MarqueeLabel won't scroll when it is used on UIWindow

[xiongcai]

Usage Details

• Language:
• Platform:
• iOS Version:

Expected Behavior

Actual Behavior

Steps to Reproduce the Problem

1. when MarqueeLabel is added to UIWindow, function labelReadyForScroll return NO.
2. When UIViewController *viewController = [self firstAvailableViewController]; viewController is nil,
3. MarqueeLabel won't scroll

[cbpowell]

Hi! So that is expected behavior as you can see on this line of code, although I don’t completely remember why it’s necessary - and it may not be anymore.

As best I remember, I thought it didn’t make sense to fire the animations if the label isn’t attached to a view controller. However if you have a use case where it works just fine, I’m totally open to supporting it!

If you disable those few lines of codes, does MarqueeLabel work fine in your project?