Im having a problem.
I am trying to build a software that communicates with a website.
simply, i would like to have a php webpage that when i click a button
it creates an alert on the phone.
I planned on doing that by using a mysql database to with the website
where the click from the webpage will update the database, then the
mobile phone will (at intervals) make a request to the webpage or
database to retrieve that info.
Here's what im thinking of using:
PHP
Mysql
Android OS
Windows Mobile OS
I found a tutorial from Apress called 'Apress Android Tutorials July
2008' and found an example that was about 90% similar to what i want
(with the source code) but when i try it i get errors and I cant find
a way to contact Apress(site is down etc)
The example was called Chapter 5: Loading a List from the Web. when i
use eclipse with the source, the error i get is "UIThreadUtilities
cannot be resolved". I noticed that when i excluded the rest of the
code and specify to import UIThreadUtilities it doesnt work.
I know this message is a bit long and it involves a lot but If anyone
can please help:
1. request i send them the source code from Apress to see if it works
on their eclipse. So I know how to fix it.
or
2. recommend an alternative way for me to pull info from a URL(or php
page) or a database.
Heres the code its supposed to pick a list of radio stations via xml
parsing from a web location:
I get errors where it says UiThreadutilities and other related places
======================================================================
package com.apress.radio;
import java.io.InputStream;
import java.util.List;
import java.util.Vector;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.impl.client.DefaultHttpClient;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.Locator;
import org.xml.sax.XMLReader;
import android.app.Activity;
import android.app.ListActivity;
import android.content.Context;
import android.graphics.Color;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.speech.recognition.Logger;
import android.util.Log;
import android.view.UIThreadUtilities;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnFocusChangeListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
public class StationPicker extends ListActivity {
Vector<StationData> stationListVector = new Vector<StationData>();
SAXParser parser = null;
XMLReader reader = null;
XMLHandler handler = new XMLHandler();
ArrayAdapter<StationData> adapter = null;
Activity ctx = this;
class XMLHandler implements org.xml.sax.ContentHandler
{
StationData currentStation;
String lastName;
public void endDocument(){}
public void endPrefixMapping(String prefix){}
public void ignorableWhitespace(char[] ch, int start, int
length)
{}
public void processingInstruction(String s, String a){}
public void setDocumentLocator(Locator l){}
public void skippedEntity(String name){}
public void startDocument(){}
public void startPrefixMapping(String prefix, String s){}
public void characters(char[] ch, int start, int length)
{
if(lastName.equals("title") &&
currentStation.title.length() == 0)
{
currentStation.title = String.copyValueOf(ch,
start, length);
}
else if(lastName.equals("audioUrl") &&
currentStation.url.length()
== 0)
{
currentStation.url = String.copyValueOf(ch,
start, length);
}
}
public void startElement(String uri, String localName, String
qName,
Attributes atts)
{
lastName = localName;
if(localName.equals("station"))
{
currentStation = new StationData();
}
}
public void endElement(String uri, String localName, String
qName)
{
if(localName.equals("station"))
{
if(currentStation != null)
stationListVector.add(currentStation);
}
}
}
class StationData
{
public String title = "";
public String url = "";
public String toString()
{
return title;
}
}
private void initList()
{
adapter = new ArrayAdapter<StationData>(StationPicker.this,
R.layout.list_element, R.id.textElement);
setListAdapter(adapter);
}
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
try
{
setContentView(R.layout.main);
SAXParserFactory f = SAXParserFactory.newInstance();
parser = f.newSAXParser();
reader = parser.getXMLReader();
reader.setContentHandler(handler);
initList();
} catch (Exception e)
{
Log.e("StationPicker", "Parser FAIL!");
}
}
protected void onListItemClick(ListView l, View v, int position,
long id)
{
StationData selectedStation = stationListVector.elementAt
(position);
MediaPlayer player = new MediaPlayer();
try
{
player.setDataSource(selectedStation.url);
player.start();
}
catch (Exception e)
{
Log.e("PlayerException", "SetData");
}
}
public void onStart()
{
super.onStart();
Thread t = new Thread()
{
public void run()
{
HttpUriRequest request = null;
HttpResponse resp = null;
InputStream is = null;
DefaultHttpClient client = new DefaultHttpClient();
try{
//Build the request
request = new
HttpGet("http://www.wanderingoak.net/
stations.xml");
//Execute it using the default HTTP Client
settings;
resp = client.execute(request);
//Pull out the entity
HttpEntity entity= resp.getEntity();
//Snag the response stream from the entity
is = entity.getContent();
//Initalize a new XML parser
reader.parse(new InputSource(is));
Runnable r = new Runnable()
{
public void run()
{
TextView t = (TextView)
findViewById
(R.id.loadingStatus);
t.setText("Stations Loaded");
try{
for(int i=0; i <
stationListVector.size(); i++)
adapter.addObject(stationListVector.elementAt(i));
}catch (Exception e)
{
Log.e("Fail",
"Superfail");
}
getListView().invalidate();
}
};
UIThreadUtilities.runOnUIThread(StationPicker.this,r);
}
catch (Exception e)
{
Log.e("Stations()", "Exception", e);
}
}
};
t.start();
}
}
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