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

   1 package de.dhbwloe.campusapp.fragments;
   2
   3
   4 import android.os.Bundle;
   5 import android.support.design.widget.TabLayout;
   6 import android.support.v4.app.Fragment;
   7 import android.support.v4.app.FragmentManager;
   8 import android.support.v4.app.FragmentPagerAdapter;
   9 import android.support.v4.view.ViewPager;
  10 import android.support.v7.app.AppCompatActivity;
  11 import android.support.v7.widget.Toolbar;
  12 import android.view.LayoutInflater;
  13 import android.view.View;
  14 import android.view.ViewGroup;
  15
  16 import java.text.SimpleDateFormat;
  17 import java.util.ArrayList;
  18 import java.util.Calendar;
  19 import java.util.Date;
  20 import java.util.List;
  21
  22 import de.dhbwloe.campusapp.CampusAppFragment;
  23 import de.dhbwloe.campusapp.R;
  24 import de.dhbwloe.campusapp.Tools;
  25 import de.dhbwloe.campusapp.search.SearchIndices;
  26
  27 /**
  28  * A simple {@link Fragment} subclass.
  29  */
  30 public class Mensa extends CampusAppFragment {
  31     /* implement this for search results ;) */
  32     public static SearchIndices[] GetSearchIndices() {
  33         return new SearchIndices[] {
  34                 new SearchIndices("Mensa", true) {{
  35                     setUpdateTime(1);
  36                     setTarget("#Mensa");
  37                     setTitle(R.string.search_mensa_title);
  38                     setDescription(R.string.search_mensa_description);
  39                     addKeyWord(R.string.search_mensa_keywords);
  40                 }},
  41         };
  42     }
  43
  44     private TabLayout tabLayout;
  45     private ViewPager viewPager;
  46     private long viewDate;
  47
  48     @Override
  49     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  50                              Bundle savedInstanceState) {
  51         View view = inflater.inflate(R.layout.fragment_mensa, container, false);
  52         boolean viewmodeSet = false;
  53         Bundle arguments = getArguments();
  54         viewDate = (new Date()).getTime()/1000;
  55         if(arguments != null) {
  56             String showdate = arguments.getString("showdate");
  57             long date;
  58             if(showdate != null && !showdate.isEmpty() && (date = Long.parseLong(showdate)) > 0) {
  59                 viewDate = date;
  60             }
  61         }
  62
  63         AppContext.setTitle(AppContext.getResString(R.string.mensa_title));
  64
  65         /*
  66         toolbar = (Toolbar) view.findViewById(R.id.toolbar);
  67         ((AppCompatActivity) getActivity()).setSupportActionBar(toolbar);
  68
  69         ((AppCompatActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
  70         */
  71
  72         viewPager = (ViewPager) view.findViewById(R.id.viewpager);
  73         setupViewPager(viewPager);
  74
  75         tabLayout = (TabLayout) view.findViewById(R.id.tabs);
  76         tabLayout.setupWithViewPager(viewPager);
  77
  78         return view;
  79     }
  80
  81     private void setupViewPager(ViewPager viewPager) {
  82         final ViewPagerAdapter adapter = new ViewPagerAdapter(getChildFragmentManager());
  83
  84         long[] showDates;
  85         long now = (new Date()).getTime()/1000;
  86         if(viewDate < now)
  87             now = viewDate;
  88
  89         Calendar cal = Calendar.getInstance();
  90         cal.setTime(new Date(now * 1000));
  91         cal.set(Calendar.HOUR_OF_DAY, 0);
  92         cal.set(Calendar.MINUTE, 0);
  93         cal.set(Calendar.SECOND, 0);
  94         cal.set(Calendar.MILLISECOND, 0);
  95         long midnight = cal.getTimeInMillis() / 1000;
  96         int dow = cal.get(Calendar.DAY_OF_WEEK);
  97         dow -= 2;
  98         if(dow < 0) // monday should be 0!
  99             dow += 7;
 100         long subTimeToWeekStart = (86400 * dow);
 101         long showDateFrom = midnight - subTimeToWeekStart;
 102
 103         showDates = AppContext.getDatabaseManager().getDaysWithPlanData(showDateFrom, now + (30 * 86400));
 104
 105         int activeItem = -1;
 106         long activeItemDiff = -1;
 107         Bundle args = getArguments();
 108         int lastWeekday = 0;
 109         for(int i = 0; i < showDates.length; i++) {
 110             long date = showDates[i];
 111             Bundle bundle = new Bundle();
 112             if(args != null)
 113                 bundle.putAll(args);
 114             String title;
 115             SimpleDateFormat sdf;
 116
 117             cal.setTime(new Date(date * 1000));
 118             int weekday = cal.get(Calendar.DAY_OF_WEEK);
 119             weekday -= 2; // monday should be 0!
 120             if(weekday < 0)
 121                 weekday += 7;
 122
 123             if(viewDate > 0) {
 124                 long diff = Math.abs(viewDate - date);
 125                 if(activeItem == -1 || diff < activeItemDiff) {
 126                     activeItem = i;
 127                     activeItemDiff = diff;
 128                 }
 129             }
 130
 131             if(lastWeekday > weekday) {
 132                 adapter.addFragment(null, null);
 133             }
 134             lastWeekday = weekday;
 135
 136             title = Tools.getWeekdayString(date, false);
 137             bundle.putLong("date", date);
 138             adapter.addFragment(bundle, title);
 139         }
 140         viewPager.setAdapter(adapter);
 141         viewPager.setCurrentItem(activeItem);
 142
 143         MensaTagesplan tagesplan = (MensaTagesplan)adapter.getItem(activeItem);
 144         tagesplan.onSetActive();
 145
 146
 147         viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
 148             @Override
 149             public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
 150
 151             }
 152
 153             @Override
 154             public void onPageSelected(int position) {
 155                 MensaTagesplan tagesplan = (MensaTagesplan)adapter.getItem(position);
 156                 tagesplan.onSetActive();
 157             }
 158
 159             @Override
 160             public void onPageScrollStateChanged(int state) {
 161
 162             }
 163         });
 164     }
 165
 166
 167     class ViewPagerAdapter extends FragmentPagerAdapter {
 168         private final List<Fragment> mFragmentList = new ArrayList<>();
 169         private final List<Bundle> mFragmentDataList = new ArrayList<>();
 170         private final List<String> mFragmentTitleList = new ArrayList<>();
 171
 172         public ViewPagerAdapter(FragmentManager manager) {
 173             super(manager);
 174         }
 175
 176         @Override
 177         public Fragment getItem(int position) {
 178             Fragment fragment;
 179             while(mFragmentList.size() <= position) {
 180                 mFragmentList.add(null);
 181             }
 182             if(mFragmentList.get(position) != null)
 183                 return mFragmentList.get(position);
 184             fragment = new MensaTagesplan();
 185
 186             fragment.setArguments(mFragmentDataList.get(position));
 187             mFragmentList.set(position, fragment);
 188             return fragment;
 189         }
 190
 191         @Override
 192         public int getCount() {
 193             return mFragmentDataList.size();
 194         }
 195
 196         public void addFragment(Bundle fragmentdata, String title) {
 197             if(title == null) {
 198                 Bundle bnd = new Bundle();
 199                 bnd.putBoolean("parentIsMensaFragment", true);
 200                 mFragmentDataList.add(bnd);
 201                 mFragmentTitleList.add("");
 202                 return;
 203             }
 204
 205             fragmentdata.putBoolean("parentIsMensaFragment", true);
 206             mFragmentDataList.add(fragmentdata);
 207             mFragmentTitleList.add(title);
 208         }
 209
 210         @Override
 211         public CharSequence getPageTitle(int position) {
 212             return mFragmentTitleList.get(position);
 213         }
 214     }
 215
 216 }