Groupie: Remove children from expandable group
I'm opening this question gain since #107 was closed without a solution.
I couldn't manage to tie together the ExpandableGroup with the UpdatingGroup to add/remove items from a group.
Any help will be wellcome!
Thanks
rpedretti
All 3 comments
I'm not sure exactly what you're trying to achieve, but it's possible that it's related to this bug. https://github.com/lisawray/groupie/issues/124
Generally, if I expect updates to the contents of an ExpandableGroup, I add an UpdatingGroup as its only child and put all the expanded content into the UpdatingGroup directly. Does that help?
lisawray
on 29 Oct 2017
Wish I came across this sooner! For anyone else in a similar situation:
It looks like UpdatingGroup is now deprecated, and replaced by Sections. The Kotlin example (non-databinding) includes an example of removing items from a Section by swipe. As Lisa mentioned, you can add the Section directly to your adapter, or to an ExpandableGroup.
I was following the databinding example, where child groups were directly added to the ExpandableGroup. It wasn't until later that I tried removing groups, and realized ExpandableGroup doesn't support this. You also can't override the remove method, since the children list in ExpandableGroup is private and not protected. I ended copying ExpandableGroup into a new class, where remove() is implemented, but this is not the correct way.
I think it might be helpful to clarify this in the documentation, perhaps even with this specific example (add a Section which can be updated, to an ExpandableGroup which does not support removing items). The library itself is fantastic, as long as it's used properly.
edwinckc
on 1 Apr 2018
closing as this functionality exists in ExpandableGroup
ValCanBuild
on 12 Aug 2019
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Most helpful comment
Wish I came across this sooner! For anyone else in a similar situation:
It looks like UpdatingGroup is now deprecated, and replaced by Sections. The Kotlin example (non-databinding) includes an example of removing items from a Section by swipe. As Lisa mentioned, you can add the Section directly to your adapter, or to an ExpandableGroup.
I was following the databinding example, where child groups were directly added to the ExpandableGroup. It wasn't until later that I tried removing groups, and realized ExpandableGroup doesn't support this. You also can't override the remove method, since the children list in ExpandableGroup is private and not protected. I ended copying ExpandableGroup into a new class, where remove() is implemented, but this is not the correct way.
I think it might be helpful to clarify this in the documentation, perhaps even with this specific example (add a Section which can be updated, to an ExpandableGroup which does not support removing items). The library itself is fantastic, as long as it's used properly.