Get device current orientation (App Extension)

Question

How to get device current orientation in an App Extension, I have tried below two methods but no success.

1. It always return UIDeviceOrientationUnknown

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Answer 1

The observer method will get called if you add this before: [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];

Edit: I use UIApplicationDidChangeStatusBarOrientationNotification for the observer

And in my method I check:

UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation]; BOOL isPortrait = UIDeviceOrientationIsPortrait(orientation);

Edit 2- Xcode 6.2 - iOS 7 & 8

It seems that if you want to use this on both iOS 7 & 8, the code above will give you wrong result on iOS 7.

So I use something else because on iOS 7 the mainScreen's bounds will never change, but on iOS 8 will change if the orientation changes.

I've got 3 macros that will give me the right size of the screen's width & height regardless of the iOS version:

#define IOS_VERSION_OLDER_THAN_8 ([[[UIDevice currentDevice] systemVersion] floatValue] < 8.0)

#define SCREEN_WIDTH_CALCULATED (IOS_VERSION_OLDER_THAN_8 ? (UIInterfaceOrientationIsPortrait([UIApplication sharedApplication].statusBarOrientation) ? [[UIScreen mainScreen] bounds].size.width : [[UIScreen mainScreen] bounds].size.height) : [[UIScreen mainScreen] bounds].size.width)

#define SCREEN_HEIGHT_CALCULATED (IOS_VERSION_OLDER_THAN_8 ? (UIInterfaceOrientationIsPortrait([UIApplication sharedApplication].statusBarOrientation) ? [[UIScreen mainScreen] bounds].size.height : [[UIScreen mainScreen] bounds].size.width) : [[UIScreen mainScreen] bounds].size.height)

Then, when the notification is fired, i check the orientation like this:

BOOL isPortrait = SCREEN_WIDTH_CALCULATED < SCREEN_HEIGHT_CALCULATED;

This will work on iOS 7 & iOS 8, but i didn't check for older versions of Xcode, only 6.2

This will return only if the device is on portrait or landscape, not all the 4 orientation types