Add transient night mode in car mode when targeting Q
To support Android Auto, make UiModeManager.setNightMode transient when the device is in car mode. The manager will update the current visible night mode, but will not persist the setting. When exiting car mode, night mode is restored from the previous persisted setting.
If the user explicitly toggles night mode from settings, it will flip the visible mode and persisted setting, ignoring the transient behavior. This is handled in ag/6191550.
Bug: 117346726
Test: manual test app
Test: atest UiModeManagerTest CTS test in ag/6190842
Change-Id: I795f9b64a4d00bd3ecf47787e11aeb9331a64643
diff --git a/services/core/java/com/android/server/UiModeManagerService.java b/services/core/java/com/android/server/UiModeManagerService.java
index 1b1e6ad..7e63ba6e 100644
--- a/services/core/java/com/android/server/UiModeManagerService.java
+++ b/services/core/java/com/android/server/UiModeManagerService.java
@@ -30,11 +30,13 @@
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
+import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.BatteryManager;
import android.os.Binder;
+import android.os.Build;
import android.os.Handler;
import android.os.PowerManager;
import android.os.RemoteException;
@@ -340,8 +342,12 @@
try {
synchronized (mLock) {
if (mNightMode != mode) {
- Settings.Secure.putIntForUser(getContext().getContentResolver(),
- Settings.Secure.UI_NIGHT_MODE, mode, user);
+ // Only persist setting if not transient night mode or not in car mode
+ if (!shouldTransientNightWhenInCarMode() || !mCarModeEnabled) {
+ Settings.Secure.putIntForUser(getContext().getContentResolver(),
+ Settings.Secure.UI_NIGHT_MODE, mode, user);
+ }
+
mNightMode = mode;
updateLocked(0, 0);
}
@@ -424,9 +430,39 @@
}
}
+ // Night mode settings in car mode are only persisted below Q.
+ // When targeting Q, changes are not saved and night mode will be re-read
+ // from settings when exiting car mode.
+ private boolean shouldTransientNightWhenInCarMode() {
+ int uid = Binder.getCallingUid();
+ PackageManager packageManager = getContext().getPackageManager();
+ String[] packagesForUid = packageManager.getPackagesForUid(uid);
+ if (packagesForUid == null || packagesForUid.length == 0) {
+ return false;
+ }
+
+ try {
+ ApplicationInfo appInfo = packageManager.getApplicationInfoAsUser(
+ packagesForUid[0], 0, uid);
+
+ return appInfo.targetSdkVersion >= Build.VERSION_CODES.Q;
+ } catch (PackageManager.NameNotFoundException ignored) {
+ }
+
+ return false;
+ }
+
void setCarModeLocked(boolean enabled, int flags) {
if (mCarModeEnabled != enabled) {
mCarModeEnabled = enabled;
+
+ // When transient night mode and exiting car mode, restore night mode from settings
+ if (shouldTransientNightWhenInCarMode() && !mCarModeEnabled) {
+ Context context = getContext();
+ updateNightModeFromSettings(context,
+ context.getResources(),
+ UserHandle.getCallingUserId());
+ }
}
mCarModeEnableFlags = flags;
}
@@ -484,7 +520,9 @@
uiMode |= mNightMode << 4;
}
- if (mPowerSave) {
+ // Override night mode in power save mode if not transient night mode or not in car mode
+ boolean shouldOverrideNight = !mCarModeEnabled || !shouldTransientNightWhenInCarMode();
+ if (mPowerSave && shouldOverrideNight) {
uiMode &= ~Configuration.UI_MODE_NIGHT_NO;
uiMode |= Configuration.UI_MODE_NIGHT_YES;
}