Change color behind app on rotation

Question

When an iOS app rotates it will reveal a black background when the app is between portrait and landscape. Is it possible to change this color from the default black to white

Answer 1

I have done something similar but I couldn't find the source now, but here is the idea:

Create and add a significantly larger view as backing view and center it.

Add the UIWebView as subview of this large view whose background is white.

Re-position the center of the UIWebView, too.

Answer 2

I got the same issue. As I understand that you want to remove the black background. The easiest solution that I used is set you window clipsToBounds = true instead of your rootViewController.

window?.clipsToBounds = true

Answer 3

You can solve the problem by adding empty general view controller with oversized bounds into your root viewController and make it the lowest in the view hierarchy:

CGFloat length = 2*MAX(rootViewController.view.bounds.size.height, rootViewController.view.bounds.size.width);

UIView *oversizedBackgroundView = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, length, length)];
oversizedBackgroundView.center = vc.view.center;
oversizedBackgroundView.backgroundColor = [UIColor whiteColor];
rootViewController.view.clipsToBounds = NO;
[rootViewController.view addSubview:oversizedBackgroundView];
[rootViewController.view sendSubviewToBack:oversizedBackgroundView];

self.window.rootViewController = rootViewController;
[self.window makeKeyAndVisible];

The key point here is to set clipsToBounds to NO

Answer 4

You can do this way:

Add a UIViewController and set it as initial VC (in screenshot it is MainVC).
Add two UIViewContainer: first for holding your background view , and second for your other vcs.
Override viewDidLayoutSubviews in implementation file of background VC (in this case the .m file of red VC)

- (void)viewDidLayoutSubviews
{
    [super viewDidLayoutSubviews];

    //Some hardcode :)
    self.view.frame = CGRectMake(-100, -100, 1136, 1136);
}

After doing this you will have something like this:

I know this is not the best solution, but you can do this way until you find the best one.