Android11 手动屏幕亮度调节流程代码追踪；

手动调解

在settings /systemUI中调节,settings 中调节也是调用SystemUI中的dialog 框

framework/base/packages/SystemUI/src/com/android/systemui/settings/BrightnessController.java

./frameworks/base/core/java/android/hardware/display/DisplayManager.java

./frameworks/base/core/java/android/hardware/display/DisplayManagerGlobal.java

./frameworks/base/core/java/android/hardware/display/IDisplayManager.aidl

./frameworks/base/services/core/java/com/android/server/display/DisplayManagerService.java

./frameworks/base/services/core/java/com/android/server/display/DisplayPowerController.java

./frameworks/base/services/core/java/com/android/server/display/RampAnimator.java

./frameworks/base/services/core/java/com/android/server/display/DisplayPowerState.java

—PhotonicModulator.java 内部类

./frameworks/base/services/core/java/com/android/server/display/DisplayManagerService.java

./frameworks/base/services/core/java/com/android/server/d