Extreme battery saver: Disable location when screen is off. (2b186fa2) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/power/BatterySaverPolicy.java

+20 −4

Original line number	Diff line number	Diff line
		@@ -49,11 +49,21 @@ public class BatterySaverPolicy extends ContentObserver {

		public static final boolean DEBUG = false; // DO NOT SUBMIT WITH TRUE.

		// Value of batterySaverGpsMode such that GPS isn't affected by battery saver mode.
		/** Value of batterySaverGpsMode such that GPS isn't affected by battery saver mode. */
		public static final int GPS_MODE_NO_CHANGE = 0;
		// Value of batterySaverGpsMode such that GPS is disabled when battery saver mode
		// is enabled and the screen is off.

		/**
		* Value of batterySaverGpsMode such that GPS is disabled when battery saver mode
		* is enabled and the screen is off.
		*/
		public static final int GPS_MODE_DISABLED_WHEN_SCREEN_OFF = 1;

		/**
		* Value of batterySaverGpsMode such that location should be disabled altogether
		* when battery saver mode is enabled and the screen is off.
		*/
		public static final int GPS_MODE_ALL_DISABLED_WHEN_SCREEN_OFF = 2;

		// Secure setting for GPS behavior when battery saver mode is on.
		public static final String SECURE_KEY_GPS_MODE = "batterySaverGpsMode";

		@@ -344,7 +354,7 @@ public class BatterySaverPolicy extends ContentObserver {

		// Get default value from Settings.Secure
		final int defaultGpsMode = Settings.Secure.getInt(mContentResolver, SECURE_KEY_GPS_MODE,
		GPS_MODE_NO_CHANGE);
		GPS_MODE_ALL_DISABLED_WHEN_SCREEN_OFF);
		mGpsMode = parser.getInt(KEY_GPS_MODE, defaultGpsMode);

		// Non-device-specific parameters.
		@@ -446,6 +456,12 @@ public class BatterySaverPolicy extends ContentObserver {
		}
		}

		public int getGpsMode() {
		synchronized (mLock) {
		return mGpsMode;
		}
		}

		public ArrayMap<String, String> getFileValues(boolean interactive) {
		synchronized (mLock) {
		return interactive ? mFilesForInteractive : mFilesForNoninteractive;

services/core/java/com/android/server/power/batterysaver/BatterySaverController.java

+55 −2

Original line number	Diff line number	Diff line
		@@ -84,6 +84,23 @@ public class BatterySaverController implements BatterySaverPolicyListener {
		*/
		private boolean mPreviouslyEnabled;

		@GuardedBy("mLock")
		private boolean mIsInteractive;

		/**
		* Read-only list of plugins. No need for synchronization.
		*/
		private final Plugin[] mPlugins;

		/**
		* Plugin interface. All methods are guaranteed to be called on the same (handler) thread.
		*/
		public interface Plugin {
		void onSystemReady(BatterySaverController caller);

		void onBatterySaverChanged(BatterySaverController caller);
		}

		private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
		@Override
		public void onReceive(Context context, Intent intent) {
		@@ -109,6 +126,12 @@ public class BatterySaverController implements BatterySaverPolicyListener {
		mBatterySaverPolicy = policy;
		mBatterySaverPolicy.addListener(this);
		mFileUpdater = new FileUpdater(context);

		// Initialize plugins.
		final ArrayList<Plugin> plugins = new ArrayList<>();
		plugins.add(new BatterySaverLocationPlugin(mContext));

		mPlugins = plugins.toArray(new Plugin[plugins.size()]);
		}

		/**
		@@ -121,7 +144,7 @@ public class BatterySaverController implements BatterySaverPolicyListener {
		}

		/**
		* Called by {@link PowerManagerService} on system ready..
		* Called by {@link PowerManagerService} on system ready.
		*/
		public void systemReady() {
		final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
		@@ -130,6 +153,7 @@ public class BatterySaverController implements BatterySaverPolicyListener {

		mFileUpdater.systemReady(LocalServices.getService(ActivityManagerInternal.class)
		.isRuntimeRestarted());
		mHandler.postSystemReady();
		}

		private PowerManager getPowerManager() {
		@@ -154,6 +178,8 @@ public class BatterySaverController implements BatterySaverPolicyListener {
		private static final int ARG_DONT_SEND_BROADCAST = 0;
		private static final int ARG_SEND_BROADCAST = 1;

		private static final int MSG_SYSTEM_READY = 2;

		public MyHandler(Looper looper) {
		super(looper);
		}
		@@ -163,12 +189,22 @@ public class BatterySaverController implements BatterySaverPolicyListener {
		ARG_SEND_BROADCAST : ARG_DONT_SEND_BROADCAST, 0).sendToTarget();
		}

		public void postSystemReady() {
		obtainMessage(MSG_SYSTEM_READY, 0, 0).sendToTarget();
		}

		@Override
		public void dispatchMessage(Message msg) {
		switch (msg.what) {
		case MSG_STATE_CHANGED:
		handleBatterySaverStateChanged(msg.arg1 == ARG_SEND_BROADCAST);
		break;

		case MSG_SYSTEM_READY:
		for (Plugin p : mPlugins) {
		p.onSystemReady(BatterySaverController.this);
		}
		break;
		}
		}
		}
		@@ -188,12 +224,24 @@ public class BatterySaverController implements BatterySaverPolicyListener {
		}

		/** @return whether battery saver is enabled or not. */
		boolean isEnabled() {
		public boolean isEnabled() {
		synchronized (mLock) {
		return mEnabled;
		}
		}

		/** @return whether device is in interactive state. */
		public boolean isInteractive() {
		synchronized (mLock) {
		return mIsInteractive;
		}
		}

		/** @return Battery saver policy. */
		public BatterySaverPolicy getBatterySaverPolicy() {
		return mBatterySaverPolicy;
		}

		/**
		* @return true if launch boost should currently be disabled.
		*/
		@@ -230,6 +278,7 @@ public class BatterySaverController implements BatterySaverPolicyListener {
		listeners = mListeners.toArray(new LowPowerModeListener[mListeners.size()]);

		enabled = mEnabled;
		mIsInteractive = isInteractive;


		if (enabled) {
		@@ -250,6 +299,10 @@ public class BatterySaverController implements BatterySaverPolicyListener {
		mFileUpdater.writeFiles(fileValues);
		}

		for (Plugin p : mPlugins) {
		p.onBatterySaverChanged(this);
		}

		if (sendBroadcast) {
		if (enabled) {
		// STOPSHIP Remove the toast.

services/core/java/com/android/server/power/batterysaver/BatterySaverLocationPlugin.java

0 → 100644

+65 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/
		package com.android.server.power.batterysaver;

		import android.content.Context;
		import android.provider.Settings;
		import android.provider.Settings.Global;
		import android.util.Slog;

		import com.android.server.power.BatterySaverPolicy;
		import com.android.server.power.batterysaver.BatterySaverController.Plugin;

		public class BatterySaverLocationPlugin implements Plugin {
		private static final String TAG = "BatterySaverLocationPlugin";

		private static final boolean DEBUG = BatterySaverController.DEBUG;

		private final Context mContext;

		public BatterySaverLocationPlugin(Context context) {
		mContext = context;
		}

		@Override
		public void onBatterySaverChanged(BatterySaverController caller) {
		if (DEBUG) {
		Slog.d(TAG, "onBatterySaverChanged");
		}
		updateLocationState(caller);
		}

		@Override
		public void onSystemReady(BatterySaverController caller) {
		if (DEBUG) {
		Slog.d(TAG, "onSystemReady");
		}
		updateLocationState(caller);
		}

		private void updateLocationState(BatterySaverController caller) {
		final boolean kill =
		(caller.getBatterySaverPolicy().getGpsMode()
		== BatterySaverPolicy.GPS_MODE_ALL_DISABLED_WHEN_SCREEN_OFF) &&
		caller.isEnabled() && !caller.isInteractive();

		if (DEBUG) {
		Slog.d(TAG, "Battery saver " + (kill ? "stopping" : "restoring") + " location.");
		}
		Settings.Global.putInt(mContext.getContentResolver(),
		Global.LOCATION_GLOBAL_KILL_SWITCH, kill ? 1 : 0);
		}
		}