com.senior.fragments.HomeFragment.java Source code

Introduction

Here is the source code for com.senior.fragments.HomeFragment.java

Source

/*
*
*   JavNav 
*    a simple application for general use of the Texas A&M-Kingsville Campus. 
*    
*    Copyright (C) 2014  Manuel Gonzales Jr.
*
*    This program is free software: you can redistribute it and/or modify
*    it under the terms of the GNU General Public License as published by
*    the Free Software Foundation, either version 3 of the License, or
*    (at your option) any later version.
*
*    This program is distributed in the hope that it will be useful,
*    but WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*    GNU General Public License for more details.
*
*    You should have received a copy of the GNU General Public License
*    along with this program.  If not, see [http://www.gnu.org/licenses/].
*
*/
package com.senior.fragments;

import java.util.ArrayList;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.select.Elements;

import com.senior.javnav.R;

import android.graphics.Color;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.text.SpannableString;
import android.text.style.UnderlineSpan;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.TextView;

public class HomeFragment extends ListFragment {
    private ListView mListView;
    private View view;
    private TextView titletext;
    private Button reloadButton;
    private ProgressBar progress;

    public static int linkIndex;
    public static ArrayList<String> eventtitles;
    public static ArrayList<String> eventlinks = new ArrayList<String>();
    public static String TitleChosen;

    ArticleContent articles;

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        Log.i("HomeFrag", "Activity Created");
        super.onActivityCreated(savedInstanceState);
        getArticles();
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        Log.i("HomeFrag", "View Created");

        view = inflater.inflate(R.layout.home_fragment, container, false);

        titletext = (TextView) view.findViewById(R.id.calenderevents);

        SpannableString NewTitle = new SpannableString("Calendar Of Events");

        NewTitle.setSpan(new UnderlineSpan(), 0, NewTitle.length(), 0);

        titletext.setText(NewTitle);

        mListView = (ListView) view.findViewById(android.R.id.list);

        reloadButton = (Button) view.findViewById(R.id.refresh);
        reloadButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                getArticles();
            }

        });

        progress = (ProgressBar) view.findViewById(R.id.progress);

        return view;
    }

    private void getArticles() {
        reloadButton.setVisibility(View.INVISIBLE);
        progress.setVisibility(View.VISIBLE);
        new getDivs().execute();
    }

    private class getDivs extends AsyncTask<String, Void, ArrayList<String>> {
        boolean completed = false;

        protected ArrayList<String> doInBackground(String... params) {
            eventtitles = new ArrayList<String>();
            try {
                Document document = Jsoup.connect("http://www.tamuk.edu/").get();
                Elements calendar = document.select("div#calendar");
                Elements titles = calendar.select("a");
                Elements links = titles.select("[href]");

                for (int index = 0; index < titles.size() && index < links.size(); index++) {
                    if (links.get(index).toString().contains(".html")) {
                        if (isCancelled())
                            break;
                        eventtitles.add(titles.get(index).text());
                        eventlinks.add(links.get(index).attr("abs:href").toString());
                    }

                }
                completed = true;
            } catch (Exception e) {
                completed = false;
                e.printStackTrace();
            }
            return eventtitles;
        }

        @Override
        protected void onPostExecute(ArrayList<String> strings) {
            try {
                Log.i("home frag", "Results: " + eventtitles.size());
                mListView.setAdapter(
                        new ArrayAdapter(getActivity(), android.R.layout.simple_list_item_1, eventtitles) {
                            //Styling the items within the listview
                            @Override
                            public View getView(int position, View convertView, ViewGroup parent) {
                                View view = super.getView(position, convertView, parent);
                                TextView listItem = (TextView) view.findViewById(android.R.id.text1);
                                listItem.setBackgroundColor(Color.BLACK);
                                listItem.setTextColor(Color.WHITE);
                                return view;
                            }
                        });

                //If the information was not complete downloaded then it will bring back the
                //reload button
                if (completed) {
                    reloadButton.setVisibility(View.INVISIBLE);
                    progress.setVisibility(View.INVISIBLE);
                } else {
                    reloadButton.setVisibility(View.VISIBLE);
                    progress.setVisibility(View.INVISIBLE);
                }

            } catch (Exception e) {
                Log.i("Home", "Error on post execute");
            }
        }
    }

    public void onListItemClick(ListView mListView, View view, int position, long id) {
        ArticleContent articles = new ArticleContent();
        articles.loadArticleInfo(eventlinks.get(position), eventtitles.get(position));
        getFragmentManager().beginTransaction().addToBackStack(null).replace(R.id.container, articles).commit();
    }

}