Question

I have a simple UIViewController that uses a XIB for its interface.

As such, the interface simply comprises a UIView, a UIActivityIndicator and a UILabel. I have the sizing constraints in Interface Builder set to keep the activity indicator and the label centred when the view rotates.

The UIViewController is set to return YES for portrait and landscape orientations in the -shouldAutorotateToInterfaceOrientation: method.

The view is added to the view hierarchy manually, using

if (!activityOverlay)
    activityOverlay = [[XBActivityOverlayViewController alloc] initWithNibName:@"XBActivityOverlayViewController" bundle:nil message:@"Connecting..."];

[activityOverlay.view setAlpha:0.0f];
[self.window addSubview:activityOverlay.view];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.3f];
[activityOverlay.view setAlpha:0.9f];
[UIView commitAnimations];

The problem I’m having is that if the device is already in landscape orientation and the view is added to the hierarchy at this point, the view is still in portrait orientation, and doesn’t auto rotate.

What do I need to do to add the view in the same orientation as the parent view?

Answer 1

I do not know if it is the right answer to your question but I hope can help:

For me, every time I add/dismiss a modal or display a new view, the following function is called:

-(void) detectOrientation 
{


 if (([[UIDevice currentDevice] orientation] == UIDeviceOrientationLandscapeLeft) || 
     ([[UIDevice currentDevice] orientation] == UIDeviceOrientationLandscapeRight)) 
 {

             item1.frame = CGRectMake(147.0, 241.0, 56.0, 28.0);
     item2.frame = CGRectMake(265.0, 241.0, 56.0, 28.0);

 }
 else if (([[UIDevice currentDevice] orientation] == UIDeviceOrientationPortrait) ||
          ([[UIDevice currentDevice] orientation] == UIDeviceOrientationPortraitUpsideDown) || !inLandscapeOrientation)
 {

    item1.frame = CGRectMake(35.0, 425.0, 35.0, 28.0);
item2.frame = CGRectMake(176.0, 425.0, 35.0, 28.0);
 }

}

Here I change the position according to the current device orientation. Maybe if you detect that the current orientation is landscape you add a subview that has such orientation.

Alejandra 🙂