检测网络连接状态

http://blog.csdn.net/ysh1251685564/article/details/37526747

#import "AFNetworkReachabilityManager.h"
- (BOOL)isNetWorkReachable{

__block CGRect rect
= _nonNetworkLabel.frame; //这里的声明前面加__block，作用是在块里可以修改rect的值；

AFNetworkReachabilityManager *afNetworkReachabilityManager = [AFNetworkReachabilityManager sharedManager];

[afNetworkReachabilityManager startMonitoring]; //开启网络监视器；

[afNetworkReachabilityManager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status)
{

switch (status) {

case AFNetworkReachabilityStatusNotReachable:{

NSLog(@"网络不通：%f",
rect.origin.y );

_nonNetworkLabel.hidden = NO;

_nonNetworkLabel.text = @"网络不通..";

[self performSelector:@selector(hidden) withObject:nil afterDelay:3];

break;

}

case AFNetworkReachabilityStatusReachableViaWiFi:{

NSLog(@"网络通过WIFI连接：%f",
rect.origin.y );

_nonNetworkLabel.hidden = NO;

_nonNetworkLabel.text = @"网络通过WIFI连接..";

[self performSelector:@selector(hidden) withObject:nil afterDelay:3];

break;

}

case AFNetworkReachabilityStatusReachableViaWWAN:{

NSLog(@"网络通过流量连接：%f",
rect.origin.y );

_nonNetworkLabel.hidden = NO;

_nonNetworkLabel.text = @"网络通过流量连接..";

[self performSelector:@selector(hidden) withObject:nil afterDelay:3];

break;

}

default:

break;

}

}];

return [AFNetworkReachabilityManager sharedManager].isReachable;

}

- (void)hidden

{

_nonNetworkLabel.hidden = YES;

}

- (void)viewDidLoad

{

[super viewDidLoad];

if ([[[UIDevice currentDevice]systemVersion]floatValue]>=7.0)
{

self.tabBar.translucent = NO;

}

else if ([[[UIDevice currentDevice]systemVersion]floatValue]
< 7.0){

}

//self.view.backgroundColor = [UIColor redColor];

//默认选择第几个

self.selectedIndex = 0;

self.nonNetworkLabel =
[[UILabel alloc]initWithFrame:CGRectMake(80, self.view.frame.size.height - 70, 160, 20)];

_nonNetworkLabel.backgroundColor =
[UIColor blackColor];

_nonNetworkLabel.alpha = 0.6;

_nonNetworkLabel.textColor =
[UIColor whiteColor];

_nonNetworkLabel.textAlignment = NSTextAlignmentCenter;

_nonNetworkLabel.font =
[UIFont systemFontOfSize:12];

_nonNetworkLabel.hidden = YES;

[self.view addSubview:_nonNetworkLabel];

[self isNetWorkReachable];

}