Question regarding Delegated Property deprecation

[AlexTrotsenko]

I have noticed, that now Delegated Property are marked as Deprecated in the Readme's Overview:
https://github.com/wada811/ViewBinding-ktx/blob/master/README.md#overview

But looks like it's the only place where it's done. In the Delegated Property section below or in the source code they are not marked as Depricated either.

If they are deprecated - I am wondered what's the reason? Is it because of the IllegalStateException in the Fragment case?
If so - what is the current and the future state of these api?
Are you planing to remove them or make @RequiresOptIn ?

Btw, I am wondered if approach of using Delegated Property with Fragments has any draw-backs comparing to using the official approach described at https://developer.android.com/topic/libraries/view-binding#fragments

P.S. I acknowledge, that withBinding approach is obviously preferable solution for the new Activities/Fragments, but migrating to it in the old classes might be an effort depending on the side of the code base.

[wada811]

The deprecation statement in the Readme might be too strong.
As you may have noticed, the Delegated Property was temporarily marked as @Deprecated because the withBinding approach was the preferred solution. However, due to the high migration cost for older classes, the decision to officially deprecate it was reconsidered.

The reason for deprecation is the IllegalStateException in the case of Fragments. However, there are no plans to remove, mark as @Deprecated, or use @RequiresOptIn for Delegated Properties, considering the high migration cost.

Comparing Delegated Property with the official approach, there are few drawbacks to using Delegated Property. If there is a possibility of accessing the binding outside the onCreateView and onDestroyView methods, in the official approach, you would use the _binding variable. However, with Delegated Property, using the binding variable casually might lead to a more frequent occurrence of IllegalStateException.

It's worth noting that even in the official approach, if you use the binding variable without considering the IllegalStateException, a similar exception can occur. Therefore, I don't believe the drawbacks of Delegated Property are significant.

[wada811]

I would like to write withBinding as recommended. And I think I'll stop marking Delegated Property as deprecated in the Readme.