Is it possible to collapse DragAndDropListExpanion on external event / trigger?

[cougardev]

Lets say you have multiple to do lists.
Is there a way to make to DragAndDropListExpanion collapse as soon as a certain event occurs?
(e.g. all to do's of the list are checked).
Unfortunately the list doesn't rebuild once the 'initiallyExpanded' variable changes from the outside.

Suggestions are highly appreciated. Thanks

[rubinbasha]

I am also in need of this feature. I was honestly taking it for granted that the feature was already working like this, but sadly it is not.

[rubinbasha]

@cougardev after doing some thinking I see a way to achieve this.
What you have to do is keep a local reference in memory List sectionTiles = [];
Preferably in the State object of the widget and then you can call .expand .collapse on items.
In my implementation when I get a call to build according to state change or framework reason, I first check if I have the DragAndDropListExpansion object in the list, based on the key I assign to it in creation time.

@philip-brink
there is a bug though in the library and that is related to just an exclamation mark ! that should not be there in the .collapse() function. since this is a very small fix, do you by any chance think you can solve and merge this quickly?

`
@ override
toggleExpanded() {
if (isExpanded) {
collapse();
} else {
expand();
}
}

@ override
collapse() {
if (!isExpanded) {
_expanded.value = false;
_expansionKey.currentState!.collapse();
}
}

@ override
expand() {
if (!isExpanded) {
_expanded.value = true;
_expansionKey.currentState!.expand();
}
}
`