CODEWITHSUNDEEP
iosuiviewcontrollerrootviewcontroller
vrwim
vrwim

Reputation: 14320

Why does my app rotate without animation?

I have an app with an animated splashscreen and a main interface.

To transition from the splashscreen to the main interface I used this code:

presentViewController(mainViewController, true) {
    UIApplication.sharedApplication.keyWindow.rootViewController = mainViewController
}

But apparently this method ruins autorotation (took me a while to find that one). Now I have the issue that this autorotation is not with animation.

I guess this is not with animation because the old viewcontroller still lives below the other viewcontroller and it just forwards the new orientation.

How can I properly transition from one viewcontroller to the next while being able to destroy the old viewcontroller and keep rotation?

Edit: I noticed that my homescreen rotates when I close my app (from its startup orientation to the orientation the app was in when I closed it)

Upvotes: 0

Views: 174

Answers (2)

vrwim
vrwim

Reputation: 14320

In addition to what Kemal said, I have found my specific issue:

I don't really understand why this gives that problem. I have a storyboard that is set in the Info.plist as the main interface (I ignored this, because I don't need it). In my AppDelegate.finishedLaunching I create a new window and set its root view controller, which I then set as key window. Removing either the window setting in AppDelegate or Info.plist resolves the issue.

Upvotes: 2

Kemal Can Kaynak
Kemal Can Kaynak

Reputation: 1660

According to UIWindow documentation;

If the window has an existing view hierarchy, the old views are removed before the new ones are installed.

Source Link -> here

So, system automatically destroy while decide to no longer need your first RootViewController. You can handle transition like this;

if var topRootController = UIApplication.sharedApplication().keyWindow?.rootViewController {
    while (topRootController.presentedViewController != nil) {
        topRootController = topRootController.presentedViewController!
    }
    topRootController.presentViewController(homeController, animated: true, completion: nil)
}

Upvotes: 1

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