Toggle animation of view (up/down) on button click

In the below code snippet SearchBar toggles up and down with animation effect

[self animateView:DOWN];

////////////////////////////////////////////////////////

// Method : animateView

// Params : direction

// Return : animate the searchview appearance

////////////////////////////////////////////////////////

- (void)animateView:(NSString *)direction {

    

    [self.view bringSubviewToFront:patientSearchbar];

    

    if ([direction isEqualToString:DOWN]) {

        

        CGRect initialFrame = CGRectMake(0, 0 - searchView.frame.size.height  

        + 44, searchView.frame.size.width, searchView.frame.size.height);

        searchView.frame = initialFrame;

        

        searchView.layer.borderColor = VIOLET_BORDER_COLOR;

        searchView.layer.masksToBounds = NO;

        searchView.layer.shadowColor = [[UIColor blackColor] CGColor];

        searchView.layer.shadowOpacity = 1.0;

        searchView.layer.shadowRadius = 10.0;

        searchView.layer.shadowOffset = CGSizeMake(0, 3);

        

        [UIView animateWithDuration:0.5 delay:0.0 

        options:UIViewAnimationOptionCurveEaseOut animations:^{  

            

            CGRect viewRect =  CGRectMake(initialFrame.origin.x, 

        initialFrame.origin.y + initialFrame.size.height, 

        initialFrame.size.width, initialFrame.size.height);

           

            searchView.frame = viewRect;

            

        } completion:^(BOOL finished) {

             // Perform completion task here

        }];

        

    } else if ([direction isEqualToString:UP]){

        

        [UIView animateWithDuration:0.5 delay:0.0 

         options:UIViewAnimationOptionCurveEaseOut animations:^{  

       

              CGRect originalFrame = CGRectMake(0, 0 - 

         searchView.frame.size.height + 44, searchView.frame.size.width, 

         searchView.frame.size.height);

        

         searchView.frame = originalFrame;

            

        } completion:^(BOOL finished) {

            [searchView removeFromSuperview];

        }];

    }

}