Android Open Source - Is-It-Here-Yet Result Activity

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License

The source code is released under:
GNU General Public License
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Java Source Code

/**
 * Is It Here Yet? is a simple Android application that reads the
 * NextBus public XML feed and displays the arrival times for
 * transit vehicles for a chosen stop. //from w  w  w . j av a2  s  .c  om
 * Copyright (C) 2011 Matthew Lam
 *
 * Is It Here Yet? is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Is It Here Yet? is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Is It Here Yet?.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.sudfiwe.iihy.activity;

import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Hashtable;
import com.sudfiwe.iihy.R;
import com.sudfiwe.iihy.uiinterface.DataManager;
import com.sudfiwe.iihy.uiinterface.IPredictionDirection;
import com.sudfiwe.iihy.uiinterface.IPredictionItem;
import com.sudfiwe.iihy.uiinterface.IPredictions;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
import android.text.Html;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;

public class ResultActivity extends Activity {

  private TextView agencyName;
  private TextView routeName;
  private TextView directionName;
  private TextView stopName;
  private TextView summary;
  private TextView timeDisplay;
  private TextView message;
  private ListView itemList;

  private final int NOTIFY_DIALOG_INDEX=0;
  private final int NONOTIFY_DIALOG_INDEX=1;

  private AlertDialog notifyDialog;
  private AlertDialog noNotifyDialog;

  private final int YES_TIME=1;
  private final int YES_COLOUR=Color.GREEN;
  private final int SOON_TIME=5;
  private final int SOON_COLOUR=Color.YELLOW;
  private final int NO_COLOUR=Color.RED;

  private String stopNameText;
  
  private Calendar lastUpdate;
  private TimeEntry[] lastData;

  private TimeEntry selectedEntry;

  ProgressDialog refreshProgressDialog;

  private boolean shownOnceAlready;

  public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.result);

    agencyName=((TextView)findViewById(R.id.agencyText));
    routeName=((TextView)findViewById(R.id.routeText));
    directionName=((TextView)findViewById(R.id.dirText));
    stopName=((TextView)findViewById(R.id.stopText));
    summary=((TextView)findViewById(R.id.summaryText));
    timeDisplay=((TextView)findViewById(R.id.timeText));
    message=((TextView)findViewById(R.id.msgText));

    itemList=((ListView)findViewById(R.id.itemList));
    itemList.setOnItemClickListener(
        new OnItemClickListener() {

          public void onItemClick(AdapterView<?> parent,View view,
              int position,long id) {

            chooseDialog(position);
          }
        });


    ((Button)findViewById(R.id.refreshButton))
    .setOnClickListener(
        new OnClickListener() {

          public void onClick(View v) {

            displayResults();
          }
        }
    );

    shownOnceAlready=false;

    ((IsItHereYet)this.getParent()).setResultActivity(this);
  }

  public void displayResults() {

    shownOnceAlready=true;

    refreshProgressDialog=ProgressDialog.show(
        this,"Loading","Please wait...",true,false);

    final Handler handler=new Handler();

    new Thread(new Runnable() {
      public void run() {

        handler.post(new DisplayResults(
            DataManager.getInstance()
            .getPredictions()));
      }
    }).start();
  }

  private void outputResults(IPredictions data) {

    DataManager dm=DataManager.getInstance();

    lastUpdate=Calendar.getInstance();
    SimpleDateFormat sdf=new SimpleDateFormat("hh:mm:ss a");
    timeDisplay.setText("Updated at "+sdf.format(lastUpdate.getTime()));

    agencyName.setText(dm.getAgencyName());  
    routeName.setText(dm.getRouteName());
    directionName.setText(dm.getDirectionName());
    
    stopNameText=dm.getStopName();
    stopName.setText(stopNameText);

    Hashtable<IPredictionDirection,IPredictionItem[]> list=data.getList();

    IPredictionDirection[] dir=data.getList()
    .keySet().toArray(new IPredictionDirection[data.getList().keySet().size()]);

    int numEntries=0;
    for (IPredictionDirection dirObj:dir) {

      numEntries=numEntries+list.get(dirObj).length;
    }

    lastData=new TimeEntry[numEntries];
    int index=0;
    for (IPredictionDirection dirObj:dir) {

      for (IPredictionItem item:list.get(dirObj)) {
        lastData[index]=new TimeEntry(item,dirObj);
        index++;
      }
    }

    Arrays.sort(lastData);

    String txt="No";
    int col=Color.RED;

    if (lastData.length>0) {

      int small=lastData[0].getData()
      .getMinuteDifference(lastUpdate);

      if (small<=YES_TIME) {
        txt="Yes!";
        col=YES_COLOUR;
      } else if (small<=SOON_TIME) {
        txt="Soon";
        col=SOON_COLOUR;
      }
    }

    summary.setText(txt);
    summary.setTextColor(col);

    message.setText(data.getMessage());

    itemList.setAdapter(new TimeEntryAdapter(
        this,R.layout.resultlistrow,lastData));

    refreshProgressDialog.dismiss();
  }

  public void showTab(boolean force) {

    if (!shownOnceAlready||force) {
      displayResults();
    }
  }

  private void chooseDialog(int position) {

    selectedEntry=lastData[position];

    int diff=selectedEntry.getData().
    getMinuteDifference(Calendar.getInstance());

    if (diff<=YES_TIME) {
      showDialog(NONOTIFY_DIALOG_INDEX);
    } else {
      showDialog(NOTIFY_DIALOG_INDEX);
    }
  }

  private AlertDialog createNotifyDialog() {

    LayoutInflater inflater=(LayoutInflater)
    this.getSystemService(LAYOUT_INFLATER_SERVICE);
    View layout=inflater.inflate(R.layout.notifydialog,
        (ListView)findViewById(R.id.notifyRoot));

    AlertDialog.Builder builder=new AlertDialog.Builder(this);
    builder.setView(layout);

    TextView text=(TextView)layout.findViewById(R.id.notifyText);
    text.setText(Html.fromHtml("Do you want to be notified when this ride arrives?"));

    builder.setPositiveButton("Yes",new DialogInterface.OnClickListener() {
      public void onClick(DialogInterface dialog, int id) {

        createNotification();
        notifyDialog.dismiss();
      }
    });

    builder.setNegativeButton("No",new DialogInterface.OnClickListener() {
      public void onClick(DialogInterface dialog, int id) {
        notifyDialog.dismiss();
      }
    });

    notifyDialog=builder.create();

    notifyDialog.setTitle("Add Notification?");

    notifyDialog.setIcon(R.drawable.ic_logo);

    return notifyDialog;
  }

  private void updateNotifyDialog(AlertDialog dialog,TimeEntry entry) {

    int diff=entry.getData().getMinuteDifference(Calendar.getInstance());

    TextView timeText=(TextView)dialog.findViewById(R.id.notifyTimeText);
    SimpleDateFormat sdf=new SimpleDateFormat("hh:mm:ss a");
    timeText.setText(sdf.format(entry.getData().getArrival().getTime()));
    if (diff<=YES_TIME) {
      timeText.setTextColor(YES_COLOUR);
    } else if (diff<=SOON_TIME) {
      timeText.setTextColor(SOON_COLOUR);
    } else {
      timeText.setTextColor(NO_COLOUR);
    }

    TextView dirText=(TextView)dialog.findViewById(R.id.notifyDirectionText);
    dirText.setText(entry.getDestination().getTitle());
  }

  private void createNotification() {

    final String id=this.toString()+Calendar.getInstance().getTimeInMillis();

    final long pauseTime=selectedEntry.getData().getArrival().getTimeInMillis()-
    Calendar.getInstance().getTimeInMillis()-30000;
    
    String destination=selectedEntry.getDestination().getTitle();

    SimpleDateFormat sdf=new SimpleDateFormat("hh:mm:ss a");
    String time=sdf.format(selectedEntry.getData().getArrival().getTime());

    final Notification.Builder builder=
      new Notification.Builder(this.getApplicationContext())
    .setAutoCancel(true)
    .setContentTitle(destination)
    .setContentText(stopNameText)
    .setWhen(selectedEntry.getData().getArrival().getTimeInMillis())
    .setSmallIcon(R.drawable.ic_note)
    .setTicker("The "+time+" ride to "+destination+" has arrived"+
        " at "+stopNameText+".");
    
    new Thread(new Runnable() {
      public void run() {
        
        try {
          Thread.sleep(pauseTime);
        } catch (InterruptedException e) {
          e.printStackTrace();
        }
        
        NotificationManager notificationManager=
          (NotificationManager)getSystemService(
              NOTIFICATION_SERVICE);

        notificationManager.notify(id,id.hashCode(),
            builder.getNotification());
      }
    }).start();
  }

  private AlertDialog createNoNotifyDialog() {

    LayoutInflater inflater=(LayoutInflater)
    this.getSystemService(LAYOUT_INFLATER_SERVICE);
    View layout=inflater.inflate(R.layout.notifydialog,
        (ListView)findViewById(R.id.notifyRoot));

    AlertDialog.Builder builder=new AlertDialog.Builder(this);
    builder.setView(layout);

    builder.setNeutralButton("Back",new DialogInterface.OnClickListener() {
      public void onClick(DialogInterface dialog, int id) {
        noNotifyDialog.dismiss();
      }
    });

    noNotifyDialog=builder.create();

    noNotifyDialog.setTitle("Cannot Add Notification");

    noNotifyDialog.setIcon(R.drawable.ic_logo);

    return noNotifyDialog;
  }

  private void updateNoNotifyDialog(AlertDialog dialog,TimeEntry entry) {

    TextView text=(TextView)dialog.findViewById(R.id.notifyText);

    int diff=entry.getData().getMinuteDifference(Calendar.getInstance());

    String message="";

    if (diff<0) {

      message="This ride has already passed!";
    } else if (diff<=YES_TIME) {

      message="This ride is almost here.";
    }

    text.setText(Html.fromHtml(message));

    TextView timeText=(TextView)dialog.findViewById(R.id.notifyTimeText);
    SimpleDateFormat sdf=new SimpleDateFormat("hh:mm:ss a");
    timeText.setText(sdf.format(entry.getData().getArrival().getTime()));
    if (diff<=YES_TIME) {
      timeText.setTextColor(YES_COLOUR);
    }

    TextView dirText=(TextView)dialog.findViewById(R.id.notifyDirectionText);
    dirText.setText(entry.getDestination().getTitle());
  }

  private class TimeEntry implements Comparable<TimeEntry> {

    private IPredictionItem data;
    private IPredictionDirection destination;

    public TimeEntry(IPredictionItem pData,
        IPredictionDirection pDest) {

      data=pData;
      destination=pDest;
    }

    public IPredictionItem getData() {
      return data;
    }

    public IPredictionDirection getDestination() {
      return destination;
    }

    public int compareTo(TimeEntry another) {

      return data.getArrival().compareTo(
          another.data.getArrival());
    }
  }

  private class TimeEntryAdapter extends ArrayAdapter<TimeEntry> {

    private TimeEntry[] items;
    private int rowId;

    public TimeEntryAdapter(Context pCtx,
        int pId,TimeEntry[] pItems) {

      super(pCtx,pId,pItems);
      rowId=pId;
      items=pItems;
    }

    public View getView(int position,View convertView,
        ViewGroup parent) {

      View v=convertView;

      if (v==null) {

        LayoutInflater vi=(LayoutInflater)getSystemService(
            Context.LAYOUT_INFLATER_SERVICE);
        v=vi.inflate(rowId,null);
      }

      TimeEntry entry=items[position];

      if (position%2==0) {
        v.setBackgroundColor(Color.rgb(40,40,40));
      } else {
        v.setBackgroundColor(Color.rgb(15,15,15));
      }

      int min=entry.getData()
      .getMinuteDifference(lastUpdate);
      if (min<0) {
        min=0;
      }

      String minTxt=" minute";
      if (min!=1) {
        minTxt=minTxt+"s";
      }
      int minCol=NO_COLOUR;
      if (min<=YES_TIME) {
        minCol=YES_COLOUR;
      } else if (min<=SOON_TIME) {
        minCol=SOON_COLOUR;
      }

      TextView rowTimeText=
        ((TextView)v.findViewById(R.id.rowTimeText));
      rowTimeText.setText(min+"");
      rowTimeText.setTextColor(minCol);

      TextView rowMinuteText=
        ((TextView)v.findViewById(R.id.rowMinuteText));
      rowMinuteText.setText(minTxt);
      rowMinuteText.setTextColor(minCol);

      ((TextView)v.findViewById(R.id.rowVehicleText))
      .setText("Vehicle "+entry.getData().getVehicle());

      ((TextView)v.findViewById(R.id.rowDestinationText))
      .setText(entry.getDestination().getTitle());

      return v;
    }
  }

  public class DisplayResults implements Runnable {

    private IPredictions data;

    public DisplayResults(IPredictions pData) {

      data=pData;
    }

    public void run() {

      outputResults(data);
    }
  }

  protected Dialog onCreateDialog(int id,Bundle bundle) {

    Dialog dialog=null;

    if (id==NOTIFY_DIALOG_INDEX) {

      dialog=createNotifyDialog();
    } else if (id==NONOTIFY_DIALOG_INDEX) {

      dialog=createNoNotifyDialog();
    }

    return dialog;
  }

  protected void onPrepareDialog(int id,Dialog dialog,Bundle bundle) {

    if (id==NOTIFY_DIALOG_INDEX) {

      updateNotifyDialog((AlertDialog)dialog,selectedEntry);
    } else if (id==NONOTIFY_DIALOG_INDEX) {

      updateNoNotifyDialog((AlertDialog)dialog,selectedEntry);
    }
  }
}
Java Source Code List
