一、AFSecurityPolicy的使用

- (AFSecurityPolicy *)securityPolicy{
    [NSMutableArray arrayWithCapacity:1];
    // .crt --->.cer
    NSString *cerPath = [[NSBundle mainBundle] pathForResource:@"https" ofType:@"cer"];
    NSData   *data    = [NSData dataWithContentsOfFile:cerPath];
    NSLog(@"%@",[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]);//打印不出来
    NSSet    *cerSet  = [NSSet setWithObject:data];
    AFSecurityPolicy *security = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeCertificate withPinnedCertificates:cerSet];
    [AFSecurityPolicy defaultPolicy];
    
    security.allowInvalidCertificates = YES;
    security.validatesDomainName      = NO;
    return security;
}

二、解决第一次下载安装app时，无网络的bug

if (__IPHONE_10_0) {
        [self cellularData];
    }else{
        [self startMonitoringNetwork];
    }

#pragma mark - 网络权限监控
- (void)cellularData{
    
    CTCellularData *cellularData = [[CTCellularData alloc] init];
    
    cellularData.cellularDataRestrictionDidUpdateNotifier = ^(CTCellularDataRestrictedState state) {
        
        switch (state) {
            case kCTCellularDataRestrictedStateUnknown:
                NSLog(@"不明错误.....");
                break;
            case kCTCellularDataRestricted:
                NSLog(@"没有授权....");
                [self testBD]; // 默认没有授权 ... 发起短小网络弹出授权框
                break;
            case kCTCellularDataNotRestricted:
                NSLog(@"授权了////");
                [self startMonitoringNetwork];//授权之后在监控网络
                break;
            default:
                break;
        }
    };
}

#pragma mark - startMonitoringNetwork

- (void)startMonitoringNetwork{
    AFNetworkReachabilityManager *manager = [AFNetworkReachabilityManager sharedManager];
    
    [manager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
        switch (status) {
            case AFNetworkReachabilityStatusUnknown:
                NSLog(@"未知网络,请检查互联网");
                break;
            case AFNetworkReachabilityStatusNotReachable:
                NSLog(@"无网络,请检查互联网");
                break;
            case AFNetworkReachabilityStatusReachableViaWWAN:
                NSLog(@"连接蜂窝网络");
                [self testBD];
                break;
            case AFNetworkReachabilityStatusReachableViaWiFi:
                NSLog(@"WiFi网络");
                [self testBD];
                break;
            default:
                break;
        }
    }];
    [manager startMonitoring];

}

#pragma mark - 网络测试接口
- (void)testBD{
    NSString *urlString = @"http://api.douban.com/v2/movie/top250";
    NSDictionary *dic = @{@"start":@(1),
                          @"count":@(5)
                          };
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    [manager GET:urlString parameters:dic progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        NSLog(@"请求成功:%@---%@",task,responseObject);
        
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        NSLog(@"错误提示:%@---%@",task,error);
    }];
}