Question

UISwipeGestureRecognizer *swipeGestureRecognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(resignTextView)];    
         swipeGestureRecognizer.direction=UISwipeGestureRecognizerDirectionDown;
        swipeGestureRecognizer.numberOfTouchesRequired=1;
    [self.tableview addGestureRecognizer:swipeGestureRecognizer];


-(void)resignTextView
{
  [textView resignFirstResponder];
}

I do not know Why resignTextView method not get called?

Answer 1

The tableview has a scrollview and you can get the delegates of it to get the scroll events.

Check the docs for the UIScrollViewDelegate protocol, and implement the -scrollViewDidScroll: or -scrollViewWillBeginDragging: methods as appropriate to your situation.

Just implement the methods and it works since the tableview delegates implements the underlying scroll delegates.