HttpClient setReachabilityStatusChangedBlock声明没有接口

Question

尝试使用AFNetworkings ReachabilityStatusChanged但获取

"HTTPCLIENT没有可见的@interface声明选择器setReachabilityStatusChangeBlock"

但HttpClient具有该功能.任何人都知道为什么会这样吗？

AFHTTPClient *client = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:@"http://stat-api.herokuapp.com/"]];
[client setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status){

    NSLog(@"%d", status);

}];

///更新///////////

这是我的.pch文件

#ifdef __OBJC__
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#import <CoreData/CoreData.h>
#import "NSDate+Helper.h"
#import "NSEntityDescription+RKAdditions.h"
#import "UIAlertView+MKBlockAdditions.h"
#import "UIActionSheet+MKBlockAdditions.h"
#import "MKBlockAdditions.h"
#import "NSObject+MKBlockAdditions.h"
#import "NSString+Extra.h"
#import "UIView+Additions.h"
#import "ObjectiveSugar.h"
#import "NSNotificationCenter+UniqueNotif.h"
#import "STUIColor+Custom.h"
#import "NSObject+STNSObjectAdditions.h"
#import "UIView+Gradientcy.h"
#import "NSString+USStateMap.h"
#import "STUITextField.h"
#import "UIImage+UIImageCrop.h"
#import "UIBorderLabel.h"
#import <SystemConfiguration/SystemConfiguration.h>



#endif

Answer 1

移动

#import <SystemConfiguration/SystemConfiguration.h>

就在这一行之后:

#ifdef __OBJC__