Yet another blog

The Prince is back in business. Mu ha ha. The new Prince Of persia is going to come out at december5,2008. Many many times later the Prince is coming back. Looking forward to this release of Prince of Persia known as THE JOURNEY BEGINS.

For more visit The official site of POP

Go prince.

Wiki Quote

If you want to read some good things then please visit this blog. This is Guru's Blog. (Lok ta je koto kisu pare, obak kora bepar :) ).

My pc got infected with a virus, it removed folder options and locked task manager, regedit and also locked display of hidden files.I don't know what else was in it's locked list. Downloaded KAV trial and scanned but still nothing solved. So a pain in ass. This tool saved my day.

Recently saikat made a multiplayer pool game which got huge populatiry. You can play the game by going here

Two story written in series by two of my friends. Here goes the Chelemanushi written by guru.

Inspired by Guru's story kutir Shilpi wrote Chelemanushi-2 :D

The thing was that they both were inspired by each other to make this stories complete.

And i liked both of the story.

Our first product XenCare SoftLock is released.

It's sole purpose is to protect

• any kind of binary file modification of your system(copy, delete,modify)
  
• protect modification of startup entry of your windows os
  

It can help you to keep your system clean from usb stick viruses any website viruses etc if you keep your system locked with it.

Hoping to release more stable version soon

More can be found at XenCare site

I made a as simple as possible Javascript game just to test the remember power of your brain, the game will show a sequence of numbers and then u have to type and see if you have matched the sequence, you can increase level,a increase in level will increase the number of numbers in queue.

The world's fastest indian- a movie worth of watching, the old Burt Munro ( Acted by Anthony Hopkins) did everything to reach his dream of making a land speed record. The movie showed how much desperate he was to achieve his dreams.

Two dialogs
Burt Munro: If you don't follow your dreams, you might as well be a vegetable.
Burt Munro: If you don't go when you want to go, when you do go, you'll find you've gone

hello. how are you?

how is everything going?
.
.
do you have dreams?



i dont


i want to hear them and make them mine



confused



*******
bla bla bla

Do you know Jason Bourne If not then you should.

This is the finishing track of bourne series movies(Extreme ways by Moby)




Extreme ways are back again
Extreme places I didn't know
I broke everything new again
Everything that I'd owned
I threw it out the window came along
Extreme ways I know will part the colors of my sea
It's a perfect colored sea
Extreme ways that help me
They help me out late at night
Extreme places I had gone
But never seen any light
Dirty basements, dirty noise
Dirty places coming home
Extreme worlds alone
Did you ever like it then?
I would stand in line for this
There's always room in life for this
Oh babe, oh babe
Then it fell apart, it fell apart
Oh babe, oh babe
Then it fell apart, it fell apart
Extreme sounds have told me
They held me down every night
I didn't have much to say
I didn't give up the light
I closed my eyes and closed myself
And closed my world and never opened up to anything
That could get me at all
I had to close down everything
I had to close down my mind
Too many things could cut me
Too much can make me blind
I've seen so much in so many places
So many heartaches, so many faces
So many dirty things
You couldn't even believe
I would stand in line for this
There's always room in life for this
Oh babe, oh babe
Then it fell apart, it fell apart
Oh babe, oh babe
Then it fell apart, it fell apart

Hold me, oh babe

Oh babe, oh babe
Then it fell apart, it fell apart Oh babe, oh babe
Then it fell apart, it fell apart Oh babe, oh babe
Then it fell apart, it fell apart
Oh babe, oh babe
Like it always does, (always does), always does (always does)

Might be downloaded from here

Bourne is great

I was trying to add an uninstall button to a setup project such that, when a user installs the application the uninstall option will also appear in the programs menu of user. The setup project was in vs.net 2003.

There was no direct way i found, two ways that came by googling

a. making a bat file that will uninstall the application

1. Create a "Uninstall.bat" and include the following line:
msiexec /x {your product code}
(Replace the "your product code" with your product code GUID.)This product id is found by going into the properties of the setup project

2. Add the BAT file to your application folder of setup project.
3. Add a shortcut in Users Programs Menu that points to the BAT file.
4. Set the "ShowCmd" property of the shortcut to "vsdscMinimized".This will minimize the bat window which sometime may feel annoying.
You can do other staffs like adding icon and rename it according to your needs. This

More info

b.Another way was to make a project that uninstalls application, this was a simple c# project

This is how they did it.
1. Create simple project UninstallApp.
2. Add in Main()

{
string[] arguments = Environment.GetCommandLineArgs();

foreach(string argument in arguments)
{
string[] parameters = argument.Split('=');
if (parameters[0].ToLower() == "/u")
{
string productCode = parameters[1];
string path = Environment.GetFolderPath(Environment.SpecialFolder.System);
Process proc = new Process();
proc.StartInfo.FileName = string.Concat(path,"\\msiexec.exe");
proc.StartInfo.Arguments = string.Concat(" /i ", productCode);
proc.Start();
}

}


3. Create new setup project
4. Add UninstallApp.exe to "Application Folder" in 'File System' part
5. In "User's Program menu" create shortcut to UninstallApp.exe and in properties of this shortcut in parameter 'arguments' insert value "/u=[ProductCode]".
6.Rebuild deployment project.

More Info

Integrating paypal to your site is easy, and they have a rich developer site to support your work. here are some links that will come handy

To start developing paypal related things first sign up in here
http://developer.paypal.com

From here you can create several dummy accounts of type business or personal and with any amount balance you wish.

Paypal also has an integration center which can help you integrate paypal with your site
https://www.paypal.com/IntegrationCenter/ic_home.html

From integration center you can get codes for buy now buttons, you can add shopping cart of your own or shopping cart provided by paypal and many more things.

During testing remember to change the different post data of paypal to this location
"https://sandbox.paypal.com" anywhere you find "https://www.paypal.com". And when you are done with testing make those to point to https://www.paypal.com

Paypals Instant Payment Notification is a great utility i found, it calls a script of you whenever a payment is made, then you can do processing like saving it in db or mailing info to somebody etc.

Enough for today

A rap song on web designing

[object]:
oi tui naki 17 tarikh e choila jabi?

[Person]:
ho

[object]:
*****

[Person]:
:(

[object]:
ken
tor na 21 tarikh e jawar kotha

[object]:
really missing u :(

[Person]:
got dc *****!
:D

[object]:
:D

[Person]:
ki koitesili abar ko

[object]:
koitesilam je tor jonne mon kharap hoitesilo

[Person]:
kalke ashbi dhanmondi ?
:D
me too
:

[object]:
tore niya ekta blog likhte chaitesilam :D
though that is a bad idea :D

[Person]:
shit man

[object]:
ekhon compose er window khuila chinta koirtesi ki lekha jay
kisu paitesi na :D

[Person]:
you blogger asshole
:D
"there's nothing to write anything about a fool" eita likhe de :D
brb
ubuntu install er ekta try dei
[Person went offline]


I will miss u

Trying to switch to the "Linux for human beings" aka Ubuntu.

The movie is over. Motor Cycle diary. This movie is the early life of (23-24) Che Guevara. Che and his friend start to travel with their bike "The Mighty One". The journey moved che and me(while watching).I was thinking of my friends while watching the movie. Some of the faces started to move around in my mind while i was watching. I was starting to map some of them's life style with those and found some. I was wondered that people like che live around us. I wanted to call those friends and say that "You are great". But didnt do that, as i found no match of me with che. My thinkings are only around me. My mappings are all with me. My mind is a selfcentered mind. I lead a monotonous life without any variations and always avoid any kind of problems coming on my way. I like to live a life alone in a shell.Even in this whole post i'm telling about me.

whatever if you ever get a chance to watch the movie watch it. Here is a wiki of Ernesto Guevara de la Serna

Che was a great leader i think :)

A song from "Taare Zameen Par". It moved me, You can have the song here
Full album
Song By ADNAN SAMI,AURIEL CORDO,ANANYA WADKAR
A Little Sweet, A Little Sour
A Little Close Not Too Far
All I Need, All I Need
All I Need Is To Be Free
(Repeat)

Chhoo Loon Main
Itna Kareeb
Chal Padun
To Kitna Door

A Little Sweet, A Little Sour...

Chhoo Loon Main Itna Kareeb
Chal Padun To Kitne Door
Sapna Ka Buna Sweater Sa Warm
Safed Baadalon Ke Paar
Mera Jahan

Let Me In Without A Shout
Le Me In I Have A Doubt
Let Me In Without A Shout
Let Me In I Have A Doubt
There Are More,Many More
Many Many Many More Like Me

Akela Nahin Main

Khuli Aankhon Se Neend Mein Chalta

Girta Zyada Kam Sambhalta

Akela Nahin Main
Khuli Aankhon Se Neend Mein Chalta

Girta Zyada Kam Sambhalta
Phir Bhi Na Koi Shaq Na Subha
Nikalega Phir Se Sooraj Jo Dooba

Hairat Ho Sabko Aisa
Ajooba Hai Mera Jahan

Open Eyed How I Run
How I Run To The Other Side
Open Eyed How I Run
How I Run To The Other Side
Then I Glide Like A Bird
I Just Want To Be

Udne Ko Sau Pankh Diye Hain
Chadne Ko Khula Aasmaan
Udne Ko Sau Pankh Diye Hain
Chadne Ko Khula Aasmaan

Mudne Ko Hai Karwat Karwat
Aur Badhne Ko Mera Jahan

Bachpan Ke Din Chaar
Na Aayenge Baar Baar
Jee Le Jee Le Mere Yaar
Jeib Khaali To Udhaar
Jee Zindagi

I am a newbie in applet programming and very bad at programming. A google programmer ;). Recently i was trying to make an applet which could upload file to a php server, i started to googling and found that there are a lot of this kind of applet and none of them are not free :(. So i wanted to write one of my own and failed immediately as i didn't know how to run an applet. Again googling and learned to write applets.
Then i started to google how to show the file system in an applet, againg googling and found a code which can show your file system in a good tree way. But it was a normal java application not an applet, but i found it was easy to add to an applet. This is the code how you can show your file system in an applet. Thanks goes to Kirill Grouchnikov.


import java.awt.BorderLayout;
import java.awt.Component;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import java.util.NoSuchElementException;

import javax.swing.Icon;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.border.EmptyBorder;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.filechooser.FileSystemView;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.TreeNode;


/**
* @author Kirill Grouchnikov
*/
public class FileTreePanel extends JPanel implements TreeSelectionListener,InterfaceHttpResponse{
String serverAddress = "http://www.smdprogramming.com/shimul/fup3/";
//String serverAddress = "http://localhost/fup3/";
/**
* File system view.
*/
protected static FileSystemView fsv = FileSystemView.getFileSystemView();

/**
* Renderer for the file tree.
*
* @author Kirill Grouchnikov
*/
private static class FileTreeCellRenderer extends DefaultTreeCellRenderer {
/**
* Icon cache to speed the rendering.
*/
private Map iconCache = new HashMap();

/**
* Root name cache to speed the rendering.
*/
private Map rootNameCache = new HashMap();

/*
* (non-Javadoc)
*
* @see javax.swing.tree.DefaultTreeCellRenderer#getTreeCellRendererComponent(javax.swing.JTree,
* java.lang.Object, boolean, boolean, boolean, int, boolean)
*/
@Override
public Component getTreeCellRendererComponent(JTree tree, Object value,
boolean sel, boolean expanded, boolean leaf, int row,
boolean hasFocus) {
FileTreeNode ftn = (FileTreeNode) value;
File file = ftn.file;
String filename = "";
if (file != null) {
if (ftn.isFileSystemRoot) {
// long start = System.currentTimeMillis();
filename = this.rootNameCache.get(file);
if (filename == null) {
filename = fsv.getSystemDisplayName(file);
this.rootNameCache.put(file, filename);
}
// long end = System.currentTimeMillis();
// System.out.println(filename + ":" + (end - start));
} else {
filename = file.getName();
}
}
JLabel result = (JLabel) super.getTreeCellRendererComponent(tree,
filename, sel, expanded, leaf, row, hasFocus);
if (file != null) {
Icon icon = this.iconCache.get(filename);
if (icon == null) {
// System.out.println("Getting icon of " + filename);
icon = fsv.getSystemIcon(file);
this.iconCache.put(filename, icon);
}
result.setIcon(icon);
}
return result;
}
}

/**
* A node in the file tree.
*
* @author Kirill Grouchnikov
*/
private static class FileTreeNode implements TreeNode {
/**
* Node file.
*/
public File file;

/**
* Children of the node file.
*/
private File[] children;

/**
* Parent node.
*/
private TreeNode parent;

/**
* Indication whether this node corresponds to a file system root.
*/
private boolean isFileSystemRoot;

/**
* Creates a new file tree node.
*
* @param file
* Node file
* @param isFileSystemRoot
* Indicates whether the file is a file system root.
* @param parent
* Parent node.
*/
public FileTreeNode(File file, boolean isFileSystemRoot, TreeNode parent) {
this.file = file;
this.isFileSystemRoot = isFileSystemRoot;
this.parent = parent;
this.children = this.file.listFiles();
if (this.children == null)
this.children = new File[0];
}

/**
* Creates a new file tree node.
*
* @param children
* Children files.
*/
public FileTreeNode(File[] children) {
this.file = null;
this.parent = null;
this.children = children;
}

/*
* (non-Javadoc)
*
* @see javax.swing.tree.TreeNode#children()
*/
public Enumeration children() {
final int elementCount = this.children.length;
return new Enumeration() {
int count = 0;

/*
* (non-Javadoc)
*
* @see java.util.Enumeration#hasMoreElements()
*/
public boolean hasMoreElements() {
return this.count < elementCount;
}

/*
* (non-Javadoc)
*
* @see java.util.Enumeration#nextElement()
*/
public File nextElement() {
if (this.count < elementCount) {
return FileTreeNode.this.children[this.count++];
}
throw new NoSuchElementException("Vector Enumeration");
}
};

}

/*
* (non-Javadoc)
*
* @see javax.swing.tree.TreeNode#getAllowsChildren()
*/
public boolean getAllowsChildren() {
return true;
}

/*
* (non-Javadoc)
*
* @see javax.swing.tree.TreeNode#getChildAt(int)
*/
public TreeNode getChildAt(int childIndex) {
return new FileTreeNode(this.children[childIndex],
this.parent == null, this);
}

/*
* (non-Javadoc)
*
* @see javax.swing.tree.TreeNode#getChildCount()
*/
public int getChildCount() {
return this.children.length;
}

/*
* (non-Javadoc)
*
* @see javax.swing.tree.TreeNode#getIndex(javax.swing.tree.TreeNode)
*/
public int getIndex(TreeNode node) {
FileTreeNode ftn = (FileTreeNode) node;
for (int i = 0; i < this.children.length; i++) {
if (ftn.file.equals(this.children[i]))
return i;
}
return -1;
}

/*
* (non-Javadoc)
*
* @see javax.swing.tree.TreeNode#getParent()
*/
public TreeNode getParent() {
return this.parent;
}

/*
* (non-Javadoc)
*
* @see javax.swing.tree.TreeNode#isLeaf()
*/
public boolean isLeaf() {
return (this.getChildCount() == 0);
}
}

/**
* The file tree.
*/
private JTree tree;

/**
* Creates the file tree panel.
*/
public FileTreePanel() {
this.setLayout(new BorderLayout());


File[] roots = File.listRoots();
FileTreeNode rootTreeNode = new FileTreeNode(roots);
this.tree = new JTree(rootTreeNode);
this.tree.setCellRenderer(new FileTreeCellRenderer());
this.tree.setRootVisible(false);

final JScrollPane jsp = new JScrollPane(this.tree);
jsp.setBorder(new EmptyBorder(0, 0, 0, 0));
this.add(jsp, BorderLayout.CENTER);

tree.addTreeSelectionListener(this);


}

testapp ta;
/**
* Creates the file tree panel.
*/
public FileTreePanel(testapp ta) {
this.ta = ta;
this.setLayout(new BorderLayout());


File[] roots = File.listRoots();
FileTreeNode rootTreeNode = new FileTreeNode(roots);
this.tree = new JTree(rootTreeNode);
this.tree.setCellRenderer(new FileTreeCellRenderer());
this.tree.setRootVisible(false);

final JScrollPane jsp = new JScrollPane(this.tree);
jsp.setBorder(new EmptyBorder(0, 0, 0, 0));
this.add(jsp, BorderLayout.CENTER);

tree.addTreeSelectionListener(this);


}
File currentFile= null;
public void valueChanged(TreeSelectionEvent e) {
// TODO Auto-generated method stub
FileTreeNode node = (FileTreeNode)
tree.getLastSelectedPathComponent();
System.out.println("slecte asldf "+node.isLeaf());
if(node.isLeaf())
{
currentFile = node.file;
System.out.println("File name "+currentFile.getName());
}
else
currentFile = null;


}


// public static void main(String[] args) {
// SwingUtilities.invokeLater(new Runnable() {
// public void run() {
// JFrame frame = new JFrame("File tree");
// frame.setSize(500, 400);
// frame.setLocationRelativeTo(null);
// frame.add(new FileTreePanel());
// frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// frame.setVisible(true);
// }
// });
// }
}




Now to add it to my applet this was the code


import java.applet.Applet;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;

import org.omg.CORBA.FREE_MEM;


public class testapp extends Applet{
JTextField field;
JButton jb;
FileTreePanel ftreePanel;
public void init() {
//Execute a job on the event-dispatching thread:
//creating this applet's GUI.

try {
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
createGUI();
}
});
} catch (Exception e) {
System.err.println("createGUI didn't successfully complete");
}

addItem(false, "initializing... ");
}

private void createGUI() {
ftreePanel = new FileTreePanel(this);
add(ftreePanel);

// File[] roots = File.listRoots();
// FileTreeNode rootTreeNode = new FileTreeNode(roots);
// this.tree = new JTree(rootTreeNode);
// this.tree.setCellRenderer(new FileTreeCellRenderer());
// this.tree.setRootVisible(false);
// add(tree);

//Create the text field and make it uneditable.
field = new JTextField();
field.setEditable(false);
field.setAutoscrolls(true);
jb= new JButton("Upload");
jb.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
uploadJob();
}

});
jb.setSize(50, 50);
//add(jb);
JPanel jp = new JPanel();
jp.add(jb);
add(jp);
//Set the layout manager so that the text field will be
//as wide as possible.
setLayout(new java.awt.GridLayout(1,0));

//Add the text field to the applet.
add(field);



//new FileTreePanel();
}

public void start() {
addItem(false, "starting... ");
}

public void stop() {
addItem(false, "stopping... ");
}

public void destroy() {
addItem(false, "preparing for unloading...");
cleanUp();
}

private void cleanUp() {
//Execute a job on the event-dispatching thread:
//taking the text field out of this applet.
try {
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
remove(field);
}
});
} catch (Exception e) {
System.err.println("cleanUp didn't successfully complete");
}
field = null;
}

private void addItem(boolean alreadyInEDT, String newWord) {
if (alreadyInEDT) {
addItem(newWord);
} else {
final String word = newWord;
//Execute a job on the event-dispatching thread:
//invoking addItem(newWord).
try {
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
addItem(word);
}
});
} catch (Exception e) {
System.err.println("addItem didn't successfully complete");
}
}
}

//Invoke this method ONLY from the event-dispatching thread.
private void addItem(String newWord) {
String t = field.getText();
System.out.println(newWord);
field.setText(t + newWord);
}

void uploadJob(){
addItem("Upload button clicked");
ftreePanel.uploadFile();
}

void showMessage(String message)
{

field.setText(message);
}

}



you will some code are missing in previous FileTreePanel which will be added later on. The next thing came to my mind is how to get the node which is clicked in the file tree. It was very easy,u have to just implement the addTreeSelectionListener. For uploading part i used the java code which was posted previously during android file upload time. This function was added with FileTreePanel.java

public void uploadFile()
{
if(currentFile!= null)
{
ta.showMessage("Uploading file"+currentFile.getAbsolutePath());
System.out.println("Current file"+currentFile.getAbsolutePath());
String fileName = null;
try {
FileInputStream fis = new FileInputStream(currentFile);
fileName = currentFile.getName();
HttpFileUploader htfu = new HttpFileUploader(serverAddress+"test2.php","pngData", "", null,this);
System.out.println("File Name "+serverAddress+"test2.php");
htfu.doStart(fis,fileName);
ta.showMessage("Please wait");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
ta.showMessage("File not found exception");
}
//ta.showMessage("Done Uploading file u can check at "+serverAddress+"uploads/"+fileName);

}
else
ta.showMessage("Not a file");

}


Now after completing everything the applet was running smoothly through Eclipse ide. But when i tried to run in browser the applet was not showing the file tree. I was in a problem then , I found that to access client pc resources you need to sign your applet with lengthy process. This link came great great help to me.

How to sign an applet

So after signing the applet it started to show it's face in the browser. The whole process took me 3 long days,damn i'm the slowest learner. You can check it here I don't know how long it will be available here. Whatever i am a happy monkey now. :D. You can find uploaded files here

[edited later]
The quest was not over yet, i was using jdk6 with jre6, so my applet was not showing into my friends pc whose jre was jre5.0. So i had to chnage the settings in eclipse and then remake the jar and the whole process.

I needed to load remote images to my application and bind this image to an ImageView object. HttpURLConnection is used to download the image data and BitmapFactory is used to produce the bitmap which will be used as imageview resources.

Here is the layout file

XML:

< ?xml version="1.0" encoding="utf-8"?>
< LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
< TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Hello World, HTTPImage load test"
/>
< Button id="@+id/get_imagebt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Get an image"
android:layout_gravity="center"
/>
< ImageView id="@+id/imview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
/>
< /LinearLayout>


The java code goes like it


import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;

public class HTTPTest extends Activity {


ImageView imView;
String imageUrl="http://11.0.6.23/";
Random r;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
r= new Random();

Button bt3= (Button)findViewById(R.id.get_imagebt);
bt3.setOnClickListener(getImgListener);
imView = (ImageView)findViewById(R.id.imview);
}

View.OnClickListener getImgListener = new View.OnClickListener()
{

@Override
public void onClick(View view) {
// TODO Auto-generated method stub

//i tried to randomize the file download, in my server i put 4 files with name like
//png0.png, png1.png, png2.png so different file is downloaded in button press
int i =r.nextInt()%4;
downloadFile(imageUrl+"png"+i+".png");
Log.i("im url",imageUrl+"png"+i+".png");
}

};


Bitmap bmImg;
void downloadFile(String fileUrl){
URL myFileUrl =null;
try {
myFileUrl= new URL(fileUrl);
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
HttpURLConnection conn= (HttpURLConnection)myFileUrl.openConnection();
conn.setDoInput(true);
conn.connect();
int length = conn.getContentLength();
int[] bitmapData =new int[length];
byte[] bitmapData2 =new byte[length];
InputStream is = conn.getInputStream();

bmImg = BitmapFactory.decodeStream(is);
imView.setImageBitmap(bmImg);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}


The code is pretty simple and easy, most of you might already have done this, i am a slow learner, i tried different ways first, i tried to read the whole bytes of image data, do other trial and error method. I was confused about the Bitmap tranformation technology. Then i found that there is a built in class known as BitmapFactory, it can produce bitmap directly from stream. This saved a lot of my efforts. Hope it will come useful to you.

Happy andcoding :)

Yesterday, the whole day i was trying to post a file to a php server. The whole day and evening i tried and failed. I googled, searched in forum and did a lot of other stuffs. I couldn't succed, at last when i was frustrated on me, then i found another tutorial in a forum, this time it worked. mu ha ha :) (Copy paste rulllzz, so i should never try myself anything :(). The code simulates file posting to a php server. So it will work with servers where file upload from a server is supported. Here goes the code

The php code used in server

< ?php

$target_path = "uploads/";

$target_path = $target_path . basename( $_FILES['uploadedfile']['name']);

if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
echo "The file ". basename( $_FILES['uploadedfile']['name']).
" has been uploaded";
} else{
echo "There was an error uploading the file, please try again!";
}

? >


The android code goes here

import java.io.BufferedInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import org.apache.commons.codec.binary.Base64;
import org.apache.http.util.ByteArrayBuffer;

import android.util.Log;

public class HttpFileUploader implements Runnable{

URL connectURL;
String params;
String responseString;
InterfaceHttpUtil ifPostBack;
String fileName;
byte[] dataToServer;

HttpFileUploader(String urlString, String params, String fileName ){
try{
connectURL = new URL(urlString);
}catch(Exception ex){
Log.i("URL FORMATION","MALFORMATED URL");
}
this.params = params+"=";
this.fileName = fileName;

}


void doStart(FileInputStream stream){
fileInputStream = stream;
thirdTry();
}

FileInputStream fileInputStream = null;
void thirdTry(){
String exsistingFileName = "asdf.png";

String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
String Tag="3rd";
try
{
//------------------ CLIENT REQUEST

Log.e(Tag,"Starting to bad things");
// Open a HTTP connection to the URL

HttpURLConnection conn = (HttpURLConnection) connectURL.openConnection();

// Allow Inputs
conn.setDoInput(true);

// Allow Outputs
conn.setDoOutput(true);

// Don't use a cached copy.
conn.setUseCaches(false);

// Use a post method.
conn.setRequestMethod("POST");

conn.setRequestProperty("Connection", "Keep-Alive");

conn.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);

DataOutputStream dos = new DataOutputStream( conn.getOutputStream() );

dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\"" + exsistingFileName +"\"" + lineEnd);
dos.writeBytes(lineEnd);




Log.e(Tag,"Headers are written");

// create a buffer of maximum size

int bytesAvailable = fileInputStream.available();
int maxBufferSize = 1024;
int bufferSize = Math.min(bytesAvailable, maxBufferSize);
byte[] buffer = new byte[bufferSize];

// read file and write it into form...

int bytesRead = fileInputStream.read(buffer, 0, bufferSize);

while (bytesRead > 0)
{
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}

// send multipart form data necesssary after file data...

dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);

// close streams
Log.e(Tag,"File is written");
fileInputStream.close();
dos.flush();

InputStream is = conn.getInputStream();
// retrieve the response from server
int ch;

StringBuffer b =new StringBuffer();
while( ( ch = is.read() ) != -1 ){
b.append( (char)ch );
}
String s=b.toString();
Log.i("Response",s);
dos.close();


}
catch (MalformedURLException ex)
{
Log.e(Tag, "error: " + ex.getMessage(), ex);
}

catch (IOException ioe)
{
Log.e(Tag, "error: " + ioe.getMessage(), ioe);
}
}

}

Many of the headers included in the above file is not required, i was trying and failing :).

Now to upload file here is the java code from my activity class


public void uploadFile(){


try {
FileInputStream fis =this.openFileInput(NAME_OF_FILE);
HttpFileUploader htfu = new HttpFileUploader("http://11.0.6.23/test2.php","noparamshere", NAME_OF_FILE);
htfu.doStart(fis);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}



The main advantage is that the way it posts data to the server is similar to a Html Form posting data to a php server. Hope it might be useful for me in future, so i blogged it, if others are helped then that would be great.You can visit www.anddev.org for more and more tutorials. Thanks for reading my bad post :)

Did you ever fall in loop when traversing through activities, like one activity launching another and the other launching the previous one, then back pressing returns to that activity. This can be prevented very easily, when you think that the second activity is no more required, you just can call finish() function of that activity. This will solve some problems, though this looping happens only to bad programmers like me :D. Here is an interesting thing, when a subactivity finishes it's job it can send data back to the main activity who started it, for this the main activity has to override a function like this

@Override
protected void onActivityResult(int requestCode, int resultCode,
String data, Bundle extras) {
// TODO Auto-generated method stub
//super.onActivityResult(requestCode, resultCode, data, extras);
if(requestCode == SOME_INTEGER_WHICH_WAS_USED_DURING_CREATION_OF_ACTIVITY_AS_INTEGER_PARAM+OF_INTENT){
String text = "";

// This is a standard resultCode that is sent back if the
// activity doesn't supply an explicit result. It will also
// be returned if the activity failed to launch.
if (resultCode == RESULT_CANCELED) {
text ="Canceled";

// Our protocol with the sending activity is that it will send
// text in 'data' as its result.
} else {
if (data != null) {
text = data;
}
}
}
}


So when finish() function is called from subactivity, this function is called in mainActivity. This code is executed during returning from subactivity class.


setResult(RESULT_OK, "SOMETEXT");
finish();

Most of the codes are copied from APIDemos.

Launching an activity is not all. After launching another subactivity/activity you might want to send some data/parameter to that activity. This is done in a new way known as Bundle. To launch an activity we create an intent. Suppose our intent name is "intent". We can put data with the intent like this

intent.putExtra("keyName", "somevalue");

We can add multiple entries here. This is a key,value pair. So to receive this data from the receiving activity we have to write this code

Bundle extras = getIntent().getExtras();
if(extras !=null)
{
String value = extras.getString("keyName");
}


This is how we can send data to another activity, here simple string is sent, complex structures like array can be also sent through bundle. Didn't use those as i am a bad bad programmmer and very bad at reading documentations ;).

First create a class extending some activity(Activity/ListActivity/MapActivity etc).
You have to put this activity reference in AndroidManifest xml file like this


< activity class=".nameOfTheClass" / >


so that android can find this activity.

To lauch an activity from an activity, here is a simple code.

Intent i = new Intent(this, newActivity.class);
startSubActivity(i, ACTIVITY_CREATE);

Here Activity_create is a simple integer declared.

I don't know the details so i am not going into those, i understand nothing, i can do copy paste well :D. And google is there ;).

It's so much easy to show map in Android, just 4 lines of code. In eclipse, create an Android project, in the projects main class extend it by MapActivity. Then in main layout file (main.xml) add the following lines


android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" />


The java file will look something like it

public class MapViewer extends MapActivity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
}
}


Fix imports by pressing Ctrl+Shift+O
Run the project, u will see the map, no key event is attached so use your mouse to
move or zoomin/out.

Here is the source code

New year, new journey, new company , new jobs , new works , new learning , new tensions and new challenges. Everything is new but we can't forget the good old days !!!

Happy New Year , let the game begin.

Recently i was in a nasty problem. Whenever i started my emulator it was showing some error message and said that it could not start this/that. And whenever i wanted to access contacts it was showing exceptions. So i started to do what i do, that is googling.

After some googling i decided to remove all the applications installed in my emulator. And that was very easy too. After erasing it all worked well.

Now how to erase those apps,
Go to the home directory of your android sdk through command prompt. Then go to tools. Then in command window type "emulator -wipe-data" and press enter. This will remove all the datas/apps installed in emulator. It solved my exception problems.

How to erase single application from command line:

First,make sure the emulator is running.Then follow below steps:
1. go to tools directory in command
2. adb shell
3. cd /data/app
4. ls (It will display all the .apk installed in your emulator)
5. rm ***.apk(which you want to remove)
6. exit


Check this link

Here is a good article on how to launch an activity during startup of the emulator

launch on startup

You can test the startup by going to the home_directory_of_android_sdk/tools/ then run the emulator.exe, you will see your startup application running after loading the emulator.