Wednesday, February 28, 2024
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ios – Flutter: Scrolling stucks in bizarre loop


I’ve a ListView in web page. Every merchandise is wrapped with StreamBuilder, which checks if merchandise is deleted or not. If merchandise is deleted, it can present SizedBox, in any other case, it can present the merchandise. Nevertheless, when the merchandise does get deleted and I attempt to scroll, it retains scrolling on the identical place. I’m posting code and video.

ListView.builder(
  // major: false,
  shrinkWrap: true,
  itemCount: upcomingEventsList?.size,
  keyboardDismissBehavior:
      ScrollViewKeyboardDismissBehavior.onDrag,
  itemBuilder: (context, listViewIndex) {
    var listViewEventsRecord =
        upcomingEventsList![listViewIndex];
    return StreamBuilder<DocumentSnapshot>(
        key: ValueKey(listViewEventsRecord.reference.id),
        stream: firestore
            .doc(listViewEventsRecord.reference.path)
            .snapshots(),
        builder: (context, snapshot) {
          if (snapshot.hasData && (!snapshot.information!.exists))
            return SizedBox.shrink();
          listViewEventsRecord = snapshot.hasData
              ? EventsRecord.fromSnapshot(snapshot.information!)
              : listViewEventsRecord;

          return FFAppState().isGridView
                  ? EventListBiggerWidget(
                      key: Key(
                        'Keygib_${listViewEventsRecord.reference.id}',
                      ),
                      occasion: listViewEventsRecord,
                    )
                  : Padding(
                      padding: const EdgeInsets.fromLTRB(
                          8, 0, 8, 0),
                      youngster: EventSmallListPublicWidget(
                        key: Key(
                          'Keylwy_${listViewEventsRecord.reference.id}',
                        ),
                        occasion: listViewEventsRecord,
                      ),
                    );
        });
  },
),

The video is right here: Google Drive



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