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

Android Support library v23 added Snackbar.Callback which you can use to listen if the snackbar was dismissed by user or timeout.

Example borrowed from astinxs post:

Snackbar.make(getView(), "Hi there!", Snackbar.LENGTH_LONG).setCallback( new Snackbar.Callback() {
            @Override
            public void onDismissed(Snackbar snackbar, int event) {
                switch(event) {
                    case Snackbar.Callback.DISMISS_EVENT_ACTION:
                        Toast.makeText(getActivity(), "Clicked the action", Toast.LENGTH_LONG).show();
                        break;
                    case Snackbar.Callback.DISMISS_EVENT_TIMEOUT:
                        Toast.makeText(getActivity(), "Time out", Toast.LENGTH_LONG).show();
                        break;
                }
            }

            @Override
            public void onShown(Snackbar snackbar) {
                Toast.makeText(getActivity(), "This is my annoying step-brother", Toast.LENGTH_LONG).show();
            }
        }).setAction("Go away!", new View.OnClickListener() {
            @Override
            public void onClick(View v) {

            }
        }).show();