AFNetworking cancel successBlock

我想在再次運行請求時停止/取消操作。方法cancelAllHTTPOperationsWithMethod工作正常，但是當AFNetworking已經提取結果並且我的successBlock被解僱時我有問題 - 我想在最近的將來停止它。但問題是，operation.isCancelled不會被取消。AFNetworking cancel successBlock

問題是我是否必須在NSOperation中執行「非常長的successBlock」並取消它們，或者有沒有更簡單快捷的方法？

代碼：

[[AFHTTPClient sharedInstance] cancelAllHTTPOperationsWithMethod:@"GET" path:@"path"]; 
[[AFHTTPClient sharedInstance] getPath:@"path" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { 
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^(void) { 
     for (longLoop) { 
      // do something long 
      if (self.isCancelled) return; // this won't fire no matter how often i run it 
     } 
    }); 

} failure:^(AFHTTPRequestOperation *operation, NSError *error) { 
    // do something to fail 
}];

來源

2014-01-30 Vive

你能夠在該循環中測試'operation.isCancelled'。你說「operation.isCancelled沒有取消」，但這並不意味着什麼。重點是，它是*設置*？ – trojanfoe

@trojanfoe那麼，這是我的問題和我的問題。我期望它被設置，因爲我早些時候調用'cancelAllHTTPOperationsWithMethod'（我粘貼的代碼在循環中可以說），但是如果successBlock開始運行，那麼即使我通過cancelAllHTTPOperationsWithMethod取消它， t改變 – Vive

那麼爲什麼'self.isCancelled'的測試呢？ – trojanfoe

我裏面做NSOperation結束。例如：

[[AFHTTPClient sharedInstance] cancelAllHTTPOperationsWithMethod:@"GET" path:@"path"]; 
[operationQueue cancelAllOperations]; 

[[AFHTTPClient sharedInstance] getPath:@"path" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { 
    // add new operation 
    MyOperation *successOperation = [[MyOperation alloc] init]; 
    [successOperation setResponseObject:responseObject]; 
    [operationQueue addOperation:successOperation]; 

} failure:^(AFHTTPRequestOperation *operation, NSError *error) { 
    // call delegate 
    [self didFailFetchDataWithError:error]; 
}];

來源

2014-01-30 14:57:21 Vive

AFNetworking cancel successBlock

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