I created a UIViewController (based on How to switch views when rotating ) to

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Asked: May 20, 20262026-05-20T21:21:29+00:00 2026-05-20T21:21:29+00:00

I created a UIViewController (based on How to switch views when rotating ) to

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I created a UIViewController (based on How to switch views when rotating) to switch between 2 views when the device rotates. Each view is “specialized” for a particular orientation.

It uses the UIDeviceOrientationDidChangeNotification notification to switch views:

-(void) deviceDidRotate: (NSNotification *) aNotification{

    UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];

    NSLog(@"Device rotated to %d!", orientation);

    if ((orientation == UIDeviceOrientationPortrait) ||
        (orientation == UIDeviceOrientationPortraitUpsideDown)) {
        [self displayView:self.portraitViewController.view];
    }else if ((orientation == UIDeviceOrientationLandscapeLeft) ||
               (orientation == UIDeviceOrientationLandscapeRight)) {
        [self displayView:self.landscapeViewController.view];
    }

}

and sort of works. The problems shows up when I rotate to Landscape and then back to Portrait. When going back to portrait the subviews aren’t displayed in the right place, specially the UIPickerView:

First Time Portrait:
enter image description here