private void _handleDelete(LeaveBehindItem item)
{
setState(() => { leaveBehindItems.Remove(item); });
_scaffoldKey.currentState.showSnackBar(new SnackBar(
content: new Text($"You deleted item {item.index}"),
action: new SnackBarAction(
label: "UNDO",
onPressed: () => { handleUndo(item); }
)
));
}
private int lowerBound(List <LeaveBehindItem> items, LeaveBehindItem item)
{
items.Sort();
for (int i = 0; i < items.Count; i++)
{
if (item.CompareTo(items[i]) >= 0)
{
return(i);
}
}
return(items.Count - 1);
}
public _LeaveBehindListItem(
Key key = null,
LeaveBehindItem item = null,
onArchiveFunc onArchive = null,
onDeleteFunc onDelete = null,
DismissDirection?dismissDirection = null,
bool?confirmDismiss = null
) : base(key: key)
{
this.item = item;
this.onArchive = onArchive;
this.onDelete = onDelete;
this.dismissDirection = dismissDirection;
this.confirmDismiss = confirmDismiss;
}
private void handleUndo(LeaveBehindItem item)
{
int insertionIndex = lowerBound(leaveBehindItems, item);
setState(() => { leaveBehindItems.Insert(insertionIndex, item); });
}