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

   1 package de.dhbwloe.campusapp.fragments;
   2
   3
   4 import android.os.Bundle;
   5 import android.support.v4.app.Fragment;
   6 import android.text.method.CharacterPickerDialog;
   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.ArrayList;
  16 import java.util.Date;
  17
  18 import de.dhbwloe.campusapp.CampusAppFragment;
  19 import de.dhbwloe.campusapp.R;
  20 import de.dhbwloe.campusapp.vorlesungen.CourseGroup;
  21
  22 /**
  23  * A simple {@link Fragment} subclass.
  24  */
  25 public class VorlesungsplanGroups extends CampusAppFragment implements Vorlesungsplan.VorlesungsplanFragment {
  26     private String coursename;
  27     private View view;
  28     private VorlesungsplanGroupsListAdapter listAdapter;
  29     private ArrayList<VorlesungsplanGroupsListItem> listItems = new ArrayList<VorlesungsplanGroupsListItem>();
  30     private boolean showOldCourses = false;
  31
  32     public VorlesungsplanGroups() {
  33         // Required empty public constructor
  34     }
  35
  36
  37     @Override
  38     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  39                              Bundle savedInstanceState) {
  40         String kursTag = AppContext.getDatabaseManager().getRuntimeCache("CourseName");
  41         if(kursTag == null || kursTag.isEmpty())
  42             return null;
  43         coursename = kursTag;
  44
  45         view = inflater.inflate(R.layout.fragment_vorlesungsplan_groups, container, false);
  46
  47         ListView listView = (ListView) view.findViewById(R.id.listView);
  48         listAdapter = new VorlesungsplanGroupsListAdapter(view.getContext(), R.layout.fragment_vorlesungsplan_groups_course, listItems);
  49         listView.setAdapter(listAdapter);
  50
  51         CheckBox showOldChkBox = (CheckBox) view.findViewById(R.id.showOldCourses);
  52         showOldChkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
  53             @Override
  54             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
  55                 showOldCourses = isChecked;
  56                 updateCoursesList();
  57             }
  58         });
  59
  60         listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
  61             @Override
  62             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
  63                 VorlesungsplanGroupsListItem item = listItems.get(position);
  64
  65                 Bundle args = new Bundle();
  66                 args.putString("groupid", Integer.toString(item.getGroupId()));
  67                 AppContext.getNavigationManager().navigatePage("Vorlesungsplan", args);
  68             }
  69         });
  70
  71         return view;
  72     }
  73
  74     @Override
  75     public void setActive() {
  76
  77     }
  78
  79
  80     @Override
  81     public void onResume() {
  82         super.onResume();
  83         if(coursename != null)
  84             updateCoursesList();
  85     }
  86
  87     private void updateCoursesList() {
  88         Date notBefore;
  89         if(showOldCourses)
  90             notBefore = null;
  91         else
  92             notBefore = new Date();
  93
  94         CourseGroup[] groups = AppContext.getDatabaseManager().getCourseGroups(coursename, notBefore);
  95         listItems.clear();
  96         for(CourseGroup group : groups) {
  97             Bundle extraData = group.getExtraData();
  98             long nextKlausur = extraData.getLong("NextKlausurEvent");
  99             long lastEvent = extraData.getLong("LastEvent");
 100
 101             // wenn nextKlausur über 5 jahrevon LastEvent entfernt liegt gibt es in diesem kurs KEINE Klausur.
 102             // der fiktive Wert musste zur technischen funktionalität der Datenbankabfrage eingefügt werden.
 103             if(nextKlausur - lastEvent > (86400 * 365 * 5))
 104                 nextKlausur = 0;
 105
 106             VorlesungsplanGroupsListItem item = new VorlesungsplanGroupsListItem(
 107                     group.getGroupId(),
 108                     coursename,
 109                     group.getGroupName(),
 110                     extraData.getLong("FirstEvent"),
 111                     lastEvent,
 112                     extraData.getInt("EventCount"),
 113                     extraData.getLong("NextEvent"),
 114                     nextKlausur
 115             );
 116             listItems.add(item);
 117         }
 118         if(listAdapter != null)
 119             listAdapter.notifyDataSetChanged();
 120     }
 121
 122 }