src/com/android/settings/fuelgauge/PowerUsageSummary.java

   1 /*
   2  * Copyright (C) 2009 The Android Open Source Project
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package com.android.settings.fuelgauge;
  18
  19 import android.app.Activity;
  20 import android.content.Context;
  21 import android.graphics.drawable.Drawable;
  22 import android.os.BatteryStats;
  23 import android.os.Build;
  24 import android.os.Bundle;
  25 import android.os.Handler;
  26 import android.os.Message;
  27 import android.os.Process;
  28 import android.os.SystemClock;
  29 import android.os.UserHandle;
  30 import android.provider.SearchIndexableResource;
  31 import android.support.annotation.VisibleForTesting;
  32 import android.support.v7.preference.Preference;
  33 import android.support.v7.preference.PreferenceGroup;
  34 import android.text.TextUtils;
  35 import android.text.format.DateUtils;
  36 import android.util.Log;
  37 import android.util.SparseArray;
  38 import android.util.TypedValue;
  39 import android.view.Menu;
  40 import android.view.MenuInflater;
  41 import android.view.MenuItem;
  42 import android.widget.TextView;
  43
  44 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
  45 import com.android.internal.os.BatterySipper;
  46 import com.android.internal.os.BatterySipper.DrainType;
  47 import com.android.internal.os.PowerProfile;
  48 import com.android.settings.R;
  49 import com.android.settings.Settings.HighPowerApplicationsActivity;
  50 import com.android.settings.SettingsActivity;
  51 import com.android.settings.Utils;
  52 import com.android.settings.applications.LayoutPreference;
  53 import com.android.settings.applications.ManageApplications;
  54 import com.android.settings.core.PreferenceController;
  55 import com.android.settings.core.instrumentation.MetricsFeatureProvider;
  56 import com.android.settings.dashboard.SummaryLoader;
  57 import com.android.settings.display.AutoBrightnessPreferenceController;
  58 import com.android.settings.display.BatteryPercentagePreferenceController;
  59 import com.android.settings.display.TimeoutPreferenceController;
  60 import com.android.settings.overlay.FeatureFactory;
  61 import com.android.settings.search.BaseSearchIndexProvider;
  62 import com.android.settings.widget.FooterPreferenceMixin;
  63 import com.android.settingslib.BatteryInfo;
  64
  65 import java.util.ArrayList;
  66 import java.util.Arrays;
  67 import java.util.Collections;
  68 import java.util.Comparator;
  69 import java.util.List;
  70
  71 /**
  72  * Displays a list of apps and subsystems that consume power, ordered by how much power was
  73  * consumed since the last time it was unplugged.
  74  */
  75 public class PowerUsageSummary extends PowerUsageBase {
  76
  77     static final String TAG = "PowerUsageSummary";
  78
  79     private static final boolean DEBUG = false;
  80     private static final boolean USE_FAKE_DATA = false;
  81     private static final String KEY_APP_LIST = "app_list";
  82     private static final String KEY_BATTERY_HEADER = "battery_header";
  83     private static final int MAX_ITEMS_TO_LIST = USE_FAKE_DATA ? 30 : 10;
  84     private static final int MIN_AVERAGE_POWER_THRESHOLD_MILLI_AMP = 10;
  85
  86     private static final String KEY_SCREEN_USAGE = "screen_usage";
  87     private static final String KEY_TIME_SINCE_LAST_FULL_CHARGE = "last_full_charge";
  88
  89     private static final String KEY_AUTO_BRIGHTNESS = "auto_brightness_battery";
  90     private static final String KEY_SCREEN_TIMEOUT = "screen_timeout_battery";
  91     private static final String KEY_BATTERY_SAVER_SUMMARY = "battery_saver_summary";
  92
  93     private static final int MENU_STATS_TYPE = Menu.FIRST;
  94     @VisibleForTesting
  95     static final int MENU_HIGH_POWER_APPS = Menu.FIRST + 3;
  96     @VisibleForTesting
  97     static final int MENU_ADDITIONAL_BATTERY_INFO = Menu.FIRST + 4;
  98     @VisibleForTesting
  99     static final int MENU_TOGGLE_APPS = Menu.FIRST + 5;
 100     private static final int MENU_HELP = Menu.FIRST + 6;
 101
 102     private final FooterPreferenceMixin mFooterPreferenceMixin =
 103             new FooterPreferenceMixin(this, getLifecycle());
 104
 105     @VisibleForTesting
 106     boolean mShowAllApps = false;
 107     @VisibleForTesting
 108     PowerGaugePreference mScreenUsagePref;
 109     @VisibleForTesting
 110     PowerGaugePreference mLastFullChargePref;
 111     @VisibleForTesting
 112     PowerUsageFeatureProvider mPowerFeatureProvider;
 113     @VisibleForTesting
 114     BatteryUtils mBatteryUtils;
 115
 116     private LayoutPreference mBatteryLayoutPref;
 117     private PreferenceGroup mAppListGroup;
 118     private int mStatsType = BatteryStats.STATS_SINCE_CHARGED;
 119
 120     @Override
 121     public void onCreate(Bundle icicle) {
 122         super.onCreate(icicle);
 123         setAnimationAllowed(true);
 124
 125         mBatteryLayoutPref = (LayoutPreference) findPreference(KEY_BATTERY_HEADER);
 126         mAppListGroup = (PreferenceGroup) findPreference(KEY_APP_LIST);
 127         mScreenUsagePref = (PowerGaugePreference) findPreference(KEY_SCREEN_USAGE);
 128         mLastFullChargePref = (PowerGaugePreference) findPreference(
 129                 KEY_TIME_SINCE_LAST_FULL_CHARGE);
 130         mFooterPreferenceMixin.createFooterPreference().setTitle(R.string.battery_footer_summary);
 131
 132         mBatteryUtils = BatteryUtils.getInstance(getContext());
 133
 134         initFeatureProvider();
 135     }
 136
 137     @Override
 138     public int getMetricsCategory() {
 139         return MetricsEvent.FUELGAUGE_POWER_USAGE_SUMMARY;
 140     }
 141
 142     @Override
 143     public void onResume() {
 144         super.onResume();
 145         refreshStats();
 146     }
 147
 148     @Override
 149     public void onPause() {
 150         BatteryEntry.stopRequestQueue();
 151         mHandler.removeMessages(BatteryEntry.MSG_UPDATE_NAME_ICON);
 152         super.onPause();
 153     }
 154
 155     @Override
 156     public void onDestroy() {
 157         super.onDestroy();
 158         if (getActivity().isChangingConfigurations()) {
 159             BatteryEntry.clearUidCache();
 160         }
 161     }
 162
 163     @Override
 164     public boolean onPreferenceTreeClick(Preference preference) {
 165         if (KEY_BATTERY_HEADER.equals(preference.getKey())) {
 166             performBatteryHeaderClick();
 167             return true;
 168         } else if (!(preference instanceof PowerGaugePreference)) {
 169             return super.onPreferenceTreeClick(preference);
 170         }
 171         PowerGaugePreference pgp = (PowerGaugePreference) preference;
 172         BatteryEntry entry = pgp.getInfo();
 173         AdvancedPowerUsageDetail.startBatteryDetailPage((SettingsActivity) getActivity(),
 174                 this, mStatsHelper, mStatsType, entry, pgp.getPercent());
 175         return super.onPreferenceTreeClick(preference);
 176     }
 177
 178     @Override
 179     protected String getLogTag() {
 180         return TAG;
 181     }
 182
 183     @Override
 184     protected int getPreferenceScreenResId() {
 185         return R.xml.power_usage_summary;
 186     }
 187
 188     @Override
 189     protected List<PreferenceController> getPreferenceControllers(Context context) {
 190         final List<PreferenceController> controllers = new ArrayList<>();
 191         controllers.add(new AutoBrightnessPreferenceController(context, KEY_AUTO_BRIGHTNESS));
 192         controllers.add(new TimeoutPreferenceController(context, KEY_SCREEN_TIMEOUT));
 193         controllers.add(new BatterySaverController(context, getLifecycle()));
 194         controllers.add(new BatteryPercentagePreferenceController(context));
 195         return controllers;
 196     }
 197
 198     @Override
 199     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
 200         if (DEBUG) {
 201             menu.add(Menu.NONE, MENU_STATS_TYPE, Menu.NONE, R.string.menu_stats_total)
 202                     .setIcon(com.android.internal.R.drawable.ic_menu_info_details)
 203                     .setAlphabeticShortcut('t');
 204         }
 205
 206         menu.add(Menu.NONE, MENU_HIGH_POWER_APPS, Menu.NONE, R.string.high_power_apps);
 207
 208         if (mPowerFeatureProvider.isAdditionalBatteryInfoEnabled()) {
 209             menu.add(Menu.NONE, MENU_ADDITIONAL_BATTERY_INFO,
 210                     Menu.NONE, R.string.additional_battery_info);
 211         }
 212         if (mPowerFeatureProvider.isPowerAccountingToggleEnabled()) {
 213             menu.add(Menu.NONE, MENU_TOGGLE_APPS, Menu.NONE,
 214                     mShowAllApps ? R.string.hide_extra_apps : R.string.show_all_apps);
 215         }
 216
 217         super.onCreateOptionsMenu(menu, inflater);
 218     }
 219
 220     @Override
 221     protected int getHelpResource() {
 222         return R.string.help_url_battery;
 223     }
 224
 225     @Override
 226     public boolean onOptionsItemSelected(MenuItem item) {
 227         final SettingsActivity sa = (SettingsActivity) getActivity();
 228         final Context context = getContext();
 229         final MetricsFeatureProvider metricsFeatureProvider =
 230                 FeatureFactory.getFactory(context).getMetricsFeatureProvider();
 231
 232         switch (item.getItemId()) {
 233             case MENU_STATS_TYPE:
 234                 if (mStatsType == BatteryStats.STATS_SINCE_CHARGED) {
 235                     mStatsType = BatteryStats.STATS_SINCE_UNPLUGGED;
 236                 } else {
 237                     mStatsType = BatteryStats.STATS_SINCE_CHARGED;
 238                 }
 239                 refreshStats();
 240                 return true;
 241             case MENU_HIGH_POWER_APPS:
 242                 Bundle args = new Bundle();
 243                 args.putString(ManageApplications.EXTRA_CLASSNAME,
 244                         HighPowerApplicationsActivity.class.getName());
 245                 sa.startPreferencePanel(this, ManageApplications.class.getName(), args,
 246                         R.string.high_power_apps, null, null, 0);
 247                 metricsFeatureProvider.action(context,
 248                         MetricsEvent.ACTION_SETTINGS_MENU_BATTERY_OPTIMIZATION);
 249                 return true;
 250             case MENU_ADDITIONAL_BATTERY_INFO:
 251                 startActivity(FeatureFactory.getFactory(getContext())
 252                         .getPowerUsageFeatureProvider(getContext())
 253                         .getAdditionalBatteryInfoIntent());
 254                 metricsFeatureProvider.action(context,
 255                         MetricsEvent.ACTION_SETTINGS_MENU_BATTERY_USAGE_ALERTS);
 256                 return true;
 257             case MENU_TOGGLE_APPS:
 258                 mShowAllApps = !mShowAllApps;
 259                 item.setTitle(mShowAllApps ? R.string.hide_extra_apps : R.string.show_all_apps);
 260                 metricsFeatureProvider.action(context,
 261                         MetricsEvent.ACTION_SETTINGS_MENU_BATTERY_APPS_TOGGLE, mShowAllApps);
 262                 refreshStats();
 263                 return true;
 264             default:
 265                 return super.onOptionsItemSelected(item);
 266         }
 267     }
 268
 269     private void addNotAvailableMessage() {
 270         final String NOT_AVAILABLE = "not_available";
 271         Preference notAvailable = getCachedPreference(NOT_AVAILABLE);
 272         if (notAvailable == null) {
 273             notAvailable = new Preference(getPrefContext());
 274             notAvailable.setKey(NOT_AVAILABLE);
 275             notAvailable.setTitle(R.string.power_usage_not_available);
 276             mAppListGroup.addPreference(notAvailable);
 277         }
 278     }
 279
 280     private void performBatteryHeaderClick() {
 281         final Context context = getContext();
 282         final PowerUsageFeatureProvider featureProvider = FeatureFactory.getFactory(context)
 283                 .getPowerUsageFeatureProvider(context);
 284
 285         if (featureProvider.isAdvancedUiEnabled()) {
 286             Utils.startWithFragment(getContext(), PowerUsageAdvanced.class.getName(), null,
 287                     null, 0, R.string.advanced_battery_title, null, getMetricsCategory());
 288         } else {
 289             mStatsHelper.storeStatsHistoryInFile(BatteryHistoryDetail.BATTERY_HISTORY_FILE);
 290             Bundle args = new Bundle(2);
 291             args.putString(BatteryHistoryDetail.EXTRA_STATS,
 292                     BatteryHistoryDetail.BATTERY_HISTORY_FILE);
 293             args.putParcelable(BatteryHistoryDetail.EXTRA_BROADCAST,
 294                     mStatsHelper.getBatteryBroadcast());
 295             Utils.startWithFragment(getContext(), BatteryHistoryDetail.class.getName(), args,
 296                     null, 0, R.string.history_details_title, null, getMetricsCategory());
 297         }
 298     }
 299
 300     private static boolean isSharedGid(int uid) {
 301         return UserHandle.getAppIdFromSharedAppGid(uid) > 0;
 302     }
 303
 304     private static boolean isSystemUid(int uid) {
 305         return uid >= Process.SYSTEM_UID && uid < Process.FIRST_APPLICATION_UID;
 306     }
 307
 308     /**
 309      * We want to coalesce some UIDs. For example, dex2oat runs under a shared gid that
 310      * exists for all users of the same app. We detect this case and merge the power use
 311      * for dex2oat to the device OWNER's use of the app.
 312      *
 313      * @return A sorted list of apps using power.
 314      */
 315     private static List<BatterySipper> getCoalescedUsageList(final List<BatterySipper> sippers) {
 316         final SparseArray<BatterySipper> uidList = new SparseArray<>();
 317
 318         final ArrayList<BatterySipper> results = new ArrayList<>();
 319         final int numSippers = sippers.size();
 320         for (int i = 0; i < numSippers; i++) {
 321             BatterySipper sipper = sippers.get(i);
 322             if (sipper.getUid() > 0) {
 323                 int realUid = sipper.getUid();
 324
 325                 // Check if this UID is a shared GID. If so, we combine it with the OWNER's
 326                 // actual app UID.
 327                 if (isSharedGid(sipper.getUid())) {
 328                     realUid = UserHandle.getUid(UserHandle.USER_SYSTEM,
 329                             UserHandle.getAppIdFromSharedAppGid(sipper.getUid()));
 330                 }
 331
 332                 // Check if this UID is a system UID (mediaserver, logd, nfc, drm, etc).
 333                 if (isSystemUid(realUid)
 334                         && !"mediaserver".equals(sipper.packageWithHighestDrain)) {
 335                     // Use the system UID for all UIDs running in their own sandbox that
 336                     // are not apps. We exclude mediaserver because we already are expected to
 337                     // report that as a separate item.
 338                     realUid = Process.SYSTEM_UID;
 339                 }
 340
 341                 if (realUid != sipper.getUid()) {
 342                     // Replace the BatterySipper with a new one with the real UID set.
 343                     BatterySipper newSipper = new BatterySipper(sipper.drainType,
 344                             new FakeUid(realUid), 0.0);
 345                     newSipper.add(sipper);
 346                     newSipper.packageWithHighestDrain = sipper.packageWithHighestDrain;
 347                     newSipper.mPackages = sipper.mPackages;
 348                     sipper = newSipper;
 349                 }
 350
 351                 int index = uidList.indexOfKey(realUid);
 352                 if (index < 0) {
 353                     // New entry.
 354                     uidList.put(realUid, sipper);
 355                 } else {
 356                     // Combine BatterySippers if we already have one with this UID.
 357                     final BatterySipper existingSipper = uidList.valueAt(index);
 358                     existingSipper.add(sipper);
 359                     if (existingSipper.packageWithHighestDrain == null
 360                             && sipper.packageWithHighestDrain != null) {
 361                         existingSipper.packageWithHighestDrain = sipper.packageWithHighestDrain;
 362                     }
 363
 364                     final int existingPackageLen = existingSipper.mPackages != null ?
 365                             existingSipper.mPackages.length : 0;
 366                     final int newPackageLen = sipper.mPackages != null ?
 367                             sipper.mPackages.length : 0;
 368                     if (newPackageLen > 0) {
 369                         String[] newPackages = new String[existingPackageLen + newPackageLen];
 370                         if (existingPackageLen > 0) {
 371                             System.arraycopy(existingSipper.mPackages, 0, newPackages, 0,
 372                                     existingPackageLen);
 373                         }
 374                         System.arraycopy(sipper.mPackages, 0, newPackages, existingPackageLen,
 375                                 newPackageLen);
 376                         existingSipper.mPackages = newPackages;
 377                     }
 378                 }
 379             } else {
 380                 results.add(sipper);
 381             }
 382         }
 383
 384         final int numUidSippers = uidList.size();
 385         for (int i = 0; i < numUidSippers; i++) {
 386             results.add(uidList.valueAt(i));
 387         }
 388
 389         // The sort order must have changed, so re-sort based on total power use.
 390         Collections.sort(results, new Comparator<BatterySipper>() {
 391             @Override
 392             public int compare(BatterySipper a, BatterySipper b) {
 393                 return Double.compare(b.totalPowerMah, a.totalPowerMah);
 394             }
 395         });
 396         return results;
 397     }
 398
 399     protected void refreshStats() {
 400         super.refreshStats();
 401
 402         BatteryInfo.getBatteryInfo(getContext(), new BatteryInfo.Callback() {
 403             @Override
 404             public void onBatteryInfoLoaded(BatteryInfo info) {
 405                 updateHeaderPreference(info);
 406             }
 407         });
 408
 409         cacheRemoveAllPrefs(mAppListGroup);
 410         mAppListGroup.setOrderingAsAdded(false);
 411         boolean addedSome = false;
 412
 413         final PowerProfile powerProfile = mStatsHelper.getPowerProfile();
 414         final BatteryStats stats = mStatsHelper.getStats();
 415         final double averagePower = powerProfile.getAveragePower(PowerProfile.POWER_SCREEN_FULL);
 416         final Context context = getContext();
 417
 418         final TypedValue value = new TypedValue();
 419         context.getTheme().resolveAttribute(android.R.attr.colorControlNormal, value, true);
 420         final int colorControl = context.getColor(value.resourceId);
 421         final String usedTime = context.getString(R.string.battery_used_for);
 422         final int dischargeAmount = USE_FAKE_DATA ? 5000
 423                 : stats != null ? stats.getDischargeAmount(mStatsType) : 0;
 424
 425         final long runningTime = calculateRunningTimeBasedOnStatsType();
 426         updateScreenPreference();
 427         updateLastFullChargePreference(runningTime);
 428         mAppListGroup.setTitle(getString(R.string.power_usage_list_summary,
 429                 Utils.formatElapsedTime(context, runningTime, false)));
 430
 431         if (averagePower >= MIN_AVERAGE_POWER_THRESHOLD_MILLI_AMP || USE_FAKE_DATA) {
 432             final List<BatterySipper> usageList = getCoalescedUsageList(
 433                     USE_FAKE_DATA ? getFakeStats() : mStatsHelper.getUsageList());
 434
 435             double hiddenPowerMah = mShowAllApps ? 0 :
 436                     mBatteryUtils.removeHiddenBatterySippers(usageList);
 437
 438             final int numSippers = usageList.size();
 439             for (int i = 0; i < numSippers; i++) {
 440                 final BatterySipper sipper = usageList.get(i);
 441                 double totalPower = USE_FAKE_DATA ? 4000 : mStatsHelper.getTotalPower();
 442
 443                 final double percentOfTotal = mBatteryUtils.calculateBatteryPercent(
 444                         sipper.totalPowerMah, totalPower, hiddenPowerMah, dischargeAmount);
 445
 446                 if (((int) (percentOfTotal + .5)) < 1) {
 447                     continue;
 448                 }
 449                 if (sipper.drainType == BatterySipper.DrainType.OVERCOUNTED) {
 450                     // Don't show over-counted unless it is at least 2/3 the size of
 451                     // the largest real entry, and its percent of total is more significant
 452                     if (sipper.totalPowerMah < ((mStatsHelper.getMaxRealPower() * 2) / 3)) {
 453                         continue;
 454                     }
 455                     if (percentOfTotal < 10) {
 456                         continue;
 457                     }
 458                     if ("user".equals(Build.TYPE)) {
 459                         continue;
 460                     }
 461                 }
 462                 if (sipper.drainType == BatterySipper.DrainType.UNACCOUNTED) {
 463                     // Don't show over-counted unless it is at least 1/2 the size of
 464                     // the largest real entry, and its percent of total is more significant
 465                     if (sipper.totalPowerMah < (mStatsHelper.getMaxRealPower() / 2)) {
 466                         continue;
 467                     }
 468                     if (percentOfTotal < 5) {
 469                         continue;
 470                     }
 471                     if ("user".equals(Build.TYPE)) {
 472                         continue;
 473                     }
 474                 }
 475                 final UserHandle userHandle = new UserHandle(UserHandle.getUserId(sipper.getUid()));
 476                 final BatteryEntry entry = new BatteryEntry(getActivity(), mHandler, mUm, sipper);
 477                 final Drawable badgedIcon = mUm.getBadgedIconForUser(entry.getIcon(),
 478                         userHandle);
 479                 final CharSequence contentDescription = mUm.getBadgedLabelForUser(entry.getLabel(),
 480                         userHandle);
 481
 482                 final String key = extractKeyFromSipper(sipper);
 483                 PowerGaugePreference pref = (PowerGaugePreference) getCachedPreference(key);
 484                 if (pref == null) {
 485                     pref = new PowerGaugePreference(getPrefContext(), badgedIcon,
 486                             contentDescription, entry);
 487                     pref.setKey(key);
 488                 }
 489
 490                 final double percentOfMax = (sipper.totalPowerMah * 100)
 491                         / mStatsHelper.getMaxPower();
 492                 sipper.percent = percentOfTotal;
 493                 pref.setTitle(entry.getLabel());
 494                 pref.setOrder(i + 1);
 495                 pref.setPercent(percentOfTotal);
 496                 if (sipper.usageTimeMs == 0 && sipper.drainType == DrainType.APP) {
 497                     sipper.usageTimeMs = mBatteryUtils.getProcessTimeMs(
 498                             BatteryUtils.StatusType.FOREGROUND, sipper.uidObj, mStatsType);
 499                 }
 500                 setUsageSummary(pref, usedTime, sipper.usageTimeMs);
 501                 if ((sipper.drainType != DrainType.APP
 502                         || sipper.uidObj.getUid() == Process.ROOT_UID)
 503                         && sipper.drainType != DrainType.USER) {
 504                     pref.setTint(colorControl);
 505                 }
 506                 addedSome = true;
 507                 mAppListGroup.addPreference(pref);
 508                 if (mAppListGroup.getPreferenceCount() - getCachedCount()
 509                         > (MAX_ITEMS_TO_LIST + 1)) {
 510                     break;
 511                 }
 512             }
 513         }
 514         if (!addedSome) {
 515             addNotAvailableMessage();
 516         }
 517         removeCachedPrefs(mAppListGroup);
 518
 519         BatteryEntry.startRequestQueue();
 520     }
 521
 522     @VisibleForTesting
 523     BatterySipper findBatterySipperByType(List<BatterySipper> usageList, DrainType type) {
 524         for (int i = 0, size = usageList.size(); i < size; i++) {
 525             final BatterySipper sipper = usageList.get(i);
 526             if (sipper.drainType == type) {
 527                 return sipper;
 528             }
 529         }
 530         return null;
 531     }
 532
 533     @VisibleForTesting
 534     void updateScreenPreference() {
 535         final BatterySipper sipper = findBatterySipperByType(
 536                 mStatsHelper.getUsageList(), DrainType.SCREEN);
 537         final Context context = getContext();
 538         final long usageTimeMs = sipper != null ? sipper.usageTimeMs : 0;
 539
 540         mScreenUsagePref.setSubtitle(Utils.formatElapsedTime(context, usageTimeMs, false));
 541     }
 542
 543     @VisibleForTesting
 544     void updateLastFullChargePreference(long timeMs) {
 545         mLastFullChargePref.setSubtitle(getString(R.string.power_last_full_charge_summary,
 546                 Utils.formatElapsedTime(getContext(), timeMs, false)));
 547     }
 548
 549     @VisibleForTesting
 550     long calculateRunningTimeBasedOnStatsType() {
 551         final long elapsedRealtimeUs = SystemClock.elapsedRealtime() * 1000;
 552         // Return the battery time (millisecond) on status mStatsType
 553         return mStatsHelper.getStats().computeBatteryRealtime(elapsedRealtimeUs,
 554                 mStatsType /* STATS_SINCE_CHARGED */) / 1000;
 555     }
 556
 557     @VisibleForTesting
 558     void updateHeaderPreference(BatteryInfo info) {
 559         final Context context = getContext();
 560         if (context == null) {
 561             return;
 562         }
 563         final BatteryMeterView batteryView = (BatteryMeterView) mBatteryLayoutPref
 564                 .findViewById(R.id.battery_header_icon);
 565         final TextView timeText = (TextView) mBatteryLayoutPref.findViewById(R.id.battery_percent);
 566         final TextView summary1 = (TextView) mBatteryLayoutPref.findViewById(R.id.summary1);
 567         timeText.setText(Utils.formatPercentage(info.batteryLevel));
 568         if (info.remainingLabel == null ) {
 569             summary1.setText(info.statusLabel);
 570         } else {
 571             summary1.setText(info.remainingLabel);
 572         }
 573
 574         batteryView.setBatteryLevel(info.batteryLevel);
 575         batteryView.setCharging(!info.discharging);
 576     }
 577
 578     @VisibleForTesting
 579     double calculatePercentage(double powerUsage, double dischargeAmount) {
 580         final double totalPower = mStatsHelper.getTotalPower();
 581         return totalPower == 0 ? 0 :
 582                 ((powerUsage / totalPower) * dischargeAmount);
 583     }
 584
 585     @VisibleForTesting
 586     void setUsageSummary(Preference preference, String usedTimePrefix, long usageTimeMs) {
 587         // Only show summary when usage time is longer than one minute
 588         if (usageTimeMs >= DateUtils.MINUTE_IN_MILLIS) {
 589             preference.setSummary(String.format(usedTimePrefix,
 590                     Utils.formatElapsedTime(getContext(), usageTimeMs, false)));
 591         }
 592     }
 593
 594     @VisibleForTesting
 595     String extractKeyFromSipper(BatterySipper sipper) {
 596         if (sipper.uidObj != null) {
 597             return Integer.toString(sipper.getUid());
 598         } else if (sipper.drainType != DrainType.APP) {
 599             return sipper.drainType.toString();
 600         } else if (sipper.getPackages() != null) {
 601             return TextUtils.concat(sipper.getPackages()).toString();
 602         } else {
 603             Log.w(TAG, "Inappropriate BatterySipper without uid and package names: " + sipper);
 604             return "-1";
 605         }
 606     }
 607
 608     @VisibleForTesting
 609     void setBatteryLayoutPreference(LayoutPreference layoutPreference) {
 610         mBatteryLayoutPref = layoutPreference;
 611     }
 612
 613     @VisibleForTesting
 614     void initFeatureProvider() {
 615         final Context context = getContext();
 616         mPowerFeatureProvider = FeatureFactory.getFactory(context)
 617                 .getPowerUsageFeatureProvider(context);
 618     }
 619
 620     private static List<BatterySipper> getFakeStats() {
 621         ArrayList<BatterySipper> stats = new ArrayList<>();
 622         float use = 5;
 623         for (DrainType type : DrainType.values()) {
 624             if (type == DrainType.APP) {
 625                 continue;
 626             }
 627             stats.add(new BatterySipper(type, null, use));
 628             use += 5;
 629         }
 630         for (int i = 0; i < 100; i++) {
 631             stats.add(new BatterySipper(DrainType.APP,
 632                     new FakeUid(Process.FIRST_APPLICATION_UID + i), use));
 633         }
 634         stats.add(new BatterySipper(DrainType.APP,
 635                 new FakeUid(0), use));
 636
 637         // Simulate dex2oat process.
 638         BatterySipper sipper = new BatterySipper(DrainType.APP,
 639                 new FakeUid(UserHandle.getSharedAppGid(Process.FIRST_APPLICATION_UID)), 10.0f);
 640         sipper.packageWithHighestDrain = "dex2oat";
 641         stats.add(sipper);
 642
 643         sipper = new BatterySipper(DrainType.APP,
 644                 new FakeUid(UserHandle.getSharedAppGid(Process.FIRST_APPLICATION_UID + 1)), 10.0f);
 645         sipper.packageWithHighestDrain = "dex2oat";
 646         stats.add(sipper);
 647
 648         sipper = new BatterySipper(DrainType.APP,
 649                 new FakeUid(UserHandle.getSharedAppGid(Process.LOG_UID)), 9.0f);
 650         stats.add(sipper);
 651
 652         return stats;
 653     }
 654
 655     Handler mHandler = new Handler() {
 656
 657         @Override
 658         public void handleMessage(Message msg) {
 659             switch (msg.what) {
 660                 case BatteryEntry.MSG_UPDATE_NAME_ICON:
 661                     BatteryEntry entry = (BatteryEntry) msg.obj;
 662                     PowerGaugePreference pgp =
 663                             (PowerGaugePreference) findPreference(
 664                                     Integer.toString(entry.sipper.uidObj.getUid()));
 665                     if (pgp != null) {
 666                         final int userId = UserHandle.getUserId(entry.sipper.getUid());
 667                         final UserHandle userHandle = new UserHandle(userId);
 668                         pgp.setIcon(mUm.getBadgedIconForUser(entry.getIcon(), userHandle));
 669                         pgp.setTitle(entry.name);
 670                         if (entry.sipper.drainType == DrainType.APP) {
 671                             pgp.setContentDescription(entry.name);
 672                         }
 673                     }
 674                     break;
 675                 case BatteryEntry.MSG_REPORT_FULLY_DRAWN:
 676                     Activity activity = getActivity();
 677                     if (activity != null) {
 678                         activity.reportFullyDrawn();
 679                     }
 680                     break;
 681             }
 682             super.handleMessage(msg);
 683         }
 684     };
 685
 686     private static class SummaryProvider implements SummaryLoader.SummaryProvider {
 687         private final Context mContext;
 688         private final SummaryLoader mLoader;
 689         private final BatteryBroadcastReceiver mBatteryBroadcastReceiver;
 690
 691         private SummaryProvider(Context context, SummaryLoader loader) {
 692             mContext = context;
 693             mLoader = loader;
 694             mBatteryBroadcastReceiver = new BatteryBroadcastReceiver(mContext);
 695             mBatteryBroadcastReceiver.setBatteryChangedListener(() -> {
 696                 BatteryInfo.getBatteryInfo(mContext, new BatteryInfo.Callback() {
 697                     @Override
 698                     public void onBatteryInfoLoaded(BatteryInfo info) {
 699                         mLoader.setSummary(SummaryProvider.this, info.chargeLabelString);
 700                     }
 701                 });
 702             });
 703         }
 704
 705         @Override
 706         public void setListening(boolean listening) {
 707             if (listening) {
 708                 mBatteryBroadcastReceiver.register();
 709             } else {
 710                 mBatteryBroadcastReceiver.unRegister();
 711             }
 712         }
 713     }
 714
 715     public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
 716             new BaseSearchIndexProvider() {
 717                 @Override
 718                 public List<SearchIndexableResource> getXmlResourcesToIndex(
 719                         Context context, boolean enabled) {
 720                     final SearchIndexableResource sir = new SearchIndexableResource(context);
 721                     sir.xmlResId = R.xml.power_usage_summary;
 722                     return Arrays.asList(sir);
 723                 }
 724
 725                 @Override
 726                 public List<String> getNonIndexableKeys(Context context) {
 727                     List<String> niks = new ArrayList<>();
 728                     // Duplicates in display
 729                     niks.add(KEY_AUTO_BRIGHTNESS);
 730                     niks.add(KEY_SCREEN_TIMEOUT);
 731                     niks.add(KEY_BATTERY_SAVER_SUMMARY);
 732                     return niks;
 733                 }
 734             };
 735
 736     public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY
 737             = new SummaryLoader.SummaryProviderFactory() {
 738         @Override
 739         public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity,
 740                 SummaryLoader summaryLoader) {
 741             return new SummaryProvider(activity, summaryLoader);
 742         }
 743     };
 744 }