Adding ability to control state machine.

This commit is contained in:
Luigi Rosso
2021-03-11 20:21:35 -08:00
parent 45e536ccaa
commit 462faf20ff
24 changed files with 523 additions and 81 deletions

View File

@ -0,0 +1,67 @@
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter/widgets.dart';
import 'package:rive/rive.dart';
class ExampleAnimation extends StatefulWidget {
const ExampleAnimation({Key key}) : super(key: key);
@override
_ExampleAnimationState createState() => _ExampleAnimationState();
}
class _ExampleAnimationState extends State<ExampleAnimation> {
void _togglePlay() {
setState(() => _controller.isActive = !_controller.isActive);
}
/// Tracks if the animation is playing by whether controller is running.
bool get isPlaying => _controller?.isActive ?? false;
Artboard _riveArtboard;
RiveAnimationController _controller;
@override
void initState() {
super.initState();
// Load the animation file from the bundle, note that you could also
// download this. The RiveFile just expects a list of bytes.
rootBundle.load('assets/dino.riv').then(
(data) async {
final file = RiveFile();
// Load the RiveFile from the binary data.
if (file.import(data)) {
// The artboard is the root of the animation and gets drawn in the
// Rive widget.
final artboard = file.mainArtboard;
// Add a controller to play back a known animation on the main/default
// artboard. We store a reference to it so we can toggle playback.
artboard.addController(_controller = SimpleAnimation('Run'));
setState(() => _riveArtboard = artboard);
}
},
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Animation Example'),
),
body: Center(
child: _riveArtboard == null
? const SizedBox()
: Rive(artboard: _riveArtboard),
),
floatingActionButton: FloatingActionButton(
onPressed: _togglePlay,
tooltip: isPlaying ? 'Pause' : 'Play',
child: Icon(
isPlaying ? Icons.pause : Icons.play_arrow,
),
),
);
}
}

View File

@ -0,0 +1,83 @@
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter/widgets.dart';
import 'package:rive/rive.dart';
class ExampleStateMachine extends StatefulWidget {
const ExampleStateMachine({Key key}) : super(key: key);
@override
_ExampleStateMachineState createState() => _ExampleStateMachineState();
}
class _ExampleStateMachineState extends State<ExampleStateMachine> {
void _togglePlay() {
setState(() => _controller.isActive = !_controller.isActive);
}
/// Tracks if the animation is playing by whether controller is running.
bool get isPlaying => _controller?.isActive ?? false;
Artboard _riveArtboard;
StateMachineController _controller;
StateMachineInput<bool> _hoverInput;
StateMachineInput<bool> _pressInput;
@override
void initState() {
super.initState();
// Load the animation file from the bundle, note that you could also
// download this. The RiveFile just expects a list of bytes.
rootBundle.load('assets/rocket.riv').then(
(data) async {
final file = RiveFile();
// Load the RiveFile from the binary data.
if (file.import(data)) {
// The artboard is the root of the animation and gets drawn in the
// Rive widget.
final artboard = file.mainArtboard;
var controller =
StateMachineController.fromArtboard(artboard, 'Button');
if (controller != null) {
artboard.addController(controller);
_hoverInput = controller.findInput('Hover');
_pressInput = controller.findInput('Press');
}
setState(() => _riveArtboard = artboard);
}
},
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.grey,
appBar: AppBar(
title: const Text('State Machine Example'),
),
body: Center(
child: _riveArtboard == null
? const SizedBox()
: MouseRegion(
onEnter: (_) => _hoverInput.value = true,
onExit: (_) => _hoverInput.value = false,
child: GestureDetector(
onTapDown: (_) => _pressInput.value = true,
onTapCancel: () => _pressInput.value = false,
onTapUp: (_) => _pressInput.value = false,
child: SizedBox(
width: 250,
height: 250,
child: Rive(
artboard: _riveArtboard,
),
),
),
),
),
);
}
}

View File

@ -1,77 +1,49 @@
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:rive/rive.dart';
import 'package:rive_example/example_animation.dart';
import 'package:rive_example/example_state_machine.dart';
void main() => runApp(MyApp());
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> with SingleTickerProviderStateMixin {
@override
Widget build(BuildContext context) {
return const MaterialApp(
home: MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key key}) : super(key: key);
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
void _togglePlay() {
setState(() => _controller.isActive = !_controller.isActive);
}
/// Tracks if the animation is playing by whether controller is running.
bool get isPlaying => _controller?.isActive ?? false;
Artboard _riveArtboard;
RiveAnimationController _controller;
@override
void initState() {
super.initState();
// Load the animation file from the bundle, note that you could also
// download this. The RiveFile just expects a list of bytes.
rootBundle.load('assets/off_road_car.riv').then(
(data) async {
final file = RiveFile();
// Load the RiveFile from the binary data.
if (file.import(data)) {
// The artboard is the root of the animation and gets drawn in the
// Rive widget.
final artboard = file.mainArtboard;
// Add a controller to play back a known animation on the main/default
// artboard.We store a reference to it so we can toggle playback.
artboard.addController(_controller = SimpleAnimation('idle'));
setState(() => _riveArtboard = artboard);
}
},
);
}
void main() => runApp(MaterialApp(
title: 'Navigation Basics',
home: Home(),
));
class Home extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: _riveArtboard == null
? const SizedBox()
: Rive(artboard: _riveArtboard),
appBar: AppBar(
title: const Text('Rive Examples'),
),
floatingActionButton: FloatingActionButton(
onPressed: _togglePlay,
tooltip: isPlaying ? 'Pause' : 'Play',
child: Icon(
isPlaying ? Icons.pause : Icons.play_arrow,
body: Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
ElevatedButton(
child: const Text('Animation'),
onPressed: () {
Navigator.push(
context,
MaterialPageRoute<void>(
builder: (context) => const ExampleAnimation(),
),
);
},
),
const SizedBox(
height: 10,
),
ElevatedButton(
child: const Text('State Machine'),
onPressed: () {
Navigator.push(
context,
MaterialPageRoute<void>(
builder: (context) => const ExampleStateMachine(),
),
);
},
),
],
),
),
);