Outdoor Mode

An LSPosed module that enables the Outdoor brightness mode toggle in Samsung Settings and adds a Quick Settings tile to switch it without digging through Settings, currently tested on One UI 8.5.

What it does

1. Forces SecOutDoorModePreferenceController.isAvailable() to return true, making the Outdoor mode brightness option visible in Settings → Display on Samsung devices that don't show it by default.
2. Adds an Outdoor mode Quick Settings tile that turns the mode on or off from the shade. Long pressing the tile opens Settings → Display, instead of the usual app info screen.

The tile flips the display_outdoor_mode system setting, the same value the Settings switch writes, so the framework applies the brightness change on its own.

Why the module also hooks the settings provider

SettingsProvider only lets system/shell/root create settings that aren't in its PUBLIC_SETTINGS list. An app writing display_outdoor_mode normally fails with:

java.lang.IllegalArgumentException: You cannot keep your settings in the secure settings.

Granting the app WRITE_SECURE_SETTINGS does not help - the check runs before the permission is consulted. The provider lives in system_server, so the module lifts that restriction for this one key only, which lets the tile write it like any other setting. No root prompt is needed to toggle.

Requirements

• Android device with Samsung One UI
• LSPosed (Zygisk)
• Root access (to install LSPosed and the module)

Installation

1. Download and install the APK
2. Open LSPosed → Modules → Outdoor Brightness
3. Set the scope to com.android.settings and System Framework
4. Reboot (system_server is only injected at boot, so the provider hook needs it)
5. Add the Outdoor mode tile from the Quick Settings edit panel
6. Tap the tile once: the first tap asks for the Modify system settings access, after which toggling is instant

Tip: long press the tile to jump to the full Outdoor mode screen in Settings → Display.

If the tile does nothing, check that both scopes are enabled and that the app was granted Modify system settings.

How to build

# Requires Android SDK build-tools and JDK
BUILD_TOOLS="$ANDROID_HOME/build-tools/36.0.0"
ANDROID_JAR="$ANDROID_HOME/platforms/android-36/android.jar"

# Compile Java (aapt also generates R.java from the manifest and resources)
javac -source 1.8 -target 1.8 -cp "$ANDROID_JAR:XposedBridge.jar" \
    -d build/classes src/com/artisan/outdoormode/*.java build/gen/com/artisan/outdoormode/R.java

# Create dex
$BUILD_TOOLS/d8 --lib "$ANDROID_JAR" --min-api 24 \
    --output build/ build/classes/com/artisan/outdoormode/*.class

# Package APK (writes R.java into build/gen)
$BUILD_TOOLS/aapt package -f -m -J build/gen -M AndroidManifest.xml -I $ANDROID_JAR \
    -S res -A assets -F build/module.unsigned.apk

# Add dex and sign
cd build && unzip -o module.unsigned.apk -d extracted
cp classes.dex extracted/
cd extracted && zip -0 -r ../module.withdex.apk .
cd .. && $BUILD_TOOLS/zipalign -f -p 4 module.withdex.apk module.aligned.apk
$BUILD_TOOLS/apksigner sign --ks debug.keystore \
    --out outdoor-brightness.apk module.aligned.apk

Thank you @salvogiangri for giving me this idea through your UN1CA project

License

GPLv3