update to main.dart

rescueapp/lib/main.dart

+import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
+import 'MyHomePage2.dart';
+
 void main() {
   runApp(MyApp());
 }
@@ -11,103 +14,58 @@ class MyApp extends StatelessWidget {
     return MaterialApp(
       title: 'KatApp',
       theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // Try running your application with "flutter run". You'll see the
-        // application has a blue toolbar. Then, without quitting the app, try
-        // changing the primarySwatch below to Colors.green and then invoke
-        // "hot reload" (press "r" in the console where you ran "flutter run",
-        // or simply save your changes to "hot reload" in a Flutter IDE).
-        // Notice that the counter didn't reset back to zero; the application
-        // is not restarted.
-        primarySwatch: Colors.blue,
+         primarySwatch: Colors.blue,
       ),
-      home: MyHomePage(title: 'KatApp Home Page'),
+        home: MyHomePage()
+      //home: MyHomePage(title: 'KatApp Home Page'),
     );
   }
 }
 
-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('KatApp Startseite'),
       ),
-      body: Center(
-        // Center is a layout widget. It takes a single child and positions it
-        // in the middle of the parent.
+
+        body: Center(
         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(
-              '$_counter',
-              style: Theme.of(context).textTheme.headline4,
-            ),
-          ],
+            children: <Widget>[
+              SizedBox(
+                height: 250,
+              ),
+              SizedBox(
+              child: Container (
+                child: RaisedButton(
+               child: Text('ÜBUNG', style: TextStyle(fontSize: 22, color: Colors.white,)),
+                  color: Colors.green,
+                  onPressed: () {
+                  Navigator.push(
+                    context,
+                    MaterialPageRoute(builder: (context) => MyHomePage2()),
+                            );
+                          },
+                        ))
+        ),
+          SizedBox (
+            height: 20,
+          ),
+         SizedBox (
+            child: Container (
+              child: RaisedButton(
+                 child: Text('REAL',style: TextStyle(fontSize: 22, color: Colors.white)),
+                  color: Colors.red,
+                  onPressed: () {
+                    Navigator.push(
+                    context,
+                    MaterialPageRoute(builder: (context) => MyHomePage()),
+                    );}
+              ) ),),
+            ],
         ),
       ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _incrementCounter,
-        tooltip: 'Increment',
-        child: Icon(Icons.add),
-      ), // This trailing comma makes auto-formatting nicer for build methods.
     );
   }
 }