使用AFNetworking（AFClient）檢查網絡是否困難

Question

我在我的應用程序中使用了AfNetworking 1.0。 我創建了AFHTTPClient的單例類。 以下是我的代碼；

 + (id)sharedInstance {

 static WebServices *__sharedInstance;
 static dispatch_once_t onceToken;
 dispatch_once(&onceToken, ^{
 NSString *WebServiceBaseURLString = [[NSUserDefaults standardUserDefaults]stringForKey:@"URL"];

 __sharedInstance = [[WebServices alloc] initWithBaseURL:[NSURL URLWithString:WebServiceBaseURLString]];



 });


 return __sharedInstance;
 }



 - (id)initWithBaseURL:(NSURL *)url {


 self = [super initWithBaseURL:url];


 if (self) {

 NSString *accessToken = [[NSUserDefaults standardUserDefaults] stringForKey:@"UserToken"];
 NSLog(@"accessToken=%@",accessToken);

 [self setAuthorizationHeaderWithToken:accessToken];

 NSLog(@"self=%@",self);

 [self registerHTTPOperationClass:[AFJSONRequestOperation class]];

 self.parameterEncoding = AFJSONParameterEncoding;
 [AFJSONRequestOperation addAcceptableContentTypes:[NSSet setWithObject:@"application/json"]];



 }


 return self;
 }

它的工作文件。

但是現在我想使用AFNetworkReachabilityStatus塊

檢查網絡。

 [self setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status){
 NSLog(@"changed %d", status);

 }];

誰能建議我如何使用AFNetworkReachabilityStatus塊？

Answer 1

• （void）startMonitoringWithStatusChangeBlock：（void（^）（AFNetworkReachabilityStatus status））block {

  [自我停止監視]；

  如果（！self.networkReachability）{返回； }

  __weak __typeof（self）weakSelf =自我; AFNetworkReachabilityStatusBlock回調= ^（AFNetworkReachabilityStatus狀態）{__strong __typeof（weakSelf）strongSelf = weakSelf;

   strongSelf.networkReachabilityStatus = status; if (block) { block(status); } 

  };

  SCNetworkReachabilityContextContext context = {0，（__bridge void *）callback，AFNetworkReachabilityRetainCallback，AFNetworkReachabilityReleaseCallback，NULL};

  SCNetworkReachabilitySetCallback（self.networkReachability，AFNetworkReachabilityCallback，＆context）;

  SCNetworkReachabilityFlags標志；

  SCNetworkReachabilityGetFlags（self.networkReachability，＆flags）;

  dispatch_async（dispatch_get_main_queue（），^ {AFNetworkReachabilityStatus status = AFNetworkReachabilityStatusForFlags（flags）; callback（status）;}）;

  SCNetworkReachabilityScheduleWithRunLoop（self.networkReachability，CFRunLoopGetMain（），kCFRunLoopCommonModes）;

}