的iOS：可达性AFNetworking

我‘这样，它做工精细的iOS：可达性AFNetworking

NSMutableArray *mutableOperations = [NSMutableArray array]; 
    for (NSString *stringURL in url_list) { 

     NSURL *url = [NSURL URLWithString:stringURL]; 
     NSURLRequest *request = [NSURLRequest requestWithURL:url]; 

     AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request]; 
     operation.responseSerializer = [AFHTTPResponseSerializer serializer]; 
     [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { 

      [self addDataToTotal:[self parseJSONfile:responseObject]]; 

     } failure:^(AFHTTPRequestOperation *operation, NSError *error) { 
      NSLog(@"Error: %@", error); 
     }]; 

     [mutableOperations addObject:operation]; 
    } 

    NSArray *operations = [AFURLConnectionOperation batchOfRequestOperations:mutableOperations progressBlock:^(NSUInteger numberOfFinishedOperations, NSUInteger totalNumberOfOperations) { 
     NSLog(@"progress:%f", (float)numberOfFinishedOperations/totalNumberOfOperations); 
    } completionBlock:^(NSArray *operations) { 
     NSLog(@"All operations in batch complete"); 
     [self startPopulateDBStructure:self.total]; 
    }]; 
    [[NSOperationQueue mainQueue] addOperations:operations waitUntilFinished:NO];

现在我想用”做’行动的批量可达性属性“，检查连接状态，我这样做

[[[NSOperationQueue mainQueue]reachabilityManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) { 
     switch (status) { 
      case AFNetworkReachabilityStatusReachableViaWWAN: 
      case AFNetworkReachabilityStatusReachableViaWiFi: 
       [[NSOperationQueue mainQueue] setSuspended:NO]; 
       break; 
      case AFNetworkReachabilityStatusNotReachable: 
      default: 
       [[NSOperationQueue mainQueue] setSuspended:YES]; 
       break; 
     } 
    }];

但我得到这个消息的崩溃，问题在哪里？

[NSOperationQueue reachabilityManager]: unrecognized selector sent to instance

来源

2014-02-26 CrazyDev

您正在试图从主NSOperationQueue，它没有它的reachabilityManager。您应该使用[AFNetworkReachabilityManager sharedManager]来获取reachabilityManager实例。

所以：

[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) { ...

另外，还要考虑尝试暂停主队列的逻辑。你可能想要做的是从你的AFHTTPRequestOperationManager实例获得operationQueue和悬浮剂什么......

来源

2014-02-26 11:17:21 Wain

以及我如何得到它？ – CrazyDev

好吧，这个'[AFNetworkReachabilityManager sharedManager]'为'[NSOperationQueue mainQueue]'工作？ – CrazyDev

可达性管理器与操作队列无关。而且你似乎不太可能试图暂停主队列...... – Wain

试试这个：

 [[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) { 
      switch (status) { 
      case AFNetworkReachabilityStatusReachableViaWWAN: 
      case AFNetworkReachabilityStatusReachableViaWiFi: 
       [[NSOperationQueue mainQueue] setSuspended:NO]; 
       break; 
      case AFNetworkReachabilityStatusNotReachable: 
      default: 
       [[NSOperationQueue mainQueue] setSuspended:YES]; 
       break; 
     } 
}];

来源

2014-02-26 11:18:53 simalone

可以简化@ simalone的回答：

[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) { 
     [[NSOperationQueue mainQueue] setSuspended:![AFNetworkReachabilityManager sharedManager].reachable]; 
    } 
}];

@Wain是对的，暂停mainQueue听起来不是一个伟大的计划。

使用AFHTTPRequestOperationManager并分配您自己的操作Queue。

来源

2014-02-26 11:36:47

的iOS：可达性AFNetworking

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