Flutter屏幕亮度控制插件screen_brightness_util_windows的使用

发布于 1周前 作者 yuanlaile 来自 Flutter

标题:Flutter屏幕亮度控制插件screen_brightness_util_windows的使用

内容如下:

The Windows implementation of screen_brightness_util.

完整示例demo:

import 'package:screen_brightness_util/screen_brightness_util.dart';

void main() {
  // 初始化屏幕亮度控制器
  ScreenBrightnessUtil screenBrightnessUtil = ScreenBrightnessUtil();

  // 设置屏幕亮度为50%
  screenBrightnessUtil.setScreenBrightness(0.5);

  // 获取当前屏幕亮度
  double currentBrightness = screenBrightnessUtil.getScreenBrightness();
  print('Current brightness: $currentBrightness');

  // 恢复默认屏幕亮度
  screenBrightnessUtil.resetScreenBrightness();
}

更多关于Flutter屏幕亮度控制插件screen_brightness_util_windows的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html

1 回复

更多关于Flutter屏幕亮度控制插件screen_brightness_util_windows的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html


当然,以下是如何在Flutter项目中使用screen_brightness_util_windows插件来控制Windows平台屏幕亮度的代码示例。

首先,确保你已经在pubspec.yaml文件中添加了screen_brightness_util_windows依赖:

dependencies:
  flutter:
    sdk: flutter
  screen_brightness_util_windows: ^最新版本号 # 替换为实际最新版本号

然后运行flutter pub get来安装依赖。

接下来,在你的Flutter项目中,你可以使用以下代码来控制屏幕亮度。请注意,由于这个插件特定于Windows平台,因此你需要确保代码仅在Windows平台上运行。

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

void main() {
  runApp(MyApp());
}

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

class _MyAppState extends State<MyApp> {
  double _brightness = 1.0; // 初始亮度设为1.0(最大亮度)

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Screen Brightness Control'),
        ),
        body: Padding(
          padding: const EdgeInsets.all(16.0),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              Slider(
                value: _brightness,
                min: 0.0,
                max: 1.0,
                divisions: 10,
                label: _brightness.toStringAsFixed(2),
                onChanged: (newValue) {
                  setState(() {
                    _brightness = newValue;
                    _setBrightness(newValue);
                  });
                },
              ),
              SizedBox(height: 20),
              ElevatedButton(
                onPressed: () async {
                  double currentBrightness = await ScreenBrightnessUtilWindows.getBrightness();
                  print('Current Brightness: $currentBrightness');
                },
                child: Text('Get Current Brightness'),
              ),
            ],
          ),
        ),
      ),
    );
  }

  Future<void> _setBrightness(double brightness) async {
    if (kIsWindows) {
      try {
        await ScreenBrightnessUtilWindows.setBrightness(brightness);
        print('Brightness set to: $brightness');
      } catch (e) {
        print('Error setting brightness: $e');
      }
    } else {
      print('This feature is only available on Windows.');
    }
  }
}

解释

  1. 依赖导入:导入screen_brightness_util_windows包。
  2. 状态管理:使用StatefulWidget来管理屏幕亮度的状态。
  3. UI组件
    • 使用Slider组件来允许用户调整屏幕亮度。
    • 使用ElevatedButton来获取当前屏幕亮度。
  4. 亮度设置
    • _setBrightness方法中,通过ScreenBrightnessUtilWindows.setBrightness来设置屏幕亮度。
    • 检查kIsWindows以确保代码仅在Windows平台上运行。

这段代码提供了一个简单的界面,用户可以通过滑动条来调整屏幕亮度,并可以通过按钮来获取当前的屏幕亮度。注意,这个插件仅在Windows平台上有效,因此在其他平台上运行时,应适当处理或提供替代方案。

回到顶部