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Add special backup action for adaptive brightness data
Searching through the code in frameworks/base/services/core/java/com/android/server/display/, these two files are the relevant ones. Adaptive brightness in its current form was introduced for Android 9, and as per https://cs.android.com/android/_/android/platform/frameworks/base/+/3d9c19f2fd34cccac6fe09877ae9a6b4563a063e the storage directory moved from /data/system_de to /data/system for Android 14. Restoring this data will likely be a bit tricky, because it seems the files are only read on startup, and afterwards the BrightnessTracker will always write back its in-memory values, overwriting any other data that might be present on disk. Since the BrightnessTracker also writes its state during a regular reboot, it seems the only thing that could possibly work (other than an offline-restore through recovery or whatever) would be an immediate abrupt reboot through the `reboot` command. I haven't tested this, though, because I didn't want to mess with my phone's adaptive brightness data (which currently works very nicely).
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‎app/src/main/java/com/machiav3lli/backup/dbs/entity/SpecialInfo.kt‎

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@@ -104,6 +104,7 @@ open class SpecialInfo : PackageInfo {
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val systemDir = "/data/system"
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val userDir = "$systemDir/users/$userId"
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val systemCeDir = "/data/system_ce/$userId"
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val systemDeDirGlobal = "/data/system_de"
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val vendorDeDir = "/data/vendor_de/$userId"
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val specPrefix = "$ "
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@@ -142,6 +143,33 @@ open class SpecialInfo : PackageInfo {
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), R.drawable.ic_accounts
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)
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)
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
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val brightnessStatsBaseDir = if (Build.VERSION.SDK_INT <
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Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
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systemDeDirGlobal
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} else {
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systemDir
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}
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specialInfos
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.add(
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SpecialInfo(
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"special.adaptive.brightness",
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specPrefix + context.getString(R.string.spec_adaptiveBrightness),
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Build.VERSION.RELEASE,
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Build.VERSION.SDK_INT, arrayOf(
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// Note: Restoring these files very likely only works if
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// the device is abruptly rebooted after restoring them.
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// Also for a full backup of the adaptive brightness data,
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// the Device Health Service's app data needs to be backed
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// up, too.
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"$brightnessStatsBaseDir/ambient_brightness_stats.xml",
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"$brightnessStatsBaseDir/brightness_events.xml",
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"$systemDir/display-manager-state.xml"
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),
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R.drawable.ic_adaptive_brightness
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)
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)
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}
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specialInfos
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.add(
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SpecialInfo(

‎app/src/main/res/drawable/ic_adaptive_brightness.xml‎

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Original file line numberDiff line numberDiff line change
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<?xml version="1.0" encoding="utf-8"?><!--
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~ Neo Backup: open-source apps backup and restore app.
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~ Copyright (C) 2020 Antonios Hazim
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~
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~ This program is free software: you can redistribute it and/or modify
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~ it under the terms of the GNU Affero General Public License as
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~ published by the Free Software Foundation, either version 3 of the
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~ License, or (at your option) any later version.
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~
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~ This program is distributed in the hope that it will be useful,
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~ but WITHOUT ANY WARRANTY; without even the implied warranty of
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~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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~ GNU Affero General Public License for more details.
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~
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~ You should have received a copy of the GNU Affero General Public License
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~ along with this program. If not, see <https://www.gnu.org/licenses/>.
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-->
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<vector xmlns:android="http://schemas.android.com/apk/res/android"
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android:width="38dp"
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android:height="38dp"
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android:viewportWidth="32"
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android:viewportHeight="32">
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<path
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android:fillColor="@color/ic_special"
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android:pathData="M16,16m-16,0a16,16 0,1 1,32 0a16,16 0,1 1,-32 0" />
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<group
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android:scaleX="0.295"
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android:scaleY="0.295">
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<path
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android:fillColor="#00000000"
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android:pathData="M9,27L9,81"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,15L19,93"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M29,8L29,100"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M39,4L39,104"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M49,2L49,106"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M59,2L59,106"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M69,4L69,104"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M79,8L79,100"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M89,15L89,93"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M99,27L99,81"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M27,9L81,9"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M15,19L93,19"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M8,29L100,29"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M4,39L104,39"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M2,49L106,49"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M2,59L106,59"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M4,69L104,69"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M8,79L100,79"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M15,89L93,89"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M27,99L81,99"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,29L89,29"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,39L89,39"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,49L89,49"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,59L89,59"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,69L89,69"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,79L89,79"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M29,19L29,89"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M39,19L39,89"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M49,19L49,89"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M59,19L59,89"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M69,19L69,89"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M79,19L79,89"
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android:strokeWidth="0.8"
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android:strokeColor="#55FFFFFF" />
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</group>
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<group
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android:scaleX="0.085"
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android:scaleY="0.085"
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android:translateX="5"
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android:translateY="5">
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<path
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android:fillColor="#00000000"
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android:pathData="M128,140m-40,0a40,40 0,1 1,80 0a40,40 0,1 1,-80 0"
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android:strokeWidth="16"
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android:strokeColor="?backgroundColor"
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android:strokeLineCap="round"
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android:strokeLineJoin="round" />
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<path
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android:fillColor="#00000000"
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android:pathData="M196,116a59.8,59.8 0,0 1,48 24"
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android:strokeWidth="16"
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android:strokeColor="?backgroundColor"
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android:strokeLineCap="round"
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android:strokeLineJoin="round" />
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<path
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android:fillColor="#00000000"
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android:pathData="M12,140a59.8,59.8 0,0 1,48 -24"
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android:strokeWidth="16"
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android:strokeColor="?backgroundColor"
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android:strokeLineCap="round"
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android:strokeLineJoin="round" />
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<path
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android:fillColor="#00000000"
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android:pathData="M70.4,216a64.1,64.1 0,0 1,115.2 0"
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android:strokeWidth="16"
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android:strokeColor="?backgroundColor"
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android:strokeLineCap="round"
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android:strokeLineJoin="round" />
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<path
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android:fillColor="#00000000"
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android:pathData="M60,116A32,32 0,1 1,91.4 78"
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android:strokeWidth="16"
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android:strokeColor="?backgroundColor"
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android:strokeLineCap="round"
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android:strokeLineJoin="round" />
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<path
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android:fillColor="#00000000"
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android:pathData="M164.6,78A32,32 0,1 1,196 116"
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android:strokeWidth="16"
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android:strokeColor="?backgroundColor"
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android:strokeLineCap="round"
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android:strokeLineJoin="round" />
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</group>
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</vector>

‎app/src/main/res/values-de/strings.xml‎

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Original file line numberDiff line numberDiff line change
@@ -406,4 +406,5 @@
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<string name="prefs_theme_dynamic_light">Hell mit dynamischen Farben</string>
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<string name="prefs_theme_system_black">Systemthema (Schwarz)</string>
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<string name="prefs_theme_dynamic_dark">Dunkel mit dynamischen Farben</string>
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<string name="spec_adaptiveBrightness">Automatische Helligkeit</string>
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</resources>

‎app/src/main/res/values/strings.xml‎

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Original file line numberDiff line numberDiff line change
@@ -232,6 +232,7 @@
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<string name="spec_wallpaper">Wallpaper</string>
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<string name="spec_fingerprint">Fingerprints</string>
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<string name="spec_wifiAccessPoints">Wireless access points</string>
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<string name="spec_adaptiveBrightness">Adaptive brightness</string>
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<string name="error_creating_notification_channel">Unable to create notification channel</string>
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<string name="error_updating_schedule_mode">Error updating %1$s of schedule %2$d</string>
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<string name="permission_not_granted">Permission to access external storage is required</string>

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