1.从官网出下载Reachability.h/m文件,拖入工程
https://developer.apple.com/library/ios/samplecode/Reachability/Listings/Reachability_Reachability_m.html
2.调用Reachability.h头文件,并创建全局变量Reachability *internetReachability;
3.在AppDelegate的- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions方法中创建通知
//添加一个系统通知
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(reachabilityChanged:) name:kReachabilityChangedNotification object:nil];
//初始化
internetReachability=[Reachability reachabilityForInternetConnection];
//通知添加到Run Loop
[internetReachability startNotifier];
[self updateInterfaceWithReachability:internetReachability];
4.实现通知方法
- (void) reachabilityChanged:(NSNotification *)note
{
Reachability* curReach = [note object];
NSParameterAssert([curReach isKindOfClass:[Reachability class]]);
[self updateInterfaceWithReachability:curReach];
}
5.监测网络状态方法
- (void)updateInterfaceWithReachability:(Reachability *)reachability
{
NetworkStatus netStatus = [reachability currentReachabilityStatus];
switch (netStatus) {
case NotReachable:
NSLog(@"====当前网络状态不可用=======");
break;
case ReachableViaWiFi:
NSLog(@"====当前网络状态为Wifi=======");
break;
case ReachableViaWWAN:
NSLog(@"====当前网络状态为流量=======keso");
break;
}
}
注:
1.此方法能监测所有页面的网络状态,可是要在当前页面获取当前网络状态则需要使用AFNetWorking,如果不嫌麻烦那就一个一个写.
2.如果有更好的方法请留言,谢谢.
