问ios5 -带有情节提要的模式视图控制器的大小

EN

#import <UIKit/UIKit.h>
@interface MyStoryboardSegue : UIStoryboardSegue
@end

#import "MyStoryboardSegue.h"

@implementation MyStoryboardSegue


- (void)perform
{
    id sourceController = self.sourceViewController;
    id destinationController = self.destinationViewController;
    UIView *destinationView = [destinationController view];
    CGFloat x, y, w, h;

    [destinationController setModalPresentationStyle:UIModalPresentationFormSheet];
    [destinationController setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
    [sourceController presentViewController:destinationController animated:YES completion:nil];

/* 
You have to present the view first, and then resize it. That's because,
as far as I can tell, when you present your view modally, a new view is created
that covers the screen in a black semi-transparent mask to give the shadow effect,
and a container view is placed in the middle of this view that in turn holds the
view you are presenting. Your view automatically resizes to the size of this
container view, so that's the view you need to resize to make your view controller
appear the size you desire. You must present your modal view first 
because until you do, the container view doesn't exist. The following code
resizes the container view (which is now your modal view's superview) and then
resets the position of the container view to the center of the source view that
is presenting the modal view so everything looks nice and centered.
*/
    x = destinationView.superview.frame.origin.x;
    y = destinationView.superview.frame.origin.y;
    w = 400;  // Your desired modal view width
    h = 400;  // Your desired modal view height
    destinationView.superview.frame = CGRectMake(x, y, w, h);
    destinationView.superview.center = [[sourceController view] center];
}

@end