| /* |
| * 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.fuelgauge.batterytip.detectors; |
| |
| import android.content.Context; |
| import android.os.PowerManager; |
| |
| import com.android.settings.fuelgauge.BatteryInfo; |
| import com.android.settings.fuelgauge.batterytip.BatteryTipPolicy; |
| import com.android.settings.fuelgauge.batterytip.tips.BatteryTip; |
| import com.android.settings.fuelgauge.batterytip.tips.LowBatteryTip; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Detect whether the battery is too low |
| */ |
| public class LowBatteryDetector implements BatteryTipDetector { |
| private BatteryInfo mBatteryInfo; |
| private BatteryTipPolicy mPolicy; |
| private PowerManager mPowerManager; |
| private int mWarningLevel; |
| |
| public LowBatteryDetector(Context context, BatteryTipPolicy policy, BatteryInfo batteryInfo) { |
| mPolicy = policy; |
| mBatteryInfo = batteryInfo; |
| mPowerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); |
| mWarningLevel = context.getResources().getInteger( |
| com.android.internal.R.integer.config_lowBatteryWarningLevel); |
| } |
| |
| @Override |
| public BatteryTip detect() { |
| final boolean powerSaveModeOn = mPowerManager.isPowerSaveMode(); |
| final boolean lowBattery = mBatteryInfo.batteryLevel <= mWarningLevel |
| || (mBatteryInfo.discharging && mBatteryInfo.remainingTimeUs != 0 |
| && mBatteryInfo.remainingTimeUs < TimeUnit.HOURS.toMicros(mPolicy.lowBatteryHour)); |
| |
| int state = BatteryTip.StateType.INVISIBLE; |
| if (mPolicy.lowBatteryEnabled) { |
| if (powerSaveModeOn) { |
| // Show it is handled if battery saver is on |
| state = BatteryTip.StateType.HANDLED; |
| } else if (mPolicy.testLowBatteryTip || (mBatteryInfo.discharging && lowBattery)) { |
| // Show it is new if in test or in discharging low battery state |
| state = BatteryTip.StateType.NEW; |
| } |
| } |
| |
| return new LowBatteryTip( |
| state, powerSaveModeOn, mBatteryInfo.suggestionLabel); |
| } |
| } |