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Fixed
Votes
1
Found in [Package]
Issue ID
1030987
Regression
No
[UI] CanvasGroup Interactable field value is not applied on element creation when element is not a direct child of CanvasGroup
To reproduce:
1. Open any project
2. Create a UI panel named "GroupParent" and add CanvasGroup component
3. Uncheck the CanvasGroup Interactable field (make it non interactable)
4. Add a Button child to "GroupParent" - child becomes non interactable
5. Add an empty child to "GroupParent" and then add a Button child to the empty child
Expected: all UI elements, that are under CanvasGroup hierarchy become greyed out due to Interactable field value being false
Actual: UI elemets, that are not direct children of the CanvasGroup element do not have the Canvas group values applied on creation
Reproduced in: 2017.2.3f1, 2017.4.3f1, 2018.1.0f2, 2018.2.0b3
Note: entering Play mode fixes the issue, can also be fixed when changing any Canvas Group setting forcing it to reapply the settings
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paulatwarp
Jul 31, 2018 09:09
This also happens if you add a button to an existing CanvasGroup while the game is running. I submitted an issue and it's been marked a duplicate of this.
Here's my test project:
https://github.com/paulsinnett/CanvasGroupBug
A fix for this issue is to send the message OnCanvasGroupChanged to the newly created Button.
I found this issue by tracking down a bug in some menu code where buttons would apparently lose focus. What happened was the UI navigating to "inactive" buttons on hidden canvases.