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Block Begins { Network call with call BACk/block begins { first network call is done } } Second Block Begins { Network call with call BACk/block begins { second network call is done } } Only run this block once the NETWORK CALLS are done { blah }@H_944_5@这是我到目前为止所拥有的. @H_944_5@
NSOperationQueue *queue = [[NSOperationQueue alloc] init]; __block NSString *var; [queue addoperation:[NSBlockOperation blockOperationWithBlock:^{ [AsyncReq get:^{ code } onError:^(NSError *error) { code }]; }]]; [queue addoperation:[NSBlockOperation blockOperationWithBlock:^{ [AsyncReq get:^{ code } onError:^(NSError *error) { code }]; }]]; [queue waitUntilAllOperationsAreFinished]; //do something with both of the responses
dispatch_group_t group = dispatch_group_create(); dispatch_group_enter(group); [AsyncReq get:^{ code dispatch_group_leave(group); } onError:^(NSError *error) { code dispatch_group_leave(group); }]; dispatch_group_enter(group); [AsyncReq get:^{ code dispatch_group_leave(group); } onError:^(NSError *error) { code dispatch_group_leave(group); }]; dispatch_group_notify(group,dispatch_get_main_queue(),^{ NSLog(@"Both operations completed!") });
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