Android Open Source - CampusSynergyAndroid Main Activity

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Back to project page CampusSynergyAndroid.

License

The source code is released under:

MIT License

Java Source Code

package com.saamd.campussynergy;
/*from   ww  w.  ja  v a2 s  .co  m*/
import java.io.IOException;
import java.lang.reflect.Array;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.List;

import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;














import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.content.res.XmlResourceParser;
import android.graphics.Color;
import android.net.ConnectivityManager;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.InfoWindowAdapter;
import com.google.android.gms.maps.GoogleMap.OnInfoWindowClickListener;
import com.google.android.gms.maps.GoogleMap.OnMapClickListener;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.gms.maps.model.Polygon;
import com.google.android.gms.maps.model.PolygonOptions;
import com.google.android.gms.maps.model.PolylineOptionsCreator;
import com.parse.FindCallback;
import com.parse.Parse;
import com.parse.ParseException;
import com.parse.ParseGeoPoint;
import com.parse.ParseObject;
import com.parse.ParseQuery;

public class MainActivity extends Activity {
  public static final boolean debug = false;  // Setting this to true will cause debug messages to appear with tag USER
  
  private final LatLng HOME_LOCATION = new LatLng(32.72898611111111, -97.11500833333332);    //HOME LOCATION  
  private ArrayList<Event> eventList = new ArrayList<Event>();    //this arraylist holds all the events
  private Hashtable<String, Building> buildingList =  new Hashtable<String, Building>();
  private GoogleMap map;
  Dialog dialog;

  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //this code initializes parse databases 
    Parse.initialize(this, getString(R.string.ParseAuthCode_1), getString(R.string.ParseAuthCode_2));
    setContentView(R.layout.activity_main);    //sets the layout to the activity_main.xml
    popupMenu();    //this method runs the popup menu that displays the campusSynergy logo
    
    
    Button leButton = (Button) findViewById(R.id.btn_List);
    leButton.setOnClickListener(new OnClickListener() {
      
      @Override
      public void onClick(View v) {
        Intent i = new Intent(MainActivity.this, EventList.class);
        i.putExtra("ArrayList<Event>", eventList);
        startActivity(i);
      }
    });
    
    Button infoButton = (Button) findViewById(R.id.info);
    infoButton.setOnClickListener(new OnClickListener() {
      
      @Override
      public void onClick(View v) {
        Intent i = new Intent(MainActivity.this, CreditsActivity.class);
        startActivity(i);
      }
    });    
    map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
    map.setMapType(GoogleMap.MAP_TYPE_NORMAL);
    // CameraUpdate update = CameraUpdateFactory.newLatLng(HOME_LOCATION);
    CameraUpdate update = CameraUpdateFactory.newLatLngZoom(HOME_LOCATION, 16);
    map.animateCamera(update);
    
    //isOnline method checks to see if the device has Internet connectivity or not
    if (!isOnline()) {
      // No Internet connection  :: we display a toast to indicate the situation
      Context context = getApplicationContext();
      CharSequence text = "No Internet Connection. No Events!!";
      int duration = Toast.LENGTH_LONG;
      Toast toast = Toast.makeText(context, text, duration);
      toast.show();
    }

    // Retrieving data and adds markers
    ParseQuery query = new ParseQuery("campus_synergy");
    // query.whereNotEqualTo("bldName", "");
    //this runs in the background and fires a callback when data is retrieved
    query.findInBackground(new FindCallback() {

      public void done(List<ParseObject> scoreList, ParseException e) {
        try {
          if (e == null) {
            Log.d("score", "Retrieved " + scoreList.size() + " scores");
            for (int i = 0; i < scoreList.size(); i++) {
              Date date;
              Calendar eventDate = null;
              date = scoreList.get(i).getDate("date");  //gets event date
              Calendar currentDate = Calendar.getInstance();
              //converting date to calendar
              DateFormat format=new SimpleDateFormat("yyyy/mm/dd hh:MM");
              format.format(date);
              eventDate = format.getCalendar();
              eventDate.add(Calendar.HOUR_OF_DAY, (int) scoreList.get(i).getDouble("duration"));
              
              if(eventDate.compareTo(currentDate) < 0)
              {
                //so the event date/time is already passed
                //we delete the object from dataBase
                //scoreList.get(i).deleteInBackground();
                //This could introduce a huge security risk
              }
              else
              {
                // event date is more than or equal to current date/time
                // so we add the event to the eventList
                String title, buildingName, pointDescription, publisher;
                
                title = scoreList.get(i).getString("title");    //title
                buildingName = scoreList.get(i).getString("bldName");    //building name
                pointDescription = scoreList.get(i).getString("longDescription");  //description
                            //date
                publisher = scoreList.get(i).getString("publisher");
                
                ParseGeoPoint pointLocation = new ParseGeoPoint();
                //pointLocation = scoreList.get(i).getParseGeoPoint("location");
                //LatLng location = new LatLng(pointLocation.getLatitude(), pointLocation.getLongitude());

                MarkerOptions markerOptions = new MarkerOptions();
                // the following line adds the marker to the map object
                //map.addMarker(markerOptions.position(location).title(title).snippet(buildingName.toString()));
                //the following code adds the event to the event list
                eventList.add(new Event(title,buildingName, pointDescription, scoreList.get(i).getString("roomString"), scoreList.get(i).getDouble("duration"), date, publisher));
                
                //add all the building to the building list
                Building bld = new Building(buildingName);
                buildingList.put(buildingName ,bld);
                
                highlightBuilding(buildingName);
              }
              
              
              // Log.d("test", "eventList size = " + eventList.size());
            }

          } else {
            Log.d("score", "Error: " + e.getMessage());    //tracing code
          }
        } catch (Exception e1) {
          Log.d("Error", "Not a valid database data Exception: " + e1);    //debuging code
        }
        

        //addMarkerListenerToMap();    //this method adds an onclick listener to each marker that has data
        
        fetchBuildingDataFromXML();
        
        addPolygonListenerToMap();
        
        //Sorting events based on date
        Collections.sort(eventList);
        
        
      }
    });

  }
  
  private void fetchBuildingDataFromXML(){
    
    ArrayList<Double> list = null;
    XMLParser parser = new XMLParser();
    
    try {
      for (String itm : buildingList.keySet())
      {
        Building bld = buildingList.get(itm);
        list = parser.getCoordinatesOfBuilding(MainActivity.this, bld.getName());
        //Log.d("USER", "DEBUG" + list.toString());
        //size is guaranteed to be even number
        for (int i=0; i< list.size(); i+=2)
        {
          bld.addLatitude( list.get(i) );
          bld.addLongitude( list.get(i+1) );
        }
        bld.prepObject();  //sorts the lists
      }

    } catch (XmlPullParserException e1) {
      // TODO Auto-generated catch block
      Log.d("USER", "ERROR 1: XmlPullParserException");
    } catch (IOException e2) {
      // TODO Auto-generated catch block
      Log.d("USER", "ERROR 2: IOException");
    }catch (Exception e3) {
      // TODO Auto-generated catch block
      Log.d("USER", "ERROR 3: Generic Exception: " + e3.toString());
    }
  }
  
  
  private void addPolygonListenerToMap() {
    map.setOnMapClickListener(new OnMapClickListener() {
      
      public void onMapClick(LatLng location) {
        // TODO Auto-generated method stub
        String building = whatBuildingWasClicked(location.latitude, location.longitude) ;
        if(building != null) {
          Log.d("USER" , building);
          
          ArrayList<Event> events = new ArrayList<Event>();
          for(Event even : eventList)
          {
            Log.d("USER" , even.getBuildingName() + "  -  ");
            if(even.getBuildingName().equals(building))
            {
              events.add(even);
            }
          }
          if(!events.isEmpty())
          {
            Intent i = new Intent(MainActivity.this, EventList.class);
            i.putExtra("ArrayList<Event>", events);
            startActivity(i);
          }
        }
      }
    });
  }
  
  //currently not used
  private void addMarkerListenerToMap() {
    map.setOnInfoWindowClickListener(new OnInfoWindowClickListener() {

      @Override
      public void onInfoWindowClick(Marker marker) { // TODO

        Event tmp = findEventByTitleAndBuilding(marker.getTitle(), marker.getSnippet());
        if (tmp != null) {
          
          Intent i = new Intent(MainActivity.this, EventDisplay.class);
          i.putExtra("Event", tmp);
          startActivity(i);
          
        } else {
          Log.d("Error", "addListenerToMap : Line 147");
        }

      }
    });
  }
  
  //currently not used
  private Event findEventBySnippet(String description) {
    for (Event i : eventList) {
      if ((i.getDescription()).equals(description)) {
        return i;
      }
    }
    return null;

  }

  private Event findEventByTitleAndBuilding(String title, String buildingName) {
    for (Event i : eventList) {
      if ((i.getBuildingName()).equals(buildingName) && i.getTitle().equals(title)) {
        return i;
      }
    }
    return null;

  }
  
  //currently not used
  private void addMarker(final String buildingName, final String description, final String room, final String startingTime, final String duration) {
    // Setting a custom info window adapter for the google map
    map.setInfoWindowAdapter(new InfoWindowAdapter() {

      // Use default InfoWindow frame
      @Override
      public View getInfoWindow(Marker arg0) {
        return null;
      }

      // Defines the contents of the InfoWindow
      @Override
      public View getInfoContents(Marker arg0) {

        // Getting view from the layout file info_window_layout
        View v = getLayoutInflater().inflate(R.layout.marker_info_window_layout, null);
        // linking to xml widgets
        TextView textView_building = (TextView) v.findViewById(R.id.textView_building);
        TextView textView_description = (TextView) v.findViewById(R.id.textView_description);
        TextView textView_roomNumber = (TextView) v.findViewById(R.id.textView_roomNumber);
        TextView textView_startingTime = (TextView) v.findViewById(R.id.textView_startingTime);
        TextView textView_duration = (TextView) v.findViewById(R.id.textView_duration);
        // Returning the view containing InfoWindow contents
        textView_building.setText(buildingName.toString());
        textView_description.setText(description.toString());
        textView_roomNumber.setText(room.toString());
        textView_startingTime.setText(startingTime.toString());
        textView_duration.setText(duration.toString());

        return v;

      }
    });
  }

  private void popupMenu() {
    View view = LayoutInflater.from(this).inflate(R.layout.popup, null);
    dialog = new Dialog(MainActivity.this);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.setContentView(view);
    //dialog.getWindow().setLayout(384, 512);
    dialog.show();
    Button ok = (Button) view.findViewById(R.id.button_popup_ok);
    ok.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        // TODO Auto-generated method stub
        dialog.hide();
      }
    });
  }

  public boolean isOnline() {
    ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    return cm.getActiveNetworkInfo() != null && cm.getActiveNetworkInfo().isConnectedOrConnecting();
  }

  public void onClick_add(View V) {
    // Class newClass =
    // Class.forName("com.saamd.campussynergy.AddActivity");
    Intent i = new Intent(MainActivity.this, AddActivity.class);
    startActivity(i);
  }
  //not used anymore
  public void showEventList(){
    View view = LayoutInflater.from(this).inflate(R.layout.event_list_item, null);
    dialog = new Dialog(MainActivity.this);
    dialog.requestWindowFeature(Window.FEATURE_OPTIONS_PANEL);
    dialog.setContentView(view);
    //dialog.getWindow().setLayout( 600 , 700 );
    dialog.show();
    
    ArrayList<String> stringArrayList = new ArrayList<String>();
    for (Event x : eventList){
      stringArrayList.add(x.getTitle());
    }
    
    /*TabHost tabHost= (TabHost) view.findViewById(R.id.tabhost);
    tabHost.setup();

    TabSpec spec1=tabHost.newTabSpec("Tab 1");
    spec1.setContent(R.id.tab1);
    spec1.setIndicator("Tab 1");

    TabSpec spec2=tabHost.newTabSpec("Tab 2");
    spec2.setIndicator("Tab 2");
    spec2.setContent(R.id.tab2);
    
    tabHost.addTab(spec1);
    tabHost.addTab(spec2);
    */
    ListView list1 = (ListView) view.findViewById(R.id.eventList);
    ArrayAdapter<String> arrayAdapter =      
             new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, stringArrayList);
             list1.setAdapter(arrayAdapter);
    //dummy comment
    //2nd dummy
  }
  
  public String whatBuildingWasClicked(Double lat, Double lng){
    
    for (String itm : buildingList.keySet())
    {  
      Building build = buildingList.get(itm);
      if(lat > build.getMinLatitude() && lat < build.getMaxLatitude() && lng > build.getMinLongitude() && lng < build.getMaxLongitude())
      {
        return build.getName();    //return building name
      }
    }
    return null;    //base case: if no building was clicked
  }
  
  
  /**
   * Highlights a building
   * @param buildingName: make sure building names are correct!!
   */
  public void highlightBuilding(String buildingName)
  {
    // XML node keys
    ArrayList<Double> list = null;
    XMLParser parser = new XMLParser();
    try {
      list = parser.getCoordinatesOfBuilding(MainActivity.this, buildingName);
    } catch (XmlPullParserException e1) {
      // TODO Auto-generated catch block
      Log.d("USER", "ERROR 1: XmlPullParserException");
    } catch (IOException e1) {
      // TODO Auto-generated catch block
      Log.d("USER", "ERROR 2: IOException");
    }
    
    
    PolygonOptions rectOptions = new PolygonOptions();
    try{
      for (int i=0; i<list.size(); i+=2)
      {
        rectOptions.add( new LatLng(list.get(i), list.get(i+1)) );
      }
      
      Polygon polygon = map.addPolygon(rectOptions);
      polygon.setStrokeColor(Color.RED);
      polygon.setStrokeWidth(1);
          polygon.setFillColor( Color.argb(100, 225, 0, 120) );
    } catch(Exception e0){
      Log.d("USER", "ERROR 0: Exception: BAD BUILDING NAME!");
    }
  }
}

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