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/*
* 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.settings.applications.appinfo;
import android.app.LoaderManager;
import android.content.Context;
import android.content.Loader;
import android.content.pm.PackageInfo;
import android.os.BatteryStats;
import android.os.Bundle;
import android.os.UserManager;
import androidx.annotation.VisibleForTesting;
import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;
import com.android.internal.os.BatterySipper;
import com.android.internal.os.BatteryStatsHelper;
import com.android.settings.R;
import com.android.settings.SettingsActivity;
import com.android.settings.Utils;
import com.android.settings.core.BasePreferenceController;
import com.android.settings.fuelgauge.AdvancedPowerUsageDetail;
import com.android.settings.fuelgauge.BatteryEntry;
import com.android.settings.fuelgauge.BatteryStatsHelperLoader;
import com.android.settings.fuelgauge.BatteryUtils;
import com.android.settingslib.core.lifecycle.Lifecycle;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnPause;
import com.android.settingslib.core.lifecycle.events.OnResume;
import java.util.ArrayList;
import java.util.List;
public class AppBatteryPreferenceController extends BasePreferenceController
implements LoaderManager.LoaderCallbacks<BatteryStatsHelper>,
LifecycleObserver, OnResume, OnPause {
private static final String KEY_BATTERY = "battery";
@VisibleForTesting
BatterySipper mSipper;
@VisibleForTesting
BatteryStatsHelper mBatteryHelper;
@VisibleForTesting
BatteryUtils mBatteryUtils;
private Preference mPreference;
private final AppInfoDashboardFragment mParent;
private String mBatteryPercent;
private final String mPackageName;
public AppBatteryPreferenceController(Context context, AppInfoDashboardFragment parent,
String packageName, Lifecycle lifecycle) {
super(context, KEY_BATTERY);
mParent = parent;
mBatteryUtils = BatteryUtils.getInstance(mContext);
mPackageName = packageName;
if (lifecycle != null) {
lifecycle.addObserver(this);
}
}
@Override
public int getAvailabilityStatus() {
return mContext.getResources().getBoolean(R.bool.config_show_app_info_settings_battery)
? AVAILABLE
: DISABLED_UNSUPPORTED;
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
mPreference = screen.findPreference(getPreferenceKey());
mPreference.setEnabled(false);
}
@Override
public boolean handlePreferenceTreeClick(Preference preference) {
if (!KEY_BATTERY.equals(preference.getKey())) {
return false;
}
if (isBatteryStatsAvailable()) {
final UserManager userManager =
(UserManager) mContext.getSystemService(Context.USER_SERVICE);
final BatteryEntry entry = new BatteryEntry(mContext, null, userManager, mSipper);
entry.defaultPackageName = mPackageName;
AdvancedPowerUsageDetail.startBatteryDetailPage(
(SettingsActivity) mParent.getActivity(), mParent, mBatteryHelper,
BatteryStats.STATS_SINCE_CHARGED, entry, mBatteryPercent,
null /* mAnomalies */);
} else {
AdvancedPowerUsageDetail.startBatteryDetailPage(
(SettingsActivity) mParent.getActivity(), mParent, mPackageName);
}
return true;
}
@Override
public void onResume() {
mParent.getLoaderManager().restartLoader(
mParent.LOADER_BATTERY, Bundle.EMPTY, this);
}
@Override
public void onPause() {
mParent.getLoaderManager().destroyLoader(mParent.LOADER_BATTERY);
}
@Override
public Loader<BatteryStatsHelper> onCreateLoader(int id, Bundle args) {
return new BatteryStatsHelperLoader(mContext);
}
@Override
public void onLoadFinished(Loader<BatteryStatsHelper> loader,
BatteryStatsHelper batteryHelper) {
mBatteryHelper = batteryHelper;
final PackageInfo packageInfo = mParent.getPackageInfo();
if (packageInfo != null) {
mSipper = findTargetSipper(batteryHelper, packageInfo.applicationInfo.uid);
if (mParent.getActivity() != null) {
updateBattery();
}
}
}
@Override
public void onLoaderReset(Loader<BatteryStatsHelper> loader) {
}
@VisibleForTesting
void updateBattery() {
mPreference.setEnabled(true);
if (isBatteryStatsAvailable()) {
final int dischargeAmount = mBatteryHelper.getStats().getDischargeAmount(
BatteryStats.STATS_SINCE_CHARGED);
final List<BatterySipper> usageList = new ArrayList<>(mBatteryHelper.getUsageList());
final double hiddenAmount = mBatteryUtils.removeHiddenBatterySippers(usageList);
final int percentOfMax = (int) mBatteryUtils.calculateBatteryPercent(
mSipper.totalPowerMah, mBatteryHelper.getTotalPower(), hiddenAmount,
dischargeAmount);
mBatteryPercent = Utils.formatPercentage(percentOfMax);
mPreference.setSummary(mContext.getString(R.string.battery_summary, mBatteryPercent));
} else {
mPreference.setSummary(mContext.getString(R.string.no_battery_summary));
}
}
@VisibleForTesting
boolean isBatteryStatsAvailable() {
return mBatteryHelper != null && mSipper != null;
}
@VisibleForTesting
BatterySipper findTargetSipper(BatteryStatsHelper batteryHelper, int uid) {
final List<BatterySipper> usageList = batteryHelper.getUsageList();
for (int i = 0, size = usageList.size(); i < size; i++) {
final BatterySipper sipper = usageList.get(i);
if (sipper.getUid() == uid) {
return sipper;
}
}
return null;
}
}
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