When I setState, MissingPluginException

I was ,

in pubspec.yaml dependencies: flutter: sdk: flutter screen: ^0.0.5
in androidManifest
copy to Paste in my code. https://pub.dev/packages/screen/example

code

import 'package:flutter/material.dart'; import 'package:screen/screen.dart';

void main() => runApp(new MyApp());

class MyApp extends StatefulWidget { @override _MyAppState createState() => new _MyAppState(); }

class _MyAppState extends State { bool _isKeptOn = false; double _brightness = 1.0;

@override initState() { super.initState(); initPlatformState(); }

initPlatformState() async { bool keptOn = await Screen.isKeptOn; double brightness = await Screen.brightness; setState(() { _isKeptOn = keptOn; _brightness = brightness; }); }

@override Widget build(BuildContext context) { return new MaterialApp( home: new Scaffold( appBar: new AppBar(title: new Text('Screen plugin example')), body: new Center( child: new Column(children: [ new Row( mainAxisAlignment: MainAxisAlignment.center, children: [ new Text("Screen is kept on ? "), new Checkbox( value: _isKeptOn, onChanged: (bool b) { Screen.keepOn(b); setState(() { _isKeptOn = b; }); }) ]), new Text("Brightness :"), new Slider( value: _brightness, onChanged: (double b) { setState(() { _brightness = b; }); Screen.setBrightness(b); }) ])), ), ); } }

Successful hot load.... but, When I setState, I met the "MissingPluginException"

I used flutter 2.0.1 (stable), I tried to "flutter clean".

clovisnicolas / flutter_screen

When I setState, MissingPluginException #33

I was ,

Successful hot load.... but, When I setState, I met the "MissingPluginException"