In a snackbar action, how can I be sure it's safe to permanently delete a soft-deleted record from the database?

Question

I am using Snackbar in android and I have implemented an action so that user can undo the action (the action is clearing all the items in the listview).Removing and adding the i

Answer 1

If you don't want to delete the record from database immediately, try this:

// Backup the item for undo
int itemIndex = viewHolder.getAdapterPosition();
Item item = adapter.getItem(itemIndex);

// Delete only from the adapter
adapter.removeItem(itemIndex);

Snackbar.make(getView(), "Item deleted", LENGTH_LONG)
        .addCallback(new BaseCallback() {
            public void onDismissed(Snackbar transientBottomBar, int event) {
                if (event != DISMISS_EVENT_ACTION) {
                    // Dismiss wasn't because of tapping "UNDO"
                    // so here delete the item from databse
                }
            }
        })
        .setAction("UNDO", v -> adapter.addItem(item, itemIndex))
        .show();