Position UIView above tab bar in any orientation programmatically

Question

I have a UIView which I would like to have aligned just above the UITabBar in both portrait and landscape orientation. I would like to do this programmatically.

This is all I have in my UIView subclass, IPChatTextView:

/* Initialization */
- (id)init
{
    if (self = [super init])
    {
        // Set frame
        self.frame = CGRectMake(0, 0, 320, 40);

        // Create background
        UIEdgeInsets insetsBackground = UIEdgeInsetsMake(20, 50, 19, 82);
        UIImage *imageBackground = [[UIImage imageNamed:@"ChatTextView_Background.png"] resizableImageWithCapInsets:insetsBackground];
        UIImageView *imageViewBackground = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 320, 40)];
        imageViewBackground.autoresizingMask = UIViewAutoresizingFlexibleWidth;
        imageViewBackground.image = imageBackground;

        // Add subviews
        [self addSubview:imageViewBackground];
    }

    return self;
}

The image view imageViewBackground should fill the entire UIView and therefore I have set it's autoresizing mask to UIViewAutoresizingFlexibleWidth. This works fine.

When initializing the view, I set it's autoresizing mask.

self.chatTextView = [[IPChatTextView alloc] init];
self.chatTextView.frame = CGRectMake(0, 327, 320, 40);
self.chatTextView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin;
[self.view addSubview:self.chatTextView];

I have tried adding a UIView in Interface Builder and set it's autoresizing mask as in the image below and it works perfectly.

I thought that when I want to have the same autoresizing as the image above, I would do it programmatically as the code below but it doesn't give me the same result. Instead it is positioned about 2/3 from the top, which seems odd as I set the y-position of the self.chatTextView to 327 which is just above the tab bar.

self.chatTextView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin;

Does anyone know how I should set my autoresizing mask when I want the view to be positioned above the tab bar in both portrait and landscape orientation?

EDIT:

If I change the autoresizing mask to include UIViewAutoresizingMaskFlexibleBottomMargin instead of UIViewAutoresizingMaskFlexibleTopMargin, the view is aligned above the tab bar in portrait mode but is gone out of the screen in landscape mode.

Answer 1

I ended up positioning it programmatically when a rotation was detected.