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