Automatically Sizing UIView after Adding to Window

Question

Note: This may be a duplicate of Subview Doesnt AutoSize When Added to Root View Controller

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I have an iPad app that switches between different views in its mai

Answer 1

This works, but it seems a little hacky:

- (void)switchToViewController:(UIViewController *)viewController {
    if (viewController != currentViewController) {
        UIInterfaceOrientation orientation = currentViewController.interfaceOrientation;
        [currentViewController.view removeFromSuperview];

        currentViewController = viewController;
        UIView *view = viewController.view;

        // Set appropriate view frame (it won't be autosized by addSubview:)
        CGRect appFrame = [[UIScreen mainScreen] applicationFrame];
        if (UIInterfaceOrientationIsLandscape(orientation)) {
            // Need to flip the X-Y coordinates for landscape
            view.frame = CGRectMake(appFrame.origin.y, appFrame.origin.x, appFrame.size.height, appFrame.size.width);
        }
        else {
            view.frame = appFrame;
        }

        [window addSubview:view];
    }
}