content/contacts/BasicContactables/BasicContactables/src/main/java/com/example/android/basiccontactables/MainActivity.java

/*
 * Copyright (C) 2012 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 com.example.android.basiccontactables;

import android.app.Activity;
import android.app.SearchManager;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.widget.SearchView;

/**
 * Simple one-activity app that takes a search term via the Action Bar
 * and uses it as a query to search the contacts database via the Contactables
 * table.
 */
public class MainActivity extends Activity {

    public static final int CONTACT_QUERY_LOADER = 0;
    public static final String QUERY_KEY = "query";


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        if (getIntent() != null) {
            handleIntent(getIntent());
        }
    }

    @Override
    protected void onNewIntent(Intent intent) {
        handleIntent(intent);
    }

    /**
     * Assuming this activity was started with a new intent, process the incoming information and
     * react accordingly.
     * @param intent
     */
    private void handleIntent(Intent intent) {
        // Special processing of the incoming intent only occurs if the if the action specified
        // by the intent is ACTION_SEARCH.
        if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
            // SearchManager.QUERY is the key that a SearchManager will use to send a query string
            // to an Activity.
            String query = intent.getStringExtra(SearchManager.QUERY);

            // We need to create a bundle containing the query string to send along to the
            // LoaderManager, which will be handling querying the database and returning results.
            Bundle bundle = new Bundle();
            bundle.putString(QUERY_KEY, query);

            ContactablesLoaderCallbacks loaderCallbacks = new ContactablesLoaderCallbacks(this);

            // Start the loader with the new query, and an object that will handle all callbacks.
            getLoaderManager().restartLoader(CONTACT_QUERY_LOADER, bundle, loaderCallbacks);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);

        // Associate searchable configuration with the SearchView
        SearchManager searchManager =
                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
        SearchView searchView =
                (SearchView) menu.findItem(R.id.search).getActionView();
        searchView.setSearchableInfo(
                searchManager.getSearchableInfo(getComponentName()));

        return true;
    }
}