iOS开发中如何设置请求超时时间 


 1 NSString *baseUrl;
 2     NSURL *url = [NSURL URLWithString:[baseUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
 3     NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:10];
 4     AFJSONRequestOperation *jsonOper = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON)  {
 5         
 6     }
 8     failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
 9        
10                                                                                        }];

以上是AFN的设置请求超时时间.

 

对于SDWebImage来说

在在SDWebImageDownloader.m文件中的 downloadImageWithURL.

具体为：

1 - (id<SDWebImageOperation>)downloadImageWithURL:(NSURL *)url options:(SDWebImageDownloaderOptions)options progress:(void (^)(NSUInteger,long long))progressBlock completed:(void (^)(UIImage *,NSData *, NSError *, BOOL))completedBlock函数。

主要是：

1 - (id)initWithURL:(NSURL *)URL cachePolicy:(NSURLRequestCachePolicy)cachePolicy timeoutInterval:(NSTimeInterval)timeoutInterval；中的timeoutInterval

决定。

 

如果请求超时之后我们可以取消AFN的请求,通过以下代码实现:

 1      // 1.创建AFN管理者
 2     AFHTTPRequestOperationManager *mange = [AFHTTPRequestOperationManager manager];
 3     
 4     // 2.发送请求
 5     [mange GET:url parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {
 6         // 请求成功
 7         IWLog(@"请求成功");
 8         if (success) {
 9             success(responseObject);
10         }
11         
12     } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
13         
14         IWLog(@"请求失败");
15         if (failure) {
16             failure(error);
17         }
18     }];
19     
20     //3.取消请求
21     [mange.operationQueue cancelAllOperations];

 

posted @ 2014-12-17 15:58  对酒狂歌吃馍  阅读(7865)  评论(0)  编辑  收藏  举报