AFHTTPRequestOperation取消请求 [英] AFHTTPRequestOperation Cancel Request

问题描述

有没有办法取消AFHTTPRequestOperation？我用它来下载PLIST例如。所以我打算用一个按钮来取消下载或任务。
有办法吗？

Is there a way to cancel a AFHTTPRequestOperation? I am using it to download a PLIST for example. So I was planning to have a button to cancel the download or task. Is there a way?

更新：

operationQueue = [NSOperationQueue new];

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:myURL] cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30.0];

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

    NSLog(@"DONE");        

} failure:^(AFHTTPRequestOperation *operation, NSError *error) {

    NSLog(@"%@", error);

}
 ];

 [operationQueue addOperation:operation];

所以我把操作放到operationQueue并且可以用以下命令停止操作：

So I have put "operation" to "operationQueue" and can stop the operation with:

[operationQueue cancelAllOperations];

这只是队列中的一个操作。如果有多个，是否有办法显式停止操作？我猜控制台中存在以下错误 - 如果队列被取消，这是正常的吗？

This is only one operation in the queue. Is there a way to stop operation explicit if there are more than one? I guess the following error in the console - is it normal if a queue gets cancelled?

错误域= NSURLErrorDomain代码= -999操作无法完成。

Error Domain=NSURLErrorDomain Code=-999 "The operation couldn’t be completed.

推荐答案

您可以使用：

[operation cancel];

这是一种由AFNetworking实施的NSOperation方法。

This is an NSOperation method that's implemented by AFNetworking.

这篇关于AFHTTPRequestOperation取消请求的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！