afnetworking取消成功block

Question

我想在再次运行请求时停止/取消操作。方法cancelAllHTTPOperationsWithMethod的工作正常，但是当afnetworking已经取得了结果并且我的成功板被触发时，我有一个问题 - 我想在不久的将来停止它。但是问题是该操作未取消。

问题是我必须在NSOperation中执行我的"非常长的成功块"并取消它们，还是有任何更轻松，更快的方法？

代码：

[[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
}];

Answer 1

我在内部执行NSOperation结束。类似：

[[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];
}];