models.newArrivalFragment.java Source code

Introduction

Here is the source code for models.newArrivalFragment.java

Source

package models;
/*
~ *******************************************************************************
~   Copyright (c) 2013-2014 Daniel Lin, Kamal Chaya, Sean Penney, and Daniel Chuang 
~   
~   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.
~  *****************************************************************************
*/

import com.example.t_danbubbletea.R;

import java.util.concurrent.ExecutionException;

import models.ApiConnector;
import models.DatabaseTeaInfo;
import models.TeaViewFragment;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import TabAdapterPackage.GridViewCustomAdapter;
import android.app.Fragment;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.FragmentManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.AdapterView.OnItemClickListener;

public class newArrivalFragment extends Fragment {

    DatabaseTeaInfo teaInfo = new DatabaseTeaInfo();

    private boolean mShowingBack = false;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_newarrival, container, false);
        getActivity().setTitle("New Arrivals!");

        //animation when enter home page
        rootView.startAnimation(AnimationUtils.loadAnimation(getActivity(), R.anim.image_click));

        //download the URL's asynchronously (put the info in the teaInfo object)
        try {
            teaInfo = new GetTeaInfoTask().execute(new ApiConnector()).get();
        } catch (InterruptedException e) {
            e.printStackTrace();
        } catch (ExecutionException e) {
            e.printStackTrace();
        }
        //make the gridview and set its adapter
        GridView gridView = (GridView) rootView.findViewById(R.id.grid_view_new_arrival);
        GridViewCustomAdapter gvAdapter = new GridViewCustomAdapter(getActivity(), teaInfo.imageURLs,
                teaInfo.teaNames);
        gridView.setAdapter(gvAdapter);

        //onclick listener for gridview
        gridView.setOnItemClickListener(new OnItemClickListener() {

            public void onItemClick(AdapterView<?> parent, View v, int position, long id) {

                Bundle teaViewArgs = new Bundle();
                teaViewArgs.putString("teaName", teaInfo.teaNames.get(position));
                teaViewArgs.putString("teaImgUrl", teaInfo.imageURLs.get(position));
                teaViewArgs.putString("teaDesc", teaInfo.teaDescriptions.get(position));
                Fragment newFragment = new TeaViewFragment();
                newFragment.setArguments(teaViewArgs);

                if (newFragment != null) {
                    flipCard(newFragment);
                }
            }

            private void flipCard(Fragment newFragment) {
                mShowingBack = true;
                FragmentManager fragmentManager = getFragmentManager();
                fragmentManager.beginTransaction()
                        .setCustomAnimations(R.anim.card_flip_right_in, R.anim.card_flip_right_out,
                                R.anim.card_flip_left_in, R.anim.card_flip_left_out)
                        .replace(R.id.frame_container, newFragment).addToBackStack(null).commit(); // create new fragment and allow user to go back to previous fragment          
            }

        });

        return rootView;
    }

    /*
    * Asynchronously query database for all the new tea tuples, and get the URL's from
    * the URL field
    */
    private class GetTeaInfoTask extends AsyncTask<ApiConnector, Long, DatabaseTeaInfo> {

        DatabaseTeaInfo teaInfoFromDb = new DatabaseTeaInfo();

        @Override
        protected DatabaseTeaInfo doInBackground(ApiConnector... arg0) {
            //Query database to get tuples in json format
            JSONArray jsonArrayTeas = arg0[0].GetAllTeas();
            //iterate through json array and populate database tea info object
            for (int i = 0; i < jsonArrayTeas.length(); i++) {
                JSONObject json = null;

                try {
                    json = jsonArrayTeas.getJSONObject(i);

                    /*
                     * The URL is a little FUBAR'ed when it is returned in JSON 
                     * format with weird backslashes and forward slashes. This bit
                     * of code makes everything a forward slash, making it a valid URL.
                     * 
                     * Here, we only want the 'new' teas, so we only put into the array
                     * the tea objects whose new field set to "1" in the database.
                     */

                    if (json.getInt("new") == 1) {
                        String parsedURL = ("http://" + json.getString("imageURL")).replace("\\", "");
                        teaInfoFromDb.imageURLs.add(i, parsedURL);
                        teaInfoFromDb.teaDescriptions.add(i, json.getString("desc"));
                        teaInfoFromDb.teaNames.add(i, json.getString("name"));
                        //teaInfoFromDb.teaBitmaps.add(i, imageLoader.getBitmap(parsedURL));
                        //Log.d(TAG, json.getString("name"));
                    }

                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
            //return the database teainfo object so image urls can be used by imageloader
            return teaInfoFromDb;
        }

    }
}