BatteryStats计算电量

idlePower = (idleTimeMs * cpuIdlePower) / (60* 60* 1000)

addBluetoothUsage:蓝牙硬件耗电量以及所有App使用wifi的功耗总和DrainType.BLUETOOTH

mUserSippers

addScreenUsage:屏幕耗电量（各个级别背光的耗电总和）DrainType.SCREEN

bluetoothPowerMah = ((idleTimeMs * mIdleMa) + (rxTimeMs * mRxMa) + (txTimeMs * mTxMa)) / (1000 * 60 * 60);

addIdleUsage:Cpu处于Suspend和idle状态的总耗电量DrainType.IDLE

mUsageList

Process.WIFI_UID

uidStats

mBluetoothSippers

addUserUsage:各个用户的耗电量DrainType.USER

addWiFiUsage:wifi的硬件功耗以及所有App使用wifi的功耗总和DrainType.WIFI

refreshStats:processAppUsage()mMobilemsppList.add(bs);processMiscUsage()

user_power = user_1_power + user_2_power + … +　user_n_power; (n为所有的user的总数)

processMiscUsage:计算硬件耗电addUserUsage();addPhoneUsage();addScreenUsage();addWiFiUsage();addBluetoothUsage();addMemoryUsage();addIdleUsage();addRadioUsage();

screen_power = screenOnTimeMs * screenOnPower + backlight_powerbacklight_power = 0.1 * dark_brightness_time * screenFullPower + 0.3 * dim_brightness_time * screenFullPower + 0.5 * medium_brightness_time * screenFullPower + 0.7 * light_brightness_time + 0.9 * bright_brightness_time * screenFullPower;

wifiPowerMah = powerDrainMah - mTotalAppPowerDrain；powerDrainMah = ((idleTimeMs * mIdleCurrentMa) + (txTimeMs * mTxCurrentMa) +(rxTimeMs * mRxCurrentMa)；

addPhoneUsage:通话信号处于活跃时的耗电和DrainType.PHONE

mWifiSippers

mem_powers = (mAatRail * timeMs) / (60* 1000)

addRadioUsage:Radio Cell信号(非通话)处于各个级别上的总耗电量DrainType.CELL

app.getUid() == ?

phone_powers = (phoneOnTimeMs * phoneOnPower) / (60* 60* 1000)

循环mUidStats 的List

processAppUsage:计算软件耗电uidStats = mStats.getUidStats()

mobileRadioPowerMah = strengthOnPower + scanningPower + remainingActivePowerstrengthOnPower = none_strength_Ms * none_strength_Power + poor_strength_Ms * poor_strength_Power + moderate_strength_Ms * moderate_strength_Power + good_strength_Ms * good_strength_Power + great_strength_Ms * great_strength_Power；scanningPower = scanningTimeMs * mPowerScan；remainingActivePower = （radioActiveTimeMs - mTotalAppMobileActiveMs）* mPowerRadioOn；

mMobilemsppList

addMemoryUsage:DDR内存硬件的耗电量DrainType.MEMORY

Process.BLUETOOTH_UID