Embed Segue for iOS5

iOS5EmbedSegue.h

//
//  iOS5EmbedSegue.h
//  Created by Stephanie Sharp on 2/05/13.
//

#import <UIKit/UIKit.h>

@interface iOS5EmbedSegue : UIStoryboardSegue

@property (nonatomic, strong) UIView * containerView;

@end

iOS5EmbedSegue.m

//
//  iOS5EmbedSegue.m
//  Created by Stephanie Sharp on 2/05/13.
//
// Helpful links:
// http://stackoverflow.com/questions/14432310/embed-segue-ios-5
// http://www.quentamia.com/blog/embed-segue-in-ios-5/


#import "iOS5EmbedSegue.h"

@implementation iOS5EmbedSegue

@synthesize containerView;

- (void)perform
{
    if (!self.containerView)
        self.containerView = [self.sourceViewController view];
        
    [self.sourceViewController addChildViewController:self.destinationViewController];
    [self.containerView addSubview:[self.destinationViewController view]];
    [self.destinationViewController didMoveToParentViewController:self.sourceViewController];
}

@end

first Question. why did you took sourceViewController's view as containerView is it is not there..?
second. Is there any way from storyboard to say that this is the container view.?

1. If you do not set the containerView property, it will default to the sourceViewController's view. Otherwise, the segue will embed the destinationViewController in the containerView.
2. As far as I am aware, there is no way to specify the containerView in the storyboard.

I set thecontainerView in the prepareForSegue:sender: method. For example:

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([segue.identifier isEqualToString:@"SEGUE_IDENTIFIER"])
    {
        iOS5EmbedSegue * embedSegue = (iOS5EmbedSegue *)segue;
        embedSegue.containerView = self.containerView;
    }
}