fuck when UIRefreshControl refresh manually but the tintcolor not change

gistfile1.txt

[UIView animateWithDuration:0.25 delay:0 options:UIViewAnimationOptionBeginFromCurrentState animations:^(void){
    self.tableView.contentOffset = CGPointMake(0, -self.refresh.frame.size.height);
} completion:^(BOOL finished) {
    [self.refresh beginRefreshing];
    [self loadProductsList];
}];