UIRefreshControl not working when called prorgammatically

I have a UIRefreshControl in my ViewController and a method refreshView to handle "pull to refresh" event. It works perfectly when actually pulling, but when I call [refresh beginRefreshing] in code, it just shows refresh animation but doesn't call the refreshView method.

Here's code for initializing refresh control in viewDidload:

UIRefreshControl *refresh = [[UIRefreshControl alloc] init];
refresh.attributedTitle = [[NSAttributedString alloc] initWithString:@"Pull to Refresh"];
[refresh addTarget:self
            action:@selector(refreshView:)
  forControlEvents:UIControlEventValueChanged];
self.refreshControl = refresh;