Java tutorial
//package com.java2s; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { public static boolean hasConnected(Context context) { ConnectivityManager connectMgr = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo mobNetInfo = connectMgr.getNetworkInfo(ConnectivityManager.TYPE_MOBILE); NetworkInfo wifiNetInfo = connectMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI); if ((mobNetInfo == null || !mobNetInfo.isConnected()) && (wifiNetInfo == null || !wifiNetInfo.isConnected())) { return false; } return true; } }