Android SearchRecentSuggestions - suggestions do not get displayed when typing in SearchView

I have a working search widget and want to add search history suggestions. I followed the Android tutorial (http://developer.android.com/guide/topics/search/adding-recent-query-suggestions.html), and while the search still works, no suggestions are being displayed. Here is my code:

1. Content provider

   package com.mypackage;
   
   import android.content.SearchRecentSuggestionsProvider;
   
   public class SearchHistoryProvider extends SearchRecentSuggestionsProvider {
       public final static String AUTHORITY = SearchHistoryProvider.class.getName();
       public final static int MODE = DATABASE_MODE_QUERIES;
   
       public SearchHistoryProvider() {
           setupSuggestions(AUTHORITY, MODE);
       }
   }
   

2. Declaring provider in Manifest

   <provider 
       android:name=".SearchHistoryProvider"
       android:authorities="com.mypackage.SearchHistoryProvider">
   </provider>
   

3. Searchable configuration

   <?xml version="1.0" encoding="utf-8"?>
   <searchable xmlns:android="http://schemas.android.com/apk/res/android"
       android:label="@string/app_name"
       android:hint="@string/search_hint"
       android:voiceSearchMode="showVoiceSearchButton|launchRecognizer"
       android:searchSuggestAuthority="com.mypackage.SearchHistoryProvider"
       android:searchSuggestSelection=" ?">
   </searchable>
   

4. Saving the queries to the content provider (in my searchable Activity)

   private void handleIntent(Intent intent) {
   if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
   
       String query = intent.getStringExtra(SearchManager.QUERY);
       SearchRecentSuggestions suggestions = new SearchRecentSuggestions(this,
                           SearchHistoryProvider.AUTHORITY, SearchHistoryProvider.MODE);
       suggestions.saveRecentQuery(query, null);
   
       // Colla