Reskit - 回调在同一个线程而不是UI线程

Question

我在后台线程中执行getObjectsAtPath。但是，成功/失败块在UI线程上被调用。

有没有办法强制RestKit调用同一线程上的成功和失败块，而不是在UI线程上？

Answer 1

Restkit不提供此功能，但可以将其归档。

RKObjectRequestOperation类有两个属性successCallbackQueue & failureCallbackQueue，它们允许你设置回调队列。覆盖RKObjectManager类并返回RKObjectRequestOperation然后您可以设置回调队列。

- (RKObjectRequestOperation *)getObjectsAtPath:(NSString *)path 
      parameters:(NSDictionary *)parameters 
      success:(void (^)(RKObjectRequestOperation *operation, RKMappingResult *mappingResult))success 
      failure:(void (^)(RKObjectRequestOperation *operation, NSError *error))failure 
{ 
    NSParameterAssert(path); 
    RKObjectRequestOperation *operation = [self appropriateObjectRequestOperationWithObject:nil method:RKRequestMethodGET path:path parameters:parameters]; 
    [operation setCompletionBlockWithSuccess:success failure:failure]; 
    [self enqueueObjectRequestOperation:operation]; 
    return operation; 
} 

那么你可以设置回调队列为波纹管所示：

RKObjectManager *objectManager = [RKObjectManager sharedManager]; 
RKObjectRequestOperation *operation = [objectManager getObjectsAtPath:path 
        parameters:parameters 
         success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) { 

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

         }]; 

operation.successCallbackQueue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0); 
operation.failureCallbackQueue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0);