Java tutorial
//package com.java2s; //License from project: Open Source License import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class Main { public static final boolean hasConnectivity(final Context context, final int... networkTypes) { final ConnectivityManager connectivity = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); if (networkTypes.length == 0) for (final NetworkInfo info : connectivity.getAllNetworkInfo()) if (info.isAvailable() || info.isConnected() || info.isConnectedOrConnecting()) return true; for (final int networkType : networkTypes) if (ConnectivityManager.isNetworkTypeValid(networkType)) { final NetworkInfo info = connectivity.getNetworkInfo(networkType); if (info.isAvailable() || info.isConnected() || info.isConnectedOrConnecting()) return true; } return false; } }