get Charge Percentage - Android android.os

Android examples for android.os:BatteryManager

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  4. BatteryManager

Description

get Charge Percentage

Demo Code

import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.BatteryManager;

public class Main {

  public static float getChargePct(Context context) {
    IntentFilter intentFilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
    Intent batteryStatus = context.registerReceiver(null, intentFilter);
    return getChargePct(batteryStatus);
  }//from   w w  w.java 2s.c  o  m

  public static float getChargePct(Intent batteryStatus) {
    int level = batteryStatus.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
    int scale = batteryStatus.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
    return level / (float) scale;
  }

}

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