Java tutorial
//package com.java2s; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { public static boolean isNetworkAvailable(Context context) { try { ConnectivityManager connMgr = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); if (connMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState() == NetworkInfo.State.CONNECTED || connMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI) .getState() == NetworkInfo.State.CONNECTING) { return true; } else if (connMgr.getNetworkInfo(ConnectivityManager.TYPE_MOBILE) .getState() == NetworkInfo.State.CONNECTED || connMgr.getNetworkInfo(ConnectivityManager.TYPE_MOBILE) .getState() == NetworkInfo.State.CONNECTING) { return true; } else return false; } catch (Exception e) { return false; } } }