Android 10-13,默认屏幕亮度80%或100%

80%：

/vendor/mediatek/proprietary/packages/overlay/vendor/FrameworkResOverlay/res/values/config.xml

<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">

<!-- Whether a software navigation bar should be shown.-->

<bool name="config_showNavigationBar">true</bool>

<!-- Minimum screen brightness setting allowed by power manager.

Set this to 0.0 to allow screen to go to minimal brightness.-->

<item name="config_screenBrightnessSettingMinimumFloat" format="float" type="dimen">0.0</item>

<!-- Maximum screen brightness allowed by the power manager.

Set this to 1.0 for maximum brightness range.-->

<item name="config_screenBrightnessSettingMaximumFloat" format="float" type="dimen">1.0</item>

<!-- Default screen brightness setting set.

Set this to 0.4 for Default brightness Float 0.35 == 80%-->

<item name="config_screenBrightnessSettingDefaultFloat" format="float" type="dimen">0.35</item>

<!-- default color mode -->

<integer-array name="config_availableColorModes">

<item>-1</item>

</integer-array>

</resources>

100%：

/vendor/mediatek/proprietary/packages/overlay/vendor/FrameworkResOverlay/res/values/config.xml

<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">

<!-- Whether a software navigation bar should be shown.-->

<bool name="config_showNavigationBar">true</bool>

<!-- Minimum screen brightness setting allowed by power manager.

Set this to 0.0 to allow screen to go to minimal brightness.-->

<item name="config_screenBrightnessSettingMinimumFloat" format="float" type="dimen">0.0</item>

<!-- Maximum screen brightness allowed by the power manager.

Set this to 1.0 for maximum brightness range.-->

<item name="config_screenBrightnessSettingMaximumFloat" format="float" type="dimen">1.0</item>

<!-- Default screen brightness setting set.

Set this to 0.4 for Default brightness Float 0.35 == 80%-->

<item name="config_screenBrightnessSettingDefaultFloat" format="float" type="dimen">1.0</item>

<!-- default color mode -->

<integer-array name="config_availableColorModes">

<item>-1</item>

</integer-array>

</resources>

framework/base/core/res/res/valus/config.xml 这里面的几个修改没有用的

/vendor/mediatek/proprietary/packages/apps/SettingsProvider/res/values/freeme_defaults.xml修改默认亮度也是没用的