The method 'isAppForeground()' of this class returns true if application is currently visible otherwise false

GetApplicationStatus.java

package com.package.application.*;//your own package 

import android.app.ActivityManager;
import android.content.Context;

import java.util.List;

/**
 * Created by harsh on 13/8/2015.
 * <p/>
 * Class to check whether the application is in foreground or not
 */
public class GetApplicationStatus {
    Context context;

    public GetApplicationStatus(Context context) {
        this.context = context;
    }

    public boolean isAppForeground() {
        ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
        List<ActivityManager.RunningAppProcessInfo> appProcesses = activityManager.getRunningAppProcesses();
        if (appProcesses == null) {
            return false;
        }
        final String packageName = context.getPackageName();
        ActivityManager.RunningAppProcessInfo appProcess = appProcesses.get(0);//generally it will not (never) return null 
        return appProcess.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND && appProcess.processName.equals(packageName);
    }
}