|
|
@@ -140,9 +140,13 @@ class _LazyGroupGalleryState extends State<LazyGroupGallery> {
|
|
|
|
|
|
//When items are updated in a LazyGroupGallery, only it rebuilds with the
|
|
|
//new state of _files which is a state variable in it's state object.
|
|
|
- //widget.files does not change as the Widget itself is immutable. So
|
|
|
- //to create a new Widget of LazyLoadingGallery with the updated
|
|
|
- //widget.files, we have to call setState from an ancestor state object.
|
|
|
+ //widget.files is not updated. Calling setState from it's ancestor
|
|
|
+ //state object 'Gallery' creates a new LazyLoadingGallery widget with
|
|
|
+ //updated widget.files
|
|
|
+
|
|
|
+ //If widget.files is kept in it's old state, the old state will come
|
|
|
+ //up when scrolled down and back up to the group.
|
|
|
+
|
|
|
//[galleryState] will never be null except when LazyLoadingGallery is
|
|
|
//used without Gallery as an ancestor.
|
|
|
final galleryState = context.findAncestorStateOfType<GalleryState>();
|
ashilkn