Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

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

public class Main {
    public static boolean isBatteryLow(Context context) {
        return getBatteryLevel(context) < 0.15; // 15% matches system low battery level
    }

    public static float getBatteryLevel(Context context) {
        Intent batteryStatus = getBatteryStatus(context);
        if (batteryStatus != null) {
            int level = batteryStatus.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
            int scale = batteryStatus.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
            return (level / (float) scale);
        } else {
            return 0.5f;
        }
    }

    private static Intent getBatteryStatus(Context context) {
        IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
        return context.registerReceiver(null, filter);
    }
}