#import "AppDelegate.h"

#import "ViewController.h"

#import "Reachability.h"

@interface AppDelegate (){

}

@property (nonatomic,retain)Reachability *res;

@end

@implementation AppDelegate

- (void)dealloc

{

    [_window release];

    [_res release];

    [_viewController release];

    [super dealloc];

}

-(void)change:(NSNotificationCenter *)notify{//当网络发生变化的时候，都会触发这个事件

    NSLog(@"%@",notify);

}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

//添加网络变化的通知

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(change:) name:kReachabilityChangedNotification object:nil];

    self.res=[Reachability reachabilityWithHostName:@"http://www.baidu.com"];

    [self.res startNotifier];//开始监听网络请求的变化

    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];

    // Override point for customization after application launch.

    self.viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];

    self.window.rootViewController = self.viewController;

    [self.window makeKeyAndVisible];

    return YES;

}

、-(void)viewWillAppear:(BOOL)animated{

    [super viewWillAppear:animated];

    if([Reachability reachabilityForLocalWiFi].currentReachabilityStatus==NotReachable&&[[Reachability reachabilityForInternetConnection] currentReachabilityStatus]==NotReachable){

        NSLog(@" not  work");

    }

}

-(void)PdNetwork{

    Reachability *r=[Reachability reachabilityWithHostName:@"http://www.baidu.com"];

    switch ([r currentReachabilityStatus]) {

        case NotReachable:

            NSLog(@"not work");

            break;

        case ReachableViaWiFi:

            NSLog(@"wifi");

            break;

        case ReachableViaWWAN:{

            NSLog(@"wan");

        }

            break;

        default:

            break;

    }

}