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update quickstart to use new API

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This commit is contained in:
Nick Fisher
2024-06-19 13:32:40 +08:00
parent ae15f2114e
commit e823083e86
1 changed files with 44 additions and 26 deletions
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70
examples/flutter/quickstart/lib/main.dart
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@@ -4,7 +4,6 @@ import 'package:thermion_flutter/thermion_flutter.dart';
import 'package:vector_math/vector_math_64.dart' as v;
import 'dart:math';
void main() {
runApp(const MyApp());
}
@@ -35,40 +34,59 @@ class MyHomePage extends StatefulWidget {
class _MyHomePageState extends State<MyHomePage> {
bool _loaded = false;
late ThermionFlutterPlugin _thermionFlutterPlugin;
late Future<ThermionViewer> _thermionViewer;
ThermionViewer? _thermionViewer;
@override
void initState() {
super.initState();
_thermionFlutterPlugin = ThermionFlutterPlugin();
_thermionViewer = _thermionFlutterPlugin.initialize();
}
ThermionFlutterTexture? _texture;
Future _load() async {
var viewer = await ThermionFlutterPlugin.createViewer();
_thermionViewer = viewer;
_thermionViewer!.loadSkybox("assets/default_env_skybox.ktx");
_thermionViewer!.loadGlb("assets/cube.glb");
_thermionViewer!.setCameraPosition(0, 1, 10);
_thermionViewer!.setCameraRotation(
v.Quaternion.axisAngle(v.Vector3(1, 0, 0), -30 / 180 * pi) *
v.Quaternion.axisAngle(v.Vector3(0, 1, 0), 15 / 180 * pi));
_thermionViewer!.addLight(LightType.SUN, 7500, 50000, 0, 0, 0, 1, -1, -1);
_thermionViewer!.setRendering(true);
_loaded = true;
setState(() {});
}
Future _unload() async {
await ThermionFlutterPlugin.destroyTexture(_texture!);
var viewer = _thermionViewer!;
_thermionViewer = null;
setState(() {});
await viewer.dispose();
_loaded = false;
setState(() {});
}
Widget _loadButton() {
return Center(
child: ElevatedButton(child: const Text("Load"), onPressed: _load));
}
Widget _unloadButton() {
return Center(
child: ElevatedButton(child: const Text("Unload"), onPressed: _unload));
}
@override
Widget build(BuildContext context) {
return Stack(children: [
Positioned.fill(child: ThermionWidget(plugin: _thermionFlutterPlugin)),
if (!_loaded)
Center(
child: ElevatedButton(
child: const Text("Load"),
onPressed: () async {
var viewer = await _thermionViewer;
await viewer.loadSkybox("assets/default_env_skybox.ktx");
await viewer.loadGlb("assets/cube.glb");
await viewer.setCameraPosition(0, 1, 10);
await viewer.setCameraRotation(v.Quaternion.axisAngle(
v.Vector3(1, 0, 0), -30 / 180 * pi) *
v.Quaternion.axisAngle(
v.Vector3(0, 1, 0), 15 / 180 * pi));
await viewer.addLight(
LightType.SUN, 7500, 50000, 0, 0, 0, 1, -1, -1);
await viewer.setRendering(true);
_loaded = true;
setState(() {});
}))
if (_thermionViewer != null)
Positioned.fill(child: ThermionWidget(viewer: _thermionViewer!)),
if (!_loaded) _loadButton(),
if (_loaded) _unloadButton(),
]);
}
}