AFnetworking监测网络变化（iOS网络提示）

#import <Foundation/Foundation.h>

#import "AFHTTPSessionManager.h"

@interface AFAppDotNetAPIClient : AFHTTPSessionManager

+ (instancetype)sharedClient;

 

@end

#import "AFAppDotNetAPIClient.h"

static NSString * const AFAppDotNetAPIBaseURLString =@"https://api.app.net/";

@implementation AFAppDotNetAPIClient

+ (instancetype)sharedClient {

    static AFAppDotNetAPIClient *_sharedClient = nil;

    static dispatch_once_t onceToken;

    dispatch_once(&onceToken, ^{

        _sharedClient = [[AFAppDotNetAPIClient alloc]initWithBaseURL:[NSURLURLWithString:AFAppDotNetAPIBaseURLString]];

        _sharedClient.securityPolicy = [AFSecurityPolicypolicyWithPinningMode:AFSSLPinningModeNone]; 

        [_sharedClient.reachabilityManagersetReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatusstatus) {

            switch (status) {

                case AFNetworkReachabilityStatusReachableViaWWAN:

            //手机自带网络可用（GPRS)

                    NSLog(@"-------AFNetworkReachabilityStatusReachableViaWWAN------");

                    break;

                case AFNetworkReachabilityStatusReachableViaWiFi:

                   //WIFI可用

                    NSLog(@"-------AFNetworkReachabilityStatusReachableViaWiFi------");

                    break;

                case AFNetworkReachabilityStatusNotReachable:

                    //无网络连接

                    NSLog(@"-------AFNetworkReachabilityStatusNotReachable------");

                    break;

                default:

                    break;

            }

        }];

        [_sharedClient.reachabilityManager startMonitoring];

    });

    return _sharedClient;

}

@end