的iOS：可達性AFNetworking

我‘這樣，它做工精細的iOS：可達性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];

現在我想用」做’行動的批量可達性屬性「，檢查連接狀態，我這樣做

[[[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; 
     } 
    }];

但我得到這個消息的崩潰，問題在哪裏？

[NSOperationQueue reachabilityManager]: unrecognized selector sent to instance

來源

2014-02-26 CrazyDev

您正在試圖從主NSOperationQueue，它沒有它的reachabilityManager。您應該使用[AFNetworkReachabilityManager sharedManager]來獲取reachabilityManager實例。

所以：

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

另外，還要考慮嘗試暫停主隊列的邏輯。你可能想要做的是從你的AFHTTPRequestOperationManager實例獲得operationQueue和懸浮劑什麼......

來源

2014-02-26 11:17:21 Wain

以及我如何得到它？ – CrazyDev

好吧，這個'[AFNetworkReachabilityManager sharedManager]'爲'[NSOperationQueue mainQueue]'工作？ – CrazyDev

可達性管理器與操作隊列無關。而且你似乎不太可能試圖暫停主隊列...... – Wain

試試這個：

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

來源

2014-02-26 11:18:53 simalone

可以簡化@ simalone的回答：

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

@Wain是對的，暫停mainQueue聽起來不是一個偉大的計劃。

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

來源

2014-02-26 11:36:47

的iOS：可達性AFNetworking

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