com.vagabond.dealhunting.ui.SearchActivity.java Source code

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Here is the source code for com.vagabond.dealhunting.ui.SearchActivity.java

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package com.vagabond.dealhunting.ui;

import android.app.SearchManager;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.SearchView;
import android.text.TextUtils;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;

import com.vagabond.dealhunting.R;
import com.vagabond.dealhunting.adapter.SearchAdapter;
import com.vagabond.dealhunting.data.DealContract;

/*
 * Copyright (C) 2016 SkyUnity (HoaNV)
 *
 * 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.
 */
public class SearchActivity extends AppCompatActivity
        implements LoaderManager.LoaderCallbacks<Cursor>, AdapterView.OnItemClickListener {
    private static final String ARG_QUERY = "query";
    private static final String SCREEN_LABEL = "Search";
    private static final int COLUMN_PROMOTION_ID_INDEX = 0;
    private SearchView mSearchView;
    private String mQuery = "";
    private ListView mSearchResults;
    private SearchAdapter mResultsAdapter;

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

        mSearchView = (SearchView) findViewById(R.id.search_view);
        setupSearchView();
        mSearchResults = (ListView) findViewById(R.id.search_results);
        mResultsAdapter = new SearchAdapter(this, null, 0);
        mSearchResults.setAdapter(mResultsAdapter);
        mSearchResults.setOnItemClickListener(this);

        String query = getIntent().getStringExtra(SearchManager.QUERY);
        query = query == null ? "" : query;
        mQuery = query;

        if (mSearchView != null) {
            mSearchView.setQuery(query, false);
        }
    }

    private void setupSearchView() {
        SearchManager searchManager = (SearchManager) getSystemService(SEARCH_SERVICE);
        mSearchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
        mSearchView.setIconified(false);
        // Set the query hint.
        mSearchView.setQueryHint(getString(R.string.search_hint));
        mSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String s) {
                mSearchView.clearFocus();
                return true;
            }

            @Override
            public boolean onQueryTextChange(String s) {
                searchFor(s);
                return true;
            }
        });

        if (!TextUtils.isEmpty(mQuery)) {
            mSearchView.setQuery(mQuery, false);
        }
    }

    public void dismiss(View view) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {

        } else {
            ActivityCompat.finishAfterTransition(this);
        }
    }

    private void searchFor(String query) {
        Bundle args = new Bundle(1);
        if (query == null) {
            query = "";
        }
        args.putString(ARG_QUERY, query);

        if (TextUtils.equals(query, mQuery)) {
            getSupportLoaderManager().initLoader(SearchPromotionQuery.TOKEN, args, this);
        } else {
            getSupportLoaderManager().restartLoader(SearchPromotionQuery.TOKEN, args, this);
        }
        mQuery = query;
    }

    @Override
    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
        return new CursorLoader(this, DealContract.PromotionEntry.CONTENT_URI, SearchPromotionQuery.PROJECTION,
                null, new String[] { args.getString(ARG_QUERY) }, null);
    }

    @Override
    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
        mResultsAdapter.swapCursor(data);
        mSearchResults.setVisibility(data.getCount() > 0 ? View.VISIBLE : View.GONE);
    }

    @Override
    public void onLoaderReset(Loader<Cursor> loader) {
        mResultsAdapter.swapCursor(null);
    }

    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
        Cursor cursor = mResultsAdapter.getCursor();
        cursor.moveToPosition(position);

        Uri dealUri = DealContract.PromotionEntry.buildPromotionUri(cursor.getInt(COLUMN_PROMOTION_ID_INDEX));

        Intent intent = new Intent(this, DetailActivity.class);
        intent.setData(dealUri);
        startActivity(intent);
    }

    private interface SearchPromotionQuery {
        int TOKEN = 0x4;
        String[] PROJECTION = DealContract.PromotionEntry.DEFAULT_PROJECTION;
    }
}