Java tutorial
//package com.java2s; import android.content.Context; import android.net.ConnectivityManager; public class Main { public static boolean isNetworkConnected(Context mContext) { if (mContext != null) { ConnectivityManager manager = (ConnectivityManager) mContext .getSystemService(Context.CONNECTIVITY_SERVICE); if (manager.getActiveNetworkInfo() != null) { return (manager.getActiveNetworkInfo().isAvailable() && manager.getActiveNetworkInfo().isConnected()); } } return false; } }