Can't Get Method Notifydatasetchanged

the context : i have 2 class, a class Listactivity and another class AudioListActivity in wich i have define a custom arrayadapter. So in the ListActivity with oncreate, i call on

Solution 1:

ListAdapter has no member notifyDataSetChanged(). You have to cast your MyListAdapter to ArrayAdapter, to access it.

((ArrayAdapter<DonneesListeAudio>) MyListAdapter).notifyDataSetChanged();

check for typo