在大屏项目遇到一个原生设置亮度调节的问题，当在原生设置里面，调节亮度调的时候，发现50%的时候，settings get system screen_brightness获取的实际亮度往往偏的很小，这是因为系统使用了非线性的调节方式，所以为了适配我们的项目需要进行调整。 1.setting里面亮度显示页面在： packages\apps\Settings\src\com\android\settings\display\BrightnessLevelPreferenceController.java我们查看其代码：/* * Copyright (C) 2017 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the * License is distri