添加 system32.Management 引用 private bool ListenNET()        {            ManagementObjectSearcher s = new ManagementObjectSearcher(@"SELECT DeviceID FROM Win32_NetworkAdapter WHERE NetConnectionStatus=2 AND PNPDeviceID LIKE 'PCI%'");            re…

类似于一个网络状况的探针. [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(reachabilityChanged:) name: kReachabilityChangedNotification object: nil]; hostReach = [[Reachability reachabilityWithHostName: @"hubj.cnblogs.com"] retain…

//判断网络是否连接 public static Boolean isNetworkEnabled(Context context){ int status=-1  //设置默认连接的状态为-1 ConnectivityManager connectivityManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE);NetworkInfo networkInfo = connec…

<!-- 配置文件判断网络是否连接 --> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> public static boolean isNetworkAvailable(Context context) { ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Cont…

类似于一个网络状况的探针. [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(reachabilityChanged:) name: kReachabilityChangedNotification object: nil];        hostReach = [[Reachability reachabilityWithHostName: @"hubj.cnblogs.com"]…

方法1:InternetGetConnectedState         [System.Runtime.InteropServices.DllImport("wininet")]         private extern static bool InternetGetConnectedState(out int connectionDescription, int reservedValue);                 private void button1_Clic…

package com.liucanwen.baidulocation.util; import android.app.Activity; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.widget.Toast; public class NetworkStatus { public boolean ne…

在android的开发中,尤其是与访问网络有关的开发,都要判断一下手机是否连接上了网络,下面是一个判断是否连接网络的嗲吗片段: package cn.com.karl.util; import com.kubu.main.R; import android.app.Activity; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; imp…

/** * 判断网络是否连通 * @param context * @return */ public static boolean isNetworkConnected(Context context){ ConnectivityManager cm = (ConnectivityManager) context.getSystemService(context.CONNECTIVITY_SERVICE); NetworkInfo info = cm.getActiveNetworkInfo(…

先来看一下整个方法 - (BOOL)isConnectionAvailable { //创建零地址,0.0.0.0的地址表示查询本机的网络连接状态 struct sockaddr_in zeroAddress; bzero(&zeroAddress, sizeof(zeroAddress)); zeroAddress.sin_len = sizeof(zeroAddress); zeroAddress.sin_family = AF_INET; // Recover reachability f…