class PowerConnectionReceiver: BroadcastReceiver() {

    override fun onReceive(context: Context, intent: Intent) {
        val status = intent.getIntExtra(BatteryManager.EXTRA_STATUS, -1)

        val isCharging = ((status == BatteryManager.BATTERY_STATUS_CHARGING) ||
                status == BatteryManager.BATTERY_STATUS_FULL)
        val isUnknown = (status == BatteryManager.BATTERY_STATUS_UNKNOWN)
        val hasBeenDisconnected = (status == BatteryManager.BATTERY_STATUS_DISCHARGING)
    }
}