iOS中判断网络是否联网
2013-07-06 21:10 甘超波 阅读(7028) 评论(0) 编辑 收藏 举报#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; } }
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