最近做一個項目要頻繁的進行網絡操作，但有時需要判定網絡狀態和當前網絡的類型。看到好多前輩都是使用

reachability來實現的。我也試了試效果還不錯，封裝成了工具類方便大家使用。

使用說明：

    1.添加framework： 

    將SystemConfiguration.framework添加進工程。 

    2.下載https://developer.apple.com/library/ios/samplecode/Reachability/Reachability.zip

    復制里面的Reachability.h和Reachability.m到項目中

    3.添加CloNetworkUtil.h和CloNetworkUitl.m到你的項目中

     在使用的地方導入CloNetworkUtil.h頭文件即可

CloNetworkUtil.h代碼：

//

//  CloNetworkUtil.h

//  NetWorkTest

//

//  Created by Cloay on 12-6-19.

//  Copyright (c) 2012年 MyCompanyName. All rights reserved.

/* 
    1.添加framework：

    將SystemConfiguration.framework 添加進工程。

    2.下載 https://developer.apple.com/library/ios/samplecode/Reachability/Reachability.zip 
    復制里面的Reachability.h和Reachability.m到項目中 /

import <FOUNDATION foundation.h="">
import "Reachability.h"
@interface CloNetworkUtil : NSObject{

}

(Reachability *)initReachability;  
(BOOL)getNetWorkStatus;  
(NSString *)getNetWorkType;

@end </foundation></strong></pre>實現如下：
//

  //  CloNetworkUtil.m

  //  NetWorkTest

  //

  //  Created by Cloay on 12-6-19.

  //  Copyright (c) 2012年 MyCompanyName. All rights reserved.

  //

#import "CloNetworkUtil.h"
@implementation CloNetworkUtil
//初始化reachability

(Reachability )initReachability{

  Reachability reachability = [Reachability reachabilityWithHostName:@"www.baidu.com"];

  return reachability;

}
//判斷網絡是否可用

(BOOL)getNetWorkStatus{

  if ([[self initReachability] currentReachabilityStatus] == NotReachable) {

  return NO;  

}else {

  return YES;  

}

}
/* 
獲取網絡類型 
return /

(NSString )getNetWorkType

{

  NSString netWorkType;

  Reachability *reachability = [self initReachability];

  switch ([reachability currentReachabilityStatus]) {

  case ReachableViaWiFi:   //Wifi網絡  
      netWorkType = @"wifi";  
      break;  
  case ReachableViaWWAN:  //無線廣域網  
      netWorkType = @"wwan";   
      break;  
  default:  
      netWorkType = @"no";  
      break;  

}

  return netWorkType;

}
@end  </pre></span></strong> 

很簡單就不在說明了！效果圖：
 



轉自：http://blog.csdn.net/shang_515/article/details/7697149