First of all, thank you all for your (future) responses :)
Below explanation of my problem:
I have my main Activity named MainActivity and I use a Fragment inside it. So, my Fragment contains a SearchView and a ListView which will contains suggestions depending on user's input... Please notice that I don't use it in the ActionBar but in my layout file...
Here is fragment_board_menu.xml, xml file lied to my Fragment BoardMenuFragment :
<android.support.v7.widget.SearchView
android:id="@+id/board_searchView"
android:layout_marginLeft="3dp"
android:layout_marginStart="3dp"
android:background="@color/green"
app:searchIcon="@drawable/ic_search"
app:searchHintIcon="@drawable/ic_search"
app:closeIcon="@drawable/ic_close"
app:defaultQueryHint="@string/create_newboard_hint"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<ListView
android:layout_below="@+id/board_searchView"
android:background="@drawable/listview_border"
android:layout_marginBottom="@dimen/listview_border_marginBottom"
android:layout_marginLeft="3dp"
android:layout_marginStart="3dp"
android:id="@+id/board_listView"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
He is BoardMenuFragment.java, my Fragment java file :
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_board_menu, container, false);
setupSearchView(view);
// LISTVIEW
// TODO This view is an example, don't forget to delete it
values = new ArrayList<>();
values.add("pomme");
values.add("poire");
values.add("banane");
values.add("cerise");
values.add("citron");
adapter = new ArrayAdapter<>(getActivity(), android.R.layout.simple_expandable_list_item_1, android.R.id.text1, values);
board_listView.setAdapter(adapter);
return view;
}
private void setupSearchView(View view) {
SearchManager searchManager = (SearchManager) getActivity().getSystemService(Context.SEARCH_SERVICE);
final SearchView searchView = (SearchView) view.findViewById(R.id.searchView);
SearchableInfo searchableInfo = searchManager.getSearchableInfo(getActivity().getComponentName());
searchView.setSearchableInfo(searchableInfo);
}
But I have an exception which is :
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.SearchView.setSearchableInfo(android.app.SearchableInfo)' on a null object reference
So my question is : is it possible to use SearchView in Fragment using SearchManager and SearchableInfo because I tried to do it using setOnQueryTextListener and it works but I don't think that is the best way to do it because I saw a lot of tutorials where you create a SearchableActivity...
