Adjust Phone Brightness in Flutter

I wanted to make an app to regulate the phone brightness (android) but cannot find anything.

The only thing that I found is the screen plugin but visual studio code doesn't accept it.

Do you guy maybe have a practical example that I can use?

Try use screen_brightness, like this:

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.red,
      body: Center(
        child: FutureBuilder<double>(
          future: ScreenBrightness().current,
          builder: (context, snapshot) {
            double currentBrightness = 0;
            if (snapshot.hasData) {
              currentBrightness = snapshot.data!;
            }

            return StreamBuilder<double>(
              stream: ScreenBrightness().onCurrentBrightnessChanged,
              builder: (context, snapshot) {
                double changedBrightness = currentBrightness;
                if (snapshot.hasData) {
                  changedBrightness = snapshot.data!;
                }

                return Column(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    FutureBuilder<bool>(
                      future: ScreenBrightness().hasChanged,
                      builder: (context, snapshot) {
                        return Text(
                            'Brightness has changed via plugin: ${snapshot.data}');
                      },
                    ),
                    Text('Current brightness: $changedBrightness'),
                    Slider.adaptive(
                      value: changedBrightness,
                      onChanged: (value) {
                        setBrightness(value);
                      },
                    ),
                  ],
                );
              },
            );
          },
        ),
      ),
    );
  }

  Future<void> setBrightness(double brightness) async {
    try {
      await ScreenBrightness().setScreenBrightness(brightness);
    } catch (e) {
      debugPrint(e.toString());
      throw 'Failed to set brightness';
    }
  }

  Future<double> get currentBrightness async {
    try {
      return await ScreenBrightness().current;
    } catch (e) {
      print(e);
      throw 'Failed to get current brightness';
    }
  }
}

Remember that this package won't work on emulator.