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 float level(Context context) {
        Intent batteryIntent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
        int level = batteryIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
        int scale = batteryIntent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);

        // Error checking that probably isn't needed but I added just in case.
        if (level == -1 || scale == -1)
            return 50.0f;

        return ((float) level / (float) scale) * 100.0f;
    }
}