1 /* 2 * Copyright (C) 2017 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.applications.appinfo; 18 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; 29 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.core.BasePreferenceController; 36 import com.android.settings.fuelgauge.AdvancedPowerUsageDetail; 37 import com.android.settings.fuelgauge.BatteryEntry; 38 import com.android.settings.fuelgauge.BatteryStatsHelperLoader; 39 import com.android.settings.fuelgauge.BatteryUtils; 40 import com.android.settingslib.core.lifecycle.Lifecycle; 41 import com.android.settingslib.core.lifecycle.LifecycleObserver; 42 import com.android.settingslib.core.lifecycle.events.OnPause; 43 import com.android.settingslib.core.lifecycle.events.OnResume; 44 45 import java.util.ArrayList; 46 import java.util.List; 47 48 public class AppBatteryPreferenceController extends BasePreferenceController 49 implements LoaderManager.LoaderCallbacks<BatteryStatsHelper>, 50 LifecycleObserver, OnResume, OnPause { 51 52 private static final String KEY_BATTERY = "battery"; 53 54 @VisibleForTesting 55 BatterySipper mSipper; 56 @VisibleForTesting 57 BatteryStatsHelper mBatteryHelper; 58 @VisibleForTesting 59 BatteryUtils mBatteryUtils; 60 61 private Preference mPreference; 62 private final AppInfoDashboardFragment mParent; 63 private String mBatteryPercent; 64 private final String mPackageName; 65 AppBatteryPreferenceController(Context context, AppInfoDashboardFragment parent, String packageName, Lifecycle lifecycle)66 public AppBatteryPreferenceController(Context context, AppInfoDashboardFragment parent, 67 String packageName, Lifecycle lifecycle) { 68 super(context, KEY_BATTERY); 69 mParent = parent; 70 mBatteryUtils = BatteryUtils.getInstance(mContext); 71 mPackageName = packageName; 72 if (lifecycle != null) { 73 lifecycle.addObserver(this); 74 } 75 } 76 77 @Override getAvailabilityStatus()78 public int getAvailabilityStatus() { 79 return mContext.getResources().getBoolean(R.bool.config_show_app_info_settings_battery) 80 ? AVAILABLE 81 : CONDITIONALLY_UNAVAILABLE; 82 } 83 84 @Override displayPreference(PreferenceScreen screen)85 public void displayPreference(PreferenceScreen screen) { 86 super.displayPreference(screen); 87 mPreference = screen.findPreference(getPreferenceKey()); 88 mPreference.setEnabled(false); 89 } 90 91 @Override handlePreferenceTreeClick(Preference preference)92 public boolean handlePreferenceTreeClick(Preference preference) { 93 if (!KEY_BATTERY.equals(preference.getKey())) { 94 return false; 95 } 96 if (isBatteryStatsAvailable()) { 97 final UserManager userManager = 98 (UserManager) mContext.getSystemService(Context.USER_SERVICE); 99 final BatteryEntry entry = new BatteryEntry(mContext, null, userManager, mSipper); 100 entry.defaultPackageName = mPackageName; 101 AdvancedPowerUsageDetail.startBatteryDetailPage( 102 (SettingsActivity) mParent.getActivity(), mParent, mBatteryHelper, 103 BatteryStats.STATS_SINCE_CHARGED, entry, mBatteryPercent, 104 null /* mAnomalies */); 105 } else { 106 AdvancedPowerUsageDetail.startBatteryDetailPage( 107 (SettingsActivity) mParent.getActivity(), mParent, mPackageName); 108 } 109 return true; 110 } 111 112 @Override onResume()113 public void onResume() { 114 mParent.getLoaderManager().restartLoader( 115 mParent.LOADER_BATTERY, Bundle.EMPTY, this); 116 } 117 118 @Override onPause()119 public void onPause() { 120 mParent.getLoaderManager().destroyLoader(mParent.LOADER_BATTERY); 121 } 122 123 @Override onCreateLoader(int id, Bundle args)124 public Loader<BatteryStatsHelper> onCreateLoader(int id, Bundle args) { 125 return new BatteryStatsHelperLoader(mContext); 126 } 127 128 @Override onLoadFinished(Loader<BatteryStatsHelper> loader, BatteryStatsHelper batteryHelper)129 public void onLoadFinished(Loader<BatteryStatsHelper> loader, 130 BatteryStatsHelper batteryHelper) { 131 mBatteryHelper = batteryHelper; 132 final PackageInfo packageInfo = mParent.getPackageInfo(); 133 if (packageInfo != null) { 134 mSipper = findTargetSipper(batteryHelper, packageInfo.applicationInfo.uid); 135 if (mParent.getActivity() != null) { 136 updateBattery(); 137 } 138 } 139 } 140 141 @Override onLoaderReset(Loader<BatteryStatsHelper> loader)142 public void onLoaderReset(Loader<BatteryStatsHelper> loader) { 143 } 144 145 @VisibleForTesting updateBattery()146 void updateBattery() { 147 mPreference.setEnabled(true); 148 if (isBatteryStatsAvailable()) { 149 final int dischargeAmount = mBatteryHelper.getStats().getDischargeAmount( 150 BatteryStats.STATS_SINCE_CHARGED); 151 152 final List<BatterySipper> usageList = new ArrayList<>(mBatteryHelper.getUsageList()); 153 final double hiddenAmount = mBatteryUtils.removeHiddenBatterySippers(usageList); 154 final int percentOfMax = (int) mBatteryUtils.calculateBatteryPercent( 155 mSipper.totalPowerMah, mBatteryHelper.getTotalPower(), hiddenAmount, 156 dischargeAmount); 157 mBatteryPercent = Utils.formatPercentage(percentOfMax); 158 mPreference.setSummary(mContext.getString(R.string.battery_summary, mBatteryPercent)); 159 } else { 160 mPreference.setSummary(mContext.getString(R.string.no_battery_summary)); 161 } 162 } 163 164 @VisibleForTesting isBatteryStatsAvailable()165 boolean isBatteryStatsAvailable() { 166 return mBatteryHelper != null && mSipper != null; 167 } 168 169 @VisibleForTesting findTargetSipper(BatteryStatsHelper batteryHelper, int uid)170 BatterySipper findTargetSipper(BatteryStatsHelper batteryHelper, int uid) { 171 final List<BatterySipper> usageList = batteryHelper.getUsageList(); 172 for (int i = 0, size = usageList.size(); i < size; i++) { 173 final BatterySipper sipper = usageList.get(i); 174 if (sipper.getUid() == uid) { 175 return sipper; 176 } 177 } 178 return null; 179 } 180 181 } 182