android开发 电池与电量

前言

　　此篇博客讲解电池与电量的开发

代码部分

电量监听

    private fun initBatteryReceiver() {
        mBatteryReceiver = object : BroadcastReceiver() {
            override fun onReceive(context: Context, intent: Intent) {
                //电压
                val voltage = intent.getIntExtra(BatteryManager.EXTRA_VOLTAGE, 0);
                mBinding.voltage.text = "电压：" + voltage / 1000 + "." + voltage % 1000 + "V"
                //温度
                val temperature = intent.getIntExtra(BatteryManager.EXTRA_TEMPERATURE, 0);
                mBinding.temperature.text = "温度：" + temperature / 10 + "." + temperature % 10 + "℃"
                if (temperature >= 300) {
                    mBinding.temperature.setTextColor(Color.RED)
                } else {
                    mBinding.temperature.setTextColor(Color.BLUE)
                }
                //电量
                val level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0);
                val scale = intent.getIntExtra(BatteryManager.EXTRA_SCALE, 0);
                val levelPercent = ((level / scale) * 100)
                mBinding.electricity.setText("电量：" + levelPercent + "%")
                if (level <= 10) {
                    mBinding.electricity.setTextColor(Color.RED);
                } else {
                    mBinding.electricity.setTextColor(Color.BLUE);
                }
                //充电状态
                val status = intent.getIntExtra(
                    BatteryManager.EXTRA_STATUS,
                    BatteryManager.BATTERY_STATUS_UNKNOWN
                )
                val strStatus = when (status) {
                    BatteryManager.BATTERY_STATUS_CHARGING -> "充电中"
                    BatteryManager.BATTERY_STATUS_DISCHARGING -> "放电中"
                    BatteryManager.BATTERY_STATUS_NOT_CHARGING -> "未充电"
                    BatteryManager.BATTERY_STATUS_FULL -> "充电完成"
                    else -> "未知状态"
                }
                mBinding.status.text = "状态：" + strStatus

                val health = intent.getIntExtra(
                    BatteryManager.EXTRA_HEALTH,
                    BatteryManager.BATTERY_HEALTH_UNKNOWN
                )
                mBinding.healthStatus.text = when (health) {
                    BatteryManager.BATTERY_HEALTH_GOOD -> "健康状况：好"
                    BatteryManager.BATTERY_HEALTH_OVERHEAT -> "健康状况：过热"
                    BatteryManager.BATTERY_HEALTH_DEAD -> "健康状况：良好"
                    BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE -> "健康状况：电压过高"
                    BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE -> "健康状况：未知"
                    BatteryManager.BATTERY_HEALTH_COLD -> "健康状况：过冷"
                    else -> "健康状况：未知"

                }

                val technology = intent.getStringExtra(BatteryManager.EXTRA_TECHNOLOGY);
                mBinding.batteryTechnology.text = "电池技术：" + technology;

            }
        }
        registerReceiver(this.mBatteryReceiver, IntentFilter(Intent.ACTION_BATTERY_CHANGED))
    }

adb命令部分

adb命令:adb shell dumpsys battery
得到信息如下：

  AC powered: false
  USB powered: true
  Wireless powered: false
  status: 1            #电池状态：2：充电状态 ，其他数字为非充电状态           
  health: 2
  present: true
  level: 55            #电量: 百分比
  scale: 100
  voltage: 3977
  current now: -335232
  temperature: 335      #电池状态
  technology: Li-poly

改变手机电池状态

手机连接到电脑，默认为充电状态

切换手机电池为非充电状态： 

adb shell dumpsys battery set status 1

改变手机电量

让手机电量显示百分百： 

adb shell dumpsys battery set level 100

让手机电量显示1： 

adb shell dumpsys battery set level 1

获取电量消耗信息

获取整个设备的电量消耗信息：

adb shell dumpsys batterystats  | more

获取某个apk的电量消耗信息：

adb shell dumpsys batterystats  com.Package.name | more

由于输出信息太多，可使用命令more 或者 less 分篇查看， 输出信息如下(由于篇幅，只粘贴部分）：

Battery History:
    -d04h22m36s181ms 044 20080000 status=charging health=good plug=usb temp=335 volt=3809 +plugged +sensor
    -d04h21m27s713ms 044 40a0000 +wifi +wifi_running +wake_lock
    -d04h21m23s278ms 044 c0a0100 +phone_scanning phone_state=out
    -d04h21m19s102ms 044 c0a0100 -wake_lock
    -d04h21m05s005ms 044 c0a0100 +wake_lock
    -d04h20m51s486ms 044 d0a0100 +wifi_scan
    -d04h20m49s211ms 044 c0a0100 -wifi_scan
    -d04h20m41s478ms 044 c0a0100
    -d04h20m31s476ms 044 d0a0100 +wifi_scan
    -d04h20m29s174ms 044 c0a0100 -wifi_scan
    -d04h20m24s353ms 044 c0a0100 -wake_lock
    -d04h20m21s474ms 044 d0a0100 +wifi_scan +wake_lock
    -d04h20m21s125ms 044 d0a0100
    -d04h20m16s847ms 044 c0a0100 -wifi_scan -wake_lock

 

 

第三方项目

电量消耗信息

关于电量，主要是通过battery-historian工具来获取。

https://github.com/google/battery-historian

 

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