The error says
'BoardSection' doesn't extend 'ExpandableListSection'.
Try using a type that is or is a subclass of 'ExpandableListSection'
I already extends the BoardSection with ExpandableListSection not ExpandableListSection,
in the documentation it said that I need diamond interface , for this case im not using String as my model class but I get this error
I want to create sectioned list with String as header title and BoardWithCategory as the child
Here is my code
BoardWithcategory model that i want to use as child
The board section,
How I use this in a page
And here is the error
The error says 'BoardSection' doesn't extend 'ExpandableListSection'.
Try using a type that is or is a subclass of 'ExpandableListSection'
I already extends the BoardSection with ExpandableListSection not ExpandableListSection,
in the documentation it said that I need diamond interface , for this case im not using String as my model class but I get this error