Migrating Rotation Code to iOS 8

UIView+Orientation.h

//
//  UIView+Orientation.h
//

#import <UIKit/UIKit.h>

// These macros should only be used if you MUST know the interface orientation for the device itself, for example when displaying a new UIWindow.
// This should be very rare; generally you should only look at the immediate parent view's size (or "view orientation" using the category below).
#define StatusBarOrientationIsPortrait      UIInterfaceOrientationIsPortrait([[UIApplication sharedApplication] statusBarOrientation])
#define StatusBarOrientationIsLandscape     UIInterfaceOrientationIsLandscape([[UIApplication sharedApplication] statusBarOrientation])

typedef NS_ENUM(NSInteger, ViewOrientation) {
    ViewOrientationPortrait,
    ViewOrientationLandscape
};

@interface UIView (Orientation)

/** Returns the "orientation" of size. width > height is considered "landscape", otherwise "portrait" */
+ (ViewOrientation)viewOrientationForSize:(CGSize)size;

/** Returns the "orientation" of this view based on its size. width > height is considered "landscape", otherwise "portrait" */
- (ViewOrientation)viewOrientation;

/** Returns YES if this view's height >= width */
- (BOOL)isViewOrientationPortrait;

/** Returns YES if this view's width > height */
- (BOOL)isViewOrientationLandscape;

@end

UIView+Orientation.m

//
//  UIView+Orientation.m
//

@implementation UIView (Orientation)

+ (ViewOrientation)viewOrientationForSize:(CGSize)size {
    return (size.width > size.height) ? ViewOrientationLandscape : ViewOrientationPortrait;
}

- (ViewOrientation)viewOrientation {
    return [[self class] viewOrientationForSize:self.bounds.size];
}

- (BOOL)isViewOrientationPortrait {
    return [self viewOrientation] == ViewOrientationPortrait;
}

- (BOOL)isViewOrientationLandscape {
    return [self viewOrientation] == ViewOrientationLandscape;
}

@end

See this answer on Stack Overflow for more context: http://stackoverflow.com/a/27409619/796419
Also note that you may want to add a class prefix to the types and methods in this category for proper namespacing.

I created a Swift version: https://gist.github.com/klaas/cb8e9bbee4bdab9c59e8

Hi,

Could you say me,

It there a guide where Apple suggested to use this piece of code (UIView+Orientation) for layout migration?

i am using Width Regular & Height Regular Size Classes in iOS 9 using Autolayout and i need to load different storyboard for IPad Landscape & IPad Portrait only for three ViewController and my other screen are working fine in both the orientation. so i would your any suggestion what should i do for these three ViewController. Thanks

I find status bar orientation to be unreliable. The height , width comparison seems to be best way to do this.