Add setting/experiment for small battery devices to have
all forced app standby enabled except for when the device
is charging.
Reverting the revert of this CL. The only change is to use
EXTRA_PLUGGED instead of EXTRA_STATUS in detecting charging
state. Verified that this passes CTS test for battery saver.
Bug: 69259147
Test: atest frameworks/base/services/tests/servicestests/src/com/android/server/ForceAppStandbyTrackerTest.java
Test: atest CtsBatterySavingTestCases
Change-Id: I4f3ffc0c865a1a3a035b6d9d6838b5056b666eb9
diff --git a/services/core/java/com/android/server/ForceAppStandbyTracker.java b/services/core/java/com/android/server/ForceAppStandbyTracker.java
index a75a367..0b3bc72 100644
--- a/services/core/java/com/android/server/ForceAppStandbyTracker.java
+++ b/services/core/java/com/android/server/ForceAppStandbyTracker.java
@@ -26,6 +26,8 @@
import android.content.Intent;
import android.content.IntentFilter;
import android.database.ContentObserver;
+import android.net.Uri;
+import android.os.BatteryManager;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
@@ -89,6 +91,9 @@
private final MyHandler mHandler;
+ @VisibleForTesting
+ FeatureFlagsObserver mFlagsObserver;
+
/**
* Pair of (uid (not user-id), packageName) with OP_RUN_ANY_IN_BACKGROUND *not* allowed.
*/
@@ -113,14 +118,36 @@
@GuardedBy("mLock")
boolean mStarted;
+ /**
+ * Only used for small battery use-case.
+ */
@GuardedBy("mLock")
- boolean mForceAllAppsStandby; // True if device is in extreme battery saver mode
+ boolean mIsPluggedIn;
@GuardedBy("mLock")
- boolean mForcedAppStandbyEnabled; // True if the forced app standby feature is enabled
+ boolean mBatterySaverEnabled;
- private class FeatureFlagObserver extends ContentObserver {
- FeatureFlagObserver() {
+ /**
+ * True if the forced app standby is currently enabled
+ */
+ @GuardedBy("mLock")
+ boolean mForceAllAppsStandby;
+
+ /**
+ * True if the forced app standby for small battery devices feature is enabled in settings
+ */
+ @GuardedBy("mLock")
+ boolean mForceAllAppStandbyForSmallBattery;
+
+ /**
+ * True if the forced app standby feature is enabled in settings
+ */
+ @GuardedBy("mLock")
+ boolean mForcedAppStandbyEnabled;
+
+ @VisibleForTesting
+ class FeatureFlagsObserver extends ContentObserver {
+ FeatureFlagsObserver() {
super(null);
}
@@ -128,6 +155,9 @@
mContext.getContentResolver().registerContentObserver(
Settings.Global.getUriFor(Settings.Global.FORCED_APP_STANDBY_ENABLED),
false, this);
+
+ mContext.getContentResolver().registerContentObserver(Settings.Global.getUriFor(
+ Settings.Global.FORCED_APP_STANDBY_FOR_SMALL_BATTERY_ENABLED), false, this);
}
boolean isForcedAppStandbyEnabled() {
@@ -135,20 +165,43 @@
Settings.Global.FORCED_APP_STANDBY_ENABLED, 1) == 1;
}
+ boolean isForcedAppStandbyForSmallBatteryEnabled() {
+ return Settings.Global.getInt(mContext.getContentResolver(),
+ Settings.Global.FORCED_APP_STANDBY_FOR_SMALL_BATTERY_ENABLED, 0) == 1;
+ }
+
@Override
- public void onChange(boolean selfChange) {
- final boolean enabled = isForcedAppStandbyEnabled();
- synchronized (mLock) {
- if (mForcedAppStandbyEnabled == enabled) {
- return;
+ public void onChange(boolean selfChange, Uri uri) {
+ if (Settings.Global.getUriFor(Settings.Global.FORCED_APP_STANDBY_ENABLED).equals(uri)) {
+ final boolean enabled = isForcedAppStandbyEnabled();
+ synchronized (mLock) {
+ if (mForcedAppStandbyEnabled == enabled) {
+ return;
+ }
+ mForcedAppStandbyEnabled = enabled;
+ if (DEBUG) {
+ Slog.d(TAG,"Forced app standby feature flag changed: "
+ + mForcedAppStandbyEnabled);
+ }
}
- mForcedAppStandbyEnabled = enabled;
- if (DEBUG) {
- Slog.d(TAG,
- "Forced app standby feature flag changed: " + mForcedAppStandbyEnabled);
+ mHandler.notifyForcedAppStandbyFeatureFlagChanged();
+ } else if (Settings.Global.getUriFor(
+ Settings.Global.FORCED_APP_STANDBY_FOR_SMALL_BATTERY_ENABLED).equals(uri)) {
+ final boolean enabled = isForcedAppStandbyForSmallBatteryEnabled();
+ synchronized (mLock) {
+ if (mForceAllAppStandbyForSmallBattery == enabled) {
+ return;
+ }
+ mForceAllAppStandbyForSmallBattery = enabled;
+ if (DEBUG) {
+ Slog.d(TAG, "Forced app standby for small battery feature flag changed: "
+ + mForceAllAppStandbyForSmallBattery);
+ }
+ updateForceAllAppStandbyState();
}
+ } else {
+ Slog.w(TAG, "Unexpected feature flag uri encountered: " + uri);
}
- mHandler.notifyFeatureFlagChanged();
}
}
@@ -289,9 +342,11 @@
mAppOpsManager = Preconditions.checkNotNull(injectAppOpsManager());
mAppOpsService = Preconditions.checkNotNull(injectIAppOpsService());
mPowerManagerInternal = Preconditions.checkNotNull(injectPowerManagerInternal());
- final FeatureFlagObserver flagObserver = new FeatureFlagObserver();
- flagObserver.register();
- mForcedAppStandbyEnabled = flagObserver.isForcedAppStandbyEnabled();
+ mFlagsObserver = new FeatureFlagsObserver();
+ mFlagsObserver.register();
+ mForcedAppStandbyEnabled = mFlagsObserver.isForcedAppStandbyEnabled();
+ mForceAllAppStandbyForSmallBattery =
+ mFlagsObserver.isForcedAppStandbyForSmallBatteryEnabled();
try {
mIActivityManager.registerUidObserver(new UidObserver(),
@@ -306,16 +361,24 @@
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_USER_REMOVED);
+ filter.addAction(Intent.ACTION_BATTERY_CHANGED);
mContext.registerReceiver(new MyReceiver(), filter);
refreshForcedAppStandbyUidPackagesLocked();
mPowerManagerInternal.registerLowPowerModeObserver(
ServiceType.FORCE_ALL_APPS_STANDBY,
- (state) -> updateForceAllAppsStandby(state.batterySaverEnabled));
+ (state) -> {
+ synchronized (mLock) {
+ mBatterySaverEnabled = state.batterySaverEnabled;
+ updateForceAllAppStandbyState();
+ }
+ });
- updateForceAllAppsStandby(mPowerManagerInternal.getLowPowerState(
- ServiceType.FORCE_ALL_APPS_STANDBY).batterySaverEnabled);
+ mBatterySaverEnabled = mPowerManagerInternal.getLowPowerState(
+ ServiceType.FORCE_ALL_APPS_STANDBY).batterySaverEnabled;
+
+ updateForceAllAppStandbyState();
}
}
@@ -340,6 +403,11 @@
return LocalServices.getService(PowerManagerInternal.class);
}
+ @VisibleForTesting
+ boolean isSmallBatteryDevice() {
+ return ActivityManager.isSmallBatteryDevice();
+ }
+
/**
* Update {@link #mRunAnyRestrictedPackages} with the current app ops state.
*/
@@ -369,18 +437,26 @@
}
}
+ private void updateForceAllAppStandbyState() {
+ synchronized (mLock) {
+ if (mForceAllAppStandbyForSmallBattery && isSmallBatteryDevice()) {
+ toggleForceAllAppsStandbyLocked(!mIsPluggedIn);
+ } else {
+ toggleForceAllAppsStandbyLocked(mBatterySaverEnabled);
+ }
+ }
+ }
+
/**
* Update {@link #mForceAllAppsStandby} and notifies the listeners.
*/
- void updateForceAllAppsStandby(boolean enable) {
- synchronized (mLock) {
- if (enable == mForceAllAppsStandby) {
- return;
- }
- mForceAllAppsStandby = enable;
-
- mHandler.notifyForceAllAppsStandbyChanged();
+ private void toggleForceAllAppsStandbyLocked(boolean enable) {
+ if (enable == mForceAllAppsStandby) {
+ return;
}
+ mForceAllAppsStandby = enable;
+
+ mHandler.notifyForceAllAppsStandbyChanged();
}
private int findForcedAppStandbyUidPackageIndexLocked(int uid, @NonNull String packageName) {
@@ -515,6 +591,11 @@
if (userId > 0) {
mHandler.doUserRemoved(userId);
}
+ } else if (Intent.ACTION_BATTERY_CHANGED.equals(intent.getAction())) {
+ synchronized (mLock) {
+ mIsPluggedIn = (intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, 0) != 0);
+ }
+ updateForceAllAppStandbyState();
}
}
}
@@ -533,7 +614,7 @@
private static final int MSG_TEMP_WHITELIST_CHANGED = 5;
private static final int MSG_FORCE_ALL_CHANGED = 6;
private static final int MSG_USER_REMOVED = 7;
- private static final int MSG_FEATURE_FLAG_CHANGED = 8;
+ private static final int MSG_FORCE_APP_STANDBY_FEATURE_FLAG_CHANGED = 8;
public MyHandler(Looper looper) {
super(looper);
@@ -563,8 +644,8 @@
obtainMessage(MSG_FORCE_ALL_CHANGED).sendToTarget();
}
- public void notifyFeatureFlagChanged() {
- obtainMessage(MSG_FEATURE_FLAG_CHANGED).sendToTarget();
+ public void notifyForcedAppStandbyFeatureFlagChanged() {
+ obtainMessage(MSG_FORCE_APP_STANDBY_FEATURE_FLAG_CHANGED).sendToTarget();
}
public void doUserRemoved(int userId) {
@@ -618,7 +699,7 @@
l.onForceAllAppsStandbyChanged(sender);
}
return;
- case MSG_FEATURE_FLAG_CHANGED:
+ case MSG_FORCE_APP_STANDBY_FEATURE_FLAG_CHANGED:
// Feature flag for forced app standby changed.
final boolean unblockAlarms;
synchronized (mLock) {
@@ -842,6 +923,18 @@
pw.println(isForceAllAppsStandbyEnabled());
pw.print(indent);
+ pw.print("Small Battery Device: ");
+ pw.println(isSmallBatteryDevice());
+
+ pw.print(indent);
+ pw.print("Force all apps standby for small battery device: ");
+ pw.println(mForceAllAppStandbyForSmallBattery);
+
+ pw.print(indent);
+ pw.print("Plugged In: ");
+ pw.println(mIsPluggedIn);
+
+ pw.print(indent);
pw.print("Foreground uids: [");
String sep = "";
@@ -880,6 +973,11 @@
final long token = proto.start(fieldId);
proto.write(ForceAppStandbyTrackerProto.FORCE_ALL_APPS_STANDBY, mForceAllAppsStandby);
+ proto.write(ForceAppStandbyTrackerProto.IS_SMALL_BATTERY_DEVICE,
+ isSmallBatteryDevice());
+ proto.write(ForceAppStandbyTrackerProto.FORCE_ALL_APPS_STANDBY_FOR_SMALL_BATTERY,
+ mForceAllAppStandbyForSmallBattery);
+ proto.write(ForceAppStandbyTrackerProto.IS_CHARGING, mIsPluggedIn);
for (int i = 0; i < mForegroundUids.size(); i++) {
if (mForegroundUids.valueAt(i)) {