Why inpector keeps methods assigned when changed from public to private

Question

When you make a public method, you can assign it in a unityEvent from inspector. But private ones can't be added or event shown in the list of listeners. But if you assigned a public method and then changed it to private. It can't be shown in inspector , however the last assigning will remains and the method can be fired. It's is now a private method. Why can another behavior invoke this method?

Answer 1

Best Answer

Answer by hk1ll3r · Jun 02, 2021 at 06:05 PM

This may be a bug or by design.

The methods in events are serialized and written to disk with the monobehaviour that contains them. You can assume that it gets written as a string value: MyClassRef.MyCallback. If you delete the method for example, the editor cannot find that method anymore and shows a "method is missing" method. This is useful because if you introduce compilation issues, the method stays there and will start working again when you get rid of the compile issue.

In the case of public vs private, you would expect this scenario to work: 1- assign a public method to a Unity event like button click 2- mark the method private 3- mark the method public again That's why the editor doesn't clear the private method. It could however show an error message like the case where you delete the method.

The methods are accessed through reflection at runtime, so the modifier can be bypassed there. Again Unity could block this but they haven't.

Add comment · Show 1 · Share

sanabelapps · Jun 04, 2021 at 09:34 AM 0

Share

Thanks. Yes It is by design https://issuetracker.unity3d.com/issues/button-onclick-list-is-not-modified-if-the-target-methods-accessibility-is-set-to-private

Answer 2

Answer by sanabelapps · Jun 04, 2021 at 09:30 AM

I reported it as a bug and they replied to me that they know about this issue and decided it is by design. https://issuetracker.unity3d.com/issues/button-onclick-list-is-not-modified-if-the-target-methods-accessibility-is-set-to-private

Add comment · Share

Why inpector keeps methods assigned when changed from public to private

2 Replies

Your answer

Follow this Question

Related Questions