#import <Foundation/Foundation.h>
@interface NetWorkTool : NSObject
+ (instancetype)shareInstance;
- (void)startListing;
@end
#import "NetWorkTool.h"
@import Reachability;
@interface NetWorkTool()
@property (nonatomic) Reachability *hostReachability;
@property (nonatomic) Reachability *internetReachability;
@end
@implementation NetWorkTool
static NetWorkTool *tool = nil;
+(instancetype)shareInstance
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
tool = [[NetWorkTool alloc]init];
});
return tool;
}
- (void)startListing
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(reachabilityChanged:) name:kReachabilityChangedNotification object:nil];
NSString *remoteHostName = @"www.apple.com";
self.hostReachability = [Reachability reachabilityWithHostName:remoteHostName];
[self.hostReachability startNotifier];
[self updateInterfaceWithReachability:self.hostReachability];
self.internetReachability = [Reachability reachabilityForInternetConnection];
[self.internetReachability startNotifier];
[self updateInterfaceWithReachability:self.internetReachability];
}
- (void) reachabilityChanged:(NSNotification *)note
{
Reachability* curReach = [note object];
NSParameterAssert([curReach isKindOfClass:[Reachability class]]);
[self updateInterfaceWithReachability:curReach];
}
- (void)updateInterfaceWithReachability:(Reachability *)reachability
{
if (reachability == self.internetReachability)
{
[self configureReachability:reachability];
}
}
- (void)configureReachability:(Reachability *)reachability
{
NetworkStatus netStatus = [reachability currentReachabilityStatus];
BOOL connectionRequired = [reachability connectionRequired];
switch (netStatus)
{
case NotReachable: {
NSLog(@"没有网络");
connectionRequired = NO;
break;
}
case ReachableViaWWAN: {
NSLog(@"手机自带网络");
break;
}
case ReachableViaWiFi: {
NSLog(@"wifi网络");
break;
}
}
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self name:kReachabilityChangedNotification object:nil];
}
@end
#define NetWorkManager [NetWorkTool shareInstance]
[NetWorkManager startListing];
didFinishLaunchingWithOptions中调用即可 全局可以监听