Android SearchRecentSuggestions - 在SearchView中输入时不会显示建议

Question

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); // Collapse the search view as a search is performed MenuItem searchItem = mMenu.findItem(R.id.search); SearchView searchView = (SearchView) mMenu.findItem(R.id.search).getActionView(); searchItem.collapseActionView(); searchView.setQuery("", false); // send the query to the global search activity for loading the data Intent globalSearchIntent = new Intent(this, GlobalSearchFragmentActivity.class); GroceryOTGUtils.copyIntentData(intent, globalSearchIntent); globalSearchIntent.putExtra(GlobalSearchFragmentActivity.GLOBAL_SEARCH, true); startActivity(globalSearchIntent); } } 

Everything works fine, except the suggestions do not actually show up (the search looks the same as before I added them). Any help would be greatly appreciated!

Answer 1

I think the problem was, that the declaration of the SearchHistoryProvider in the Manifest.xml was wrong.

android:name=".SearchHistoryProvider"

Writing .$NAME is a shorthand for $DEFAULTPACKAGE.$NAME, so if your $DEFAULTPACKAGE is 'com.myapp' und you write .SearchHistoryProvider as the android:name of your Provider, Android will simply not find it, as it is located in com.mypackage, as the first line of the following code indicates.

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);
    }
}