Adds artboard parameter to onInit callback

example/lib/main.dart

@@ -6,6 +6,7 @@ import 'package:rive_example/example_state_machine.dart';
 import 'package:rive_example/liquid_download.dart';
 import 'package:rive_example/little_machine.dart';
 import 'package:rive_example/simple_animation.dart';
+import 'package:rive_example/simple_state_machine.dart';
 import 'package:rive_example/state_machine_skills.dart';
 
 void main() => runApp(MaterialApp(
@@ -133,6 +134,20 @@ class Home extends StatelessWidget {
                 );
               },
             ),
+            const SizedBox(
+              height: 10,
+            ),
+            ElevatedButton(
+              child: const Text('Simple State Machine'),
+              onPressed: () {
+                Navigator.push(
+                  context,
+                  MaterialPageRoute<void>(
+                    builder: (context) => const SimpleStateMachine(),
+                  ),
+                );
+              },
+            ),
           ],
         ),
       ),

example/lib/play_pause_animation.dart

@@ -38,7 +38,7 @@ class _PlayPauseAnimationState extends State<PlayPauseAnimation> {
           'https://cdn.rive.app/animations/vehicles.riv',
           controllers: [_controller],
           // Update the play state when the widget's initialized
-          onInit: () => setState(() {}),
+          onInit: (_) => setState(() {}),
         ),
       ),
       floatingActionButton: FloatingActionButton(

example/lib/simple_state_machine.dart

@@ -0,0 +1,40 @@
+import 'package:flutter/material.dart';
+import 'package:rive/rive.dart';
+
+class SimpleStateMachine extends StatefulWidget {
+  const SimpleStateMachine({Key? key}) : super(key: key);
+
+  @override
+  _SimpleStateMachineState createState() => _SimpleStateMachineState();
+}
+
+class _SimpleStateMachineState extends State<SimpleStateMachine> {
+  SMITrigger? _bump;
+
+  void _onRiveInit(Artboard artboard) {
+    final controller = StateMachineController.fromArtboard(artboard, 'bumpy');
+    artboard.addController(controller!);
+    _bump = controller.findInput<bool>('bump') as SMITrigger;
+  }
+
+  void _hitBump() => _bump?.fire();
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Simple Animation'),
+      ),
+      body: Center(
+        child: GestureDetector(
+          child: RiveAnimation.network(
+            'https://cdn.rive.app/animations/vehicles.riv',
+            fit: BoxFit.cover,
+            onInit: _onRiveInit,
+          ),
+          onTap: _hitBump,
+        ),
+      ),
+    );
+  }
+}