app/src/main/java/de/dhbwloe/campusapp/fragments/News.java

   1 package de.dhbwloe.campusapp.fragments;
   2
   3
   4 import android.os.Bundle;
   5 import android.support.v4.app.Fragment;
   6 import android.support.v4.app.FragmentActivity;
   7 import android.view.LayoutInflater;
   8 import android.view.View;
   9 import android.view.ViewGroup;
  10 import android.widget.AdapterView;
  11 import android.widget.CheckBox;
  12 import android.widget.CompoundButton;
  13 import android.widget.ListView;
  14
  15 import java.util.Collections;
  16 import java.util.Comparator;
  17 import java.util.Date;
  18 import java.util.ArrayList;
  19
  20 import de.dhbwloe.campusapp.CampusAppFragment;
  21 import de.dhbwloe.campusapp.R;
  22 import de.dhbwloe.campusapp.news.NewsItem;
  23 import de.dhbwloe.campusapp.search.SearchIndices;
  24 import de.dhbwloe.campusapp.vorlesungen.CourseEvent;
  25
  26 /**
  27  * A simple {@link Fragment} subclass.
  28  */
  29 public class News extends CampusAppFragment {
  30     /* implement this for search results ;) */
  31     public static SearchIndices[] GetSearchIndices() {
  32         return new SearchIndices[] {
  33                 new SearchIndices("News", true) {{
  34                     setUpdateTime(1);
  35                     setTarget("#News");
  36                     setTitle(R.string.search_news_title);
  37                     setDescription(R.string.search_news_description);
  38                     addKeyWord(R.string.search_news_keywords);
  39                 }},
  40         };
  41     }
  42
  43     private View view;
  44     private NewsListAdapter listAdapter;
  45     protected ArrayList<NewsListItem> newsListItems = new ArrayList<NewsListItem>();
  46
  47     @Override
  48     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  49                              Bundle savedInstanceState) {
  50         view = inflater.inflate(R.layout.fragment_news, container, false);
  51         AppContext.setTitle(AppContext.getResString(R.string.news_title));
  52
  53         ListView newsItemsList = (ListView) view.findViewById(R.id.newsListView);
  54         listAdapter = new NewsListAdapter(view.getContext(), R.layout.fragment_news_item, newsListItems);
  55         newsItemsList.setAdapter(listAdapter);
  56
  57         CompoundButton.OnCheckedChangeListener changeListener = new CompoundButton.OnCheckedChangeListener() {
  58             @Override
  59             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
  60                 refreshNewsItems();
  61             }
  62         };
  63         ((CheckBox) view.findViewById(R.id.showDhbwNews)).setOnCheckedChangeListener(changeListener);
  64         ((CheckBox) view.findViewById(R.id.showStuvNews)).setOnCheckedChangeListener(changeListener);
  65         ((CheckBox) view.findViewById(R.id.showStuvEvents)).setOnCheckedChangeListener(changeListener);
  66
  67         newsItemsList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
  68             @Override
  69             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
  70                 NewsListItem item = newsListItems.get(position);
  71                 if (item == null)
  72                     return;
  73
  74                 String link = item.getLink();
  75                 if(link != null) {
  76                     Bundle args = new Bundle();
  77                     args.putString("url", link);
  78                     AppContext.getNavigationManager().navigatePage("WebBrowser", args, false);
  79                 }
  80             }
  81         });
  82
  83         return view;
  84     }
  85
  86     @Override
  87     public void onResume() {
  88         super.onResume();
  89         if(view != null)
  90             refreshNewsItems();
  91     }
  92
  93     protected void refreshNewsItems() {
  94         newsListItems.clear();
  95
  96         CheckBox showDhbwNewsChkbok = (CheckBox) view.findViewById(R.id.showDhbwNews);
  97         CheckBox showStuvNewsChkbok = (CheckBox) view.findViewById(R.id.showStuvNews);
  98         CheckBox showStuvEventsChkbok = (CheckBox) view.findViewById(R.id.showStuvEvents);
  99
 100         if(showDhbwNewsChkbok.isChecked()) {
 101             loadNewsSource("DHBW", true);
 102         }
 103         if(showStuvNewsChkbok.isChecked()) {
 104             loadNewsSource("STUV", false);
 105         }
 106         if(showStuvEventsChkbok.isChecked()) {
 107             loadEventsSource("STUV", false);
 108         }
 109
 110         Collections.sort(newsListItems, new Comparator<NewsListItem>() {
 111             @Override
 112             public int compare(NewsListItem item2, NewsListItem item1) {
 113                 long now = (new Date()).getTime() / 1000;
 114                 return (int) (item2.getTimeDifference(now) - item1.getTimeDifference(now));
 115             }
 116         });
 117         if(listAdapter != null)
 118             listAdapter.notifyDataSetChanged();
 119     }
 120
 121     protected void loadNewsSource(String sourceName, boolean isDhbw) {
 122         long now = (new Date()).getTime() / 1000;
 123
 124         NewsItem[] news = AppContext.getDatabaseManager().getNewsItems(sourceName, now, now - (86400 * 30 * 6)); // load 6 month
 125         for(NewsItem cnews : news) {
 126             NewsListItem listItem = new NewsListItem(cnews, isDhbw);
 127             newsListItems.add(listItem);
 128         }
 129     }
 130
 131     protected void loadEventsSource(String sourceName, boolean isDhbw) {
 132         long now = (new Date()).getTime() / 1000;
 133
 134         CourseEvent[] events = AppContext.getDatabaseManager().getCourseCalendarTimetable(sourceName, now, 30 * 6); // load 6 month
 135         for(CourseEvent event : events) {
 136             NewsListItem listItem = new NewsListItem(event, isDhbw);
 137             newsListItems.add(listItem);
 138         }
 139     }
 140 }