Android example source code file (SuggestionProvider.java)

This example Android source code file (SuggestionProvider.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

android, app, content, contentprovider, contentvalues, database, illegalargumentexception, matrixcursor, net, network, override, search_suggestions, string, suggestionprovider, tag, unknown, unsupportedoperationexception, urimatcher, url, xxxxxxxxxxxxxxxxx

The SuggestionProvider.java Android example source code

/*
 * Copyright (C) 2009 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.app;

import android.app.SearchManager;
import android.content.ContentProvider;
import android.content.ContentValues;
import android.content.Intent;
import android.content.UriMatcher;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.net.Uri;

/** Simple test provider that runs in the local process.
 *
 * Used by {@link SearchManagerTest}.
 */
public class SuggestionProvider extends ContentProvider {
    private static final String TAG = "SuggestionProvider";

    private static final int SEARCH_SUGGESTIONS = 1;

    private static final UriMatcher sURLMatcher = new UriMatcher(
            UriMatcher.NO_MATCH);

    static {
        sURLMatcher.addURI("*", SearchManager.SUGGEST_URI_PATH_QUERY,
                SEARCH_SUGGESTIONS);
        sURLMatcher.addURI("*", SearchManager.SUGGEST_URI_PATH_QUERY + "/*",
                SEARCH_SUGGESTIONS);
    }

    private static final String[] COLUMNS = new String[] {
            "_id",
            SearchManager.SUGGEST_COLUMN_TEXT_1,
            SearchManager.SUGGEST_COLUMN_INTENT_ACTION,
            SearchManager.SUGGEST_COLUMN_QUERY
    };

    public SuggestionProvider() {
    }

    @Override
    public boolean onCreate() {
        return true;
    }

    @Override
    public Cursor query(Uri url, String[] projectionIn, String selection,
            String[] selectionArgs, String sort) {
        int match = sURLMatcher.match(url);
        switch (match) {
            case SEARCH_SUGGESTIONS:
                String query = url.getLastPathSegment();
                MatrixCursor cursor = new MatrixCursor(COLUMNS);
                String[] suffixes = { "", "a", " foo", "XXXXXXXXXXXXXXXXX" };
                for (String suffix : suffixes) {
                    addRow(cursor, query + suffix);
                }
                return cursor;
            default:
                throw new IllegalArgumentException("Unknown URL: " + url);
        }
    }

    private void addRow(MatrixCursor cursor, String string) {
        long id = cursor.getCount();
        cursor.newRow().add(id).add(string).add(Intent.ACTION_SEARCH).add(string);
    }

    @Override
    public String getType(Uri url) {
        int match = sURLMatcher.match(url);
        switch (match) {
            case SEARCH_SUGGESTIONS:
                return SearchManager.SUGGEST_MIME_TYPE;
            default:
                throw new IllegalArgumentException("Unknown URL: " + url);
        }
    }

    @Override
    public int update(Uri url, ContentValues values, String where, String[] whereArgs) {
        throw new UnsupportedOperationException("update not supported");
    }

    @Override
    public Uri insert(Uri url, ContentValues initialValues) {
        throw new UnsupportedOperationException("insert not supported");
    }

    @Override
    public int delete(Uri url, String where, String[] whereArgs) {
        throw new UnsupportedOperationException("delete not supported");
    }
}