UIView+ViewExpanding.h

UIView+ViewExpanding.h

//
//  UIView+ViewExpanding.h
//  VodafoneTest
//
//  Created by Robert Saunders on 02/03/2012.
//  Copyright (c) 2012 __MyCompanyName__. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface UIView (ViewExpanding)

- (void) insertViewAbove:(UIView*)view;
- (void) removeView:(UIView*)view;

@end

UIView+ViewExpanding.m

//
//  UIView+ViewExpanding.m
//  VodafoneTest
//
//  Created by Robert Saunders on 02/03/2012.
//  Copyright (c) 2012 __MyCompanyName__. All rights reserved.
//

#import "UIView+ViewExpanding.h"

@implementation UIView (ViewExpanding)

- (void) insertViewAbove:(UIView*)view {
    
    float viewHeight = view.frame.size.height;
    float oldY = self.frame.origin.y;
    
    CGRect myFrame = self.frame;
    myFrame.origin.y += viewHeight;
    myFrame.size.height -= viewHeight;
    
    CGRect newFrame = view.frame;
    newFrame.origin.y = oldY;
    newFrame.size.height = 0;
    view.frame = newFrame;
    newFrame.size.height = viewHeight;
    
    [UIView animateWithDuration:0.8 animations:^{
        self.frame = myFrame;
        view.frame = newFrame;
    }];

    
    [self.superview addSubview:view];
}

- (void) removeView:(UIView*)view
{
    float viewHeight = view.frame.size.height;
    float oldY = view.frame.origin.y;
    
    CGRect myFrame = self.frame;
    myFrame.origin.y -= viewHeight;
    myFrame.size.height += viewHeight;
    
    CGRect newFrame = view.frame;
    newFrame.origin.y = oldY;
    newFrame.size.height = 0;
    
    [UIView animateWithDuration:0.8 animations:^{
        self.frame = myFrame;
        view.frame = newFrame;
    } completion:^(BOOL finished) {
        [view removeFromSuperview];
    }];

}
    

@end