Android Open Source - tum-campus Cafeterias

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License

The source code is released under:

GNU General Public License

Java Source Code

?package de.tum.in.tumcampus;
//from   www  .  j a  v a2  s .  com
import java.util.Calendar;

import android.app.Activity;
import android.content.Intent;
import android.content.IntentFilter;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.SlidingDrawer;
import android.widget.TextView;
import de.tum.in.tumcampus.common.Const;
import de.tum.in.tumcampus.common.Utils;
import de.tum.in.tumcampus.models.CafeteriaManager;
import de.tum.in.tumcampus.models.CafeteriaMenuManager;
import de.tum.in.tumcampus.models.LocationManager;
import de.tum.in.tumcampus.services.DownloadService;

/**
 * Activity to show cafeterias and meals selected by date
 */
public class Cafeterias extends Activity implements OnItemClickListener {

  /**
   * Current Date selected (ISO format)
   */
  private static String date;

  /**
   * Current Date selected (German format)
   */
  private static String dateStr;

  /**
   * Current Cafeteria selected
   */
  private String cafeteriaId;

  /**
   * Current Cafeteria name selected
   */
  private String cafeteriaName;

  /**
   * Cafeteria prices url
   */
  private static String url_prices = "http://www.studentenwerk-muenchen.de/mensa/unsere-preise/";

  /**
   * Cafeteria list Garching url
   */
  private static String url_cafeterias_gar = "http://www.studentenwerk-muenchen.de/mensa/unsere-mensen-und-cafeterien/garching/";

  /**
   * Cafeteria list Muenchen url
   */
  private static String url_cafeterias_muc = "http://www.studentenwerk-muenchen.de/mensa/unsere-mensen-und-cafeterien/muenchen/";

  /**
   * Footer with opening hours
   */
  View footer;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // default date: today or next monday if today is weekend
    if (date == null) {
      Calendar calendar = Calendar.getInstance();
      int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK);
      if (dayOfWeek == Calendar.SATURDAY) {
        calendar.add(Calendar.DATE, 2);
      }
      if (dayOfWeek == Calendar.SUNDAY) {
        calendar.add(Calendar.DATE, 1);
      }
      date = Utils.getDateString(calendar.getTime());
      dateStr = Utils.getDateStringDe(calendar.getTime());
    }

    if (getResources().getConfiguration().orientation == android.content.res.Configuration.ORIENTATION_LANDSCAPE) {
      setContentView(R.layout.cafeterias_horizontal);
    } else {
      setContentView(R.layout.cafeterias);
    }

    // initialize listview footer for opening hours
    footer = getLayoutInflater().inflate(android.R.layout.two_line_list_item, null, false);

    ListView lv3 = (ListView) findViewById(R.id.listView3);
    lv3.addFooterView(footer);

    // get toast feedback and resume activity
    registerReceiver(DownloadService.receiver, new IntentFilter(DownloadService.broadcast));
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    unregisterReceiver(DownloadService.receiver);
  }

  @Override
  protected void onResume() {
    super.onResume();

    // get cafeteria list, filtered by user-defined substring
    String filter = Utils.getSetting(this, Const.Settings.cafeteriaFilter);

    CafeteriaManager cm = new CafeteriaManager(this);
    Cursor c2 = cm.getAllFromDb("%" + filter + "%");

    SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, android.R.layout.two_line_list_item, c2,
        c2.getColumnNames(), new int[] { android.R.id.text1, android.R.id.text2 });

    ListView lv2 = (ListView) findViewById(R.id.listView2);
    lv2.setAdapter(adapter);
    lv2.setOnItemClickListener(this);

    // get all (distinct) dates having menus available
    CafeteriaMenuManager cmm = new CafeteriaMenuManager(this);
    Cursor c = cmm.getDatesFromDb();

    adapter = new SimpleCursorAdapter(this, android.R.layout.simple_list_item_1, c, c.getColumnNames(),
        new int[] { android.R.id.text1 });

    ListView lv = (ListView) findViewById(R.id.listView);
    lv.setAdapter(adapter);
    lv.setOnItemClickListener(this);

    // reset new items counter
    CafeteriaMenuManager.lastInserted = 0;
  }

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

    SlidingDrawer sd = (SlidingDrawer) findViewById(R.id.slider);
    if (sd.isOpened()) {
      sd.animateClose();
    }

    // click on date
    if (av.getId() == R.id.listView) {
      ListView lv = (ListView) findViewById(R.id.listView);
      Cursor c = (Cursor) lv.getAdapter().getItem(position);
      date = c.getString(c.getColumnIndex("_id"));
      dateStr = c.getString(c.getColumnIndex("date_de"));
    }

    // click on cafeteria
    if (av.getId() == R.id.listView2) {
      ListView lv2 = (ListView) findViewById(R.id.listView2);
      Cursor c = (Cursor) lv2.getAdapter().getItem(position);

      cafeteriaId = c.getString(c.getColumnIndex("_id"));
      cafeteriaName = c.getString(c.getColumnIndex("name"));
    }

    // get menus filtered by cafeteria and date
    if (cafeteriaId != null && date != null) {
      TextView tv = (TextView) findViewById(R.id.cafeteriaText);
      tv.setText(cafeteriaName + ": " + dateStr);

      // opening hours
      LocationManager lm = new LocationManager(this);
      tv = (TextView) footer.findViewById(android.R.id.text2);
      tv.setText(lm.getHoursById(cafeteriaId));

      // menus
      CafeteriaMenuManager cmm = new CafeteriaMenuManager(this);
      Cursor c = cmm.getTypeNameFromDb(cafeteriaId, date);

      TextView tv3 = (TextView) footer.findViewById(android.R.id.text1);
      if (c.getCount() == 0) {
        tv3.setText("ffnungszeiten");
      } else {
        tv3.setText("Ausgabezeiten");
      }

      // no onclick for items, no separator line
      SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, android.R.layout.two_line_list_item, c,
          c.getColumnNames(), new int[] { android.R.id.text1, android.R.id.text2 }) {

        @Override
        public boolean areAllItemsEnabled() {
          return false;
        }

        @Override
        public boolean isEnabled(int position) {
          return false;
        }
      };

      ListView lv3 = (ListView) findViewById(R.id.listView3);
      lv3.setAdapter(adapter);
    }
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    super.onCreateOptionsMenu(menu);
    MenuItem m = menu.add(0, Menu.FIRST, 0, "Aktualisieren");
    m.setIcon(R.drawable.ic_menu_refresh);

    m = menu.add(0, Menu.FIRST + 1, 0, "Einstellungen");
    m.setIcon(android.R.drawable.ic_menu_preferences);

    m = menu.add(0, Menu.FIRST + 2, 0, "Preise");
    m.setIcon(android.R.drawable.ic_menu_info_details);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {

    // option menu for refresh, settings and external links
    switch (item.getItemId()) {
    case Menu.FIRST:
      // download latest cafeterias and menus
      Intent service = new Intent(this, DownloadService.class);
      service.putExtra("action", "cafeterias");
      startService(service);
      return true;

    case Menu.FIRST + 1:
      startActivity(new Intent(this, Settings.class));
      return true;

    case Menu.FIRST + 2:
      startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url_prices)));
      return true;

    case Menu.FIRST + 3:
      startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url_cafeterias_gar)));
      return true;

    case Menu.FIRST + 4:
      startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url_cafeterias_muc)));
      return true;
    }
    return false;
  }
}

Java Source Code List

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