Java tutorial
/* * The MIT License (MIT) * * Copyright 2013 Clover Studio Ltd. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package com.uf.togathor.management; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.support.v4.content.LocalBroadcastManager; /** * ConnectionChangeReceiver * * Sends broadcast on connection change. */ public class ConnectionChangeReceiver extends BroadcastReceiver { /* Connection constants */ public static final String NO_INTERNET_CONNECTION = "no_internet_connection"; public static final String HAS_INTERNET_CONNECTION = "has_internet_connection"; public static final String INTERNET_CONNECTION_CHANGE = "internet_connection_change"; private Intent mConnectionChangeBroadcast = new Intent(INTERNET_CONNECTION_CHANGE); @Override public void onReceive(Context context, Intent intent) { final ConnectivityManager connectivityManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo(); NetworkInfo mobNetInfo = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE); boolean hasInternetConnection = activeNetInfo != null; if (hasInternetConnection) { mConnectionChangeBroadcast.putExtra(HAS_INTERNET_CONNECTION, true); } else { mConnectionChangeBroadcast.putExtra(HAS_INTERNET_CONNECTION, false); } LocalBroadcastManager.getInstance(context).sendBroadcast(mConnectionChangeBroadcast); } }