codelab4-1

lib/main.dart

@@ -27,6 +27,11 @@ class MyApp extends StatelessWidget {
 
 class MyAppState extends ChangeNotifier {
   var current = WordPair.random();
+  
+  void getNext() {
+    current = WordPair.random();
+    notifyListeners();
+  }
 }
 
 class MyHomePage extends StatelessWidget {
@@ -42,7 +47,7 @@ class MyHomePage extends StatelessWidget {
           //
           ElevatedButton(
             onPressed: () {
-              print('button pressed!');
+              appState.getNext();
             },
             child: Text('Next'),
           ),