see the wireframe for each widget.
-          //
-          // Column has various properties to control how it sizes itself and
-          // how it positions its children. Here we use mainAxisAlignment to
-          // center the children vertically; the main axis here is the vertical
-          // axis because Columns are vertical (the cross axis would be
-          // horizontal).
           mainAxisAlignment: MainAxisAlignment.center,
           children: <Widget>[
+            Text('You have pushed the button this many times:'),
             Text(
-              'You have pushed the button this many times:',
-            ),
-            Text(
-              '$_counter',
+              '0',
               style: Theme.of(context).textTheme.headline4,
             ),
           ],
         ),
       ),
       floatingActionButton: FloatingActionButton(
-        onPressed: _incrementCounter,
+        onPressed: () {},
         tooltip: 'Increment',
         child: Icon(Icons.add),
       ), // This trailing comma makes auto-formatting nicer for build methods.
     );
   }
-}
+}