在iOS 8中的呈现视图控制器中，界面方向不正确

Question

in iOS 7 and earlier, I was able to make UI changes in viewDidLayoutSubviews like so:

- (void)viewDidLayoutSubviews {

    [super viewDidLayoutSubviews];

    if ( UIInterfaceOrientationIsLandscape(self.interfaceOrientation) ) {

        //update views for landscape

    }

    else {

        //update views for portrait

    }

}

I can still do this in iOS 8 except in view controllers that are presented by other view controllers. When a view controller is presented by another view controller, this does not work, because the self.interfaceOrientation property is not correct in the presented view controller. It does not reflect the current orientation, but rather the orientation right before the device rotation.

The issue is not present if presenting a view controller on iPad with modalPresentationStyle set to UIModalPresentationPageSheet . In other words, the issue is only present when presenting a full screen view controller.

Any suggestions?

Answer 1

Try using this instead:

[[UIApplication sharedApplication] statusBarOrientation]

Also, if you are dropping support for iOS 7 and going 8-only, I recommend you drop interface orientation handling in favor of trait collections and size classes, if you can.