Android BatteryManager类

1. BatteryManager类

获取电量信息需要注册一个BroadcastReceiver。

IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
registerReceiver(mReceiver, filter);

在onReceive(Context context, Intent intent)方法中，通过intent.getExtra()获取电量信息。

2. 主要参数

• BatteryManager.EXTRA_STATUS，电池状态

  BatteryManager.BATTERY_STATUS_UNKNOWN
  BatteryManager.BATTERY_STATUS_CHARGING
  BatteryManager.BATTERY_STATUS_DISCHARGING
  BatteryManager.BATTERY_STATUS_NOT_CHARGING
  BatteryManager.BATTERY_STATUS_FULL
  

• BatteryManager.EXTRA_HEALTH，电池健康状态

  BatteryManager.BATTERY_HEALTH_UNKNOWN
  BatteryManager.BATTERY_HEALTH_GOOD
  BatteryManager.BATTERY_HEALTH_OVERHEAT
  BatteryManager.BATTERY_HEALTH_DEAD
  BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE
  BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE
  BatteryManager.BATTERY_HEALTH_COLD
  

• BatteryManager.EXTRA_PRESENT，电池是否存在

• BatteryManager.EXTRA_LEVEL，电池电量

• BatteryManager.EXTRA_SCALE，电池总电量

• BatteryManager.EXTRA_PLUGGED，充电方式

  BatteryManager.BATTERY_PLUGGED_AC
  BatteryManager.BATTERY_PLUGGED_USB
  BatteryManager.BATTERY_PLUGGED_WIRELESS
  

• BatteryManager.EXTRA_VOLTAGE，电池电压

• BatteryManager.EXTRA_TEMPERATURE，电池温度

• BatteryManager.EXTRA_TECHNOLOGY，电池技术