2 * Copyright (C) 2017 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 package com.android.settings.applications.appinfo;
19 import android.app.LoaderManager;
20 import android.content.Context;
21 import android.content.Loader;
22 import android.content.pm.PackageInfo;
23 import android.os.BatteryStats;
24 import android.os.Bundle;
25 import android.os.UserManager;
26 import android.support.annotation.VisibleForTesting;
27 import android.support.v7.preference.Preference;
28 import android.support.v7.preference.PreferenceScreen;
30 import com.android.internal.os.BatterySipper;
31 import com.android.internal.os.BatteryStatsHelper;
32 import com.android.settings.R;
33 import com.android.settings.SettingsActivity;
34 import com.android.settings.Utils;
35 import com.android.settings.applications.AppInfoDashboardFragment;
36 import com.android.settings.core.BasePreferenceController;
37 import com.android.settings.fuelgauge.AdvancedPowerUsageDetail;
38 import com.android.settings.fuelgauge.BatteryEntry;
39 import com.android.settings.fuelgauge.BatteryStatsHelperLoader;
40 import com.android.settings.fuelgauge.BatteryUtils;
41 import com.android.settingslib.core.lifecycle.Lifecycle;
42 import com.android.settingslib.core.lifecycle.LifecycleObserver;
43 import com.android.settingslib.core.lifecycle.events.OnPause;
44 import com.android.settingslib.core.lifecycle.events.OnResume;
46 import java.util.ArrayList;
47 import java.util.List;
49 public class AppBatteryPreferenceController extends BasePreferenceController
50 implements LoaderManager.LoaderCallbacks<BatteryStatsHelper>,
51 LifecycleObserver, OnResume, OnPause {
53 private static final String KEY_BATTERY = "battery";
56 BatterySipper mSipper;
58 BatteryStatsHelper mBatteryHelper;
60 BatteryUtils mBatteryUtils;
62 private Preference mPreference;
63 private final AppInfoDashboardFragment mParent;
64 private String mBatteryPercent;
65 private final String mPackageName;
67 public AppBatteryPreferenceController(Context context, AppInfoDashboardFragment parent,
68 String packageName, Lifecycle lifecycle) {
69 super(context, KEY_BATTERY);
71 mBatteryUtils = BatteryUtils.getInstance(mContext);
72 mPackageName = packageName;
73 if (lifecycle != null) {
74 lifecycle.addObserver(this);
79 public int getAvailabilityStatus() {
84 public void displayPreference(PreferenceScreen screen) {
85 super.displayPreference(screen);
86 mPreference = screen.findPreference(getPreferenceKey());
87 mPreference.setEnabled(false);
91 public boolean handlePreferenceTreeClick(Preference preference) {
92 if (!KEY_BATTERY.equals(preference.getKey())) {
95 if (isBatteryStatsAvailable()) {
96 final UserManager userManager =
97 (UserManager) mContext.getSystemService(Context.USER_SERVICE);
98 final BatteryEntry entry = new BatteryEntry(mContext, null, userManager, mSipper);
99 entry.defaultPackageName = mPackageName;
100 AdvancedPowerUsageDetail.startBatteryDetailPage(
101 (SettingsActivity) mParent.getActivity(), mParent, mBatteryHelper,
102 BatteryStats.STATS_SINCE_CHARGED, entry, mBatteryPercent,
103 null /* mAnomalies */);
105 AdvancedPowerUsageDetail.startBatteryDetailPage(
106 (SettingsActivity) mParent.getActivity(), mParent, mPackageName);
112 public void onResume() {
113 mParent.getLoaderManager().restartLoader(
114 mParent.LOADER_BATTERY, Bundle.EMPTY, this);
118 public void onPause() {
119 mParent.getLoaderManager().destroyLoader(mParent.LOADER_BATTERY);
123 public Loader<BatteryStatsHelper> onCreateLoader(int id, Bundle args) {
124 return new BatteryStatsHelperLoader(mContext);
128 public void onLoadFinished(Loader<BatteryStatsHelper> loader,
129 BatteryStatsHelper batteryHelper) {
130 mBatteryHelper = batteryHelper;
131 final PackageInfo packageInfo = mParent.getPackageInfo();
132 if (packageInfo != null) {
133 mSipper = findTargetSipper(batteryHelper, packageInfo.applicationInfo.uid);
134 if (mParent.getActivity() != null) {
141 public void onLoaderReset(Loader<BatteryStatsHelper> loader) {
145 void updateBattery() {
146 mPreference.setEnabled(true);
147 if (isBatteryStatsAvailable()) {
148 final int dischargeAmount = mBatteryHelper.getStats().getDischargeAmount(
149 BatteryStats.STATS_SINCE_CHARGED);
151 final List<BatterySipper> usageList = new ArrayList<>(mBatteryHelper.getUsageList());
152 final double hiddenAmount = mBatteryUtils.removeHiddenBatterySippers(usageList);
153 final int percentOfMax = (int) mBatteryUtils.calculateBatteryPercent(
154 mSipper.totalPowerMah, mBatteryHelper.getTotalPower(), hiddenAmount,
156 mBatteryPercent = Utils.formatPercentage(percentOfMax);
157 mPreference.setSummary(mContext.getString(R.string.battery_summary, mBatteryPercent));
159 mPreference.setSummary(mContext.getString(R.string.no_battery_summary));
164 boolean isBatteryStatsAvailable() {
165 return mBatteryHelper != null && mSipper != null;
169 BatterySipper findTargetSipper(BatteryStatsHelper batteryHelper, int uid) {
170 final List<BatterySipper> usageList = batteryHelper.getUsageList();
171 for (int i = 0, size = usageList.size(); i < size; i++) {
172 final BatterySipper sipper = usageList.get(i);
173 if (sipper.getUid() == uid) {