query Battery Remain - Android android.os

Android examples for android.os:Battery

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Description

query Battery Remain

Demo Code

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

public class Main{

    public static int queryBatteryRemain(Context context) {
        Intent bat = context.registerReceiver(null, new IntentFilter(
                Intent.ACTION_BATTERY_CHANGED));
        int level = bat.getIntExtra("level", 0);
        int scale = bat.getIntExtra("scale", 100);
        int batt = level * 100 / scale;

        return batt;
    }//from  www.j a  va 2 s. co m

}

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