Muhammad Allam's Blog

Display GIF image using J2me

2010-03-15T05:09:00.000-07:00

Peace upon you,
displaying gif is a common problem in j2me if u search about it in google u will find many classes used to encode gif but it's simply as shown in this code:

player = Manager.createPlayer(getClass().getResourceAsStream("/Image path"),
"image/gif");
player.realize();

if ((vidc = (VideoControl) player.getControl("VideoControl")) != null) {
videoItem = (Item) vidc.initDisplayMode(VideoControl.USE_GUI_PRIMITIVE, null);
//vidc.setDisplaySize(240, 140);
}

append(videoItem);
midlet.getDisplay().setCurrent(this);
while (true) {
player.start();
}

Enjoy
Happy coding;-)

Connecting mobile to PC

2007-08-02T03:06:00.000-07:00

Peace upon you
There are many ways to establish connection between mobile and Personal computer. First you can use AT commands but my essay focus on using Bluetooth to establishing the connection. J2SE used in personal computers does not support the JSR-82 API by default. There are many frameworks that allow you to work with BlueTooth with J2SE. Framewoks such as :

ROCOCO Software's Bluetooth development tools and technology licensing kit use standard Java application programming interfaces (APIs) for Bluetooth wireless technology (JABWT or JSR82). I think it isn't free but you can download non-commerical use demo.

avetanaBluetooth is a JSR-82 implementation provides Bluetooth functionalities to Java software in a standardized way. avetanaBluetooth is available for Windows (98SE - XP SP2), MacOS X, Linux and WM
2003SE - WM5 plattforms. but it is'nt free you can download demo that will expire after 14 days, it Force you to connect to limited number of PC because you must specify the BT addresses of PC that you want to connect to.

BlueCove is a LGPL licensed JSR-82 implementation on Java Standard Edition (J2SE) that currently interfaces with the Microsoft Bluetooth stack. Originally developed by Intel Research and currently maintained by volunteers . you can download src code from http://bluecove.sourceforge.net/ . I used before at VIDETA. it's based on Microsoft Bluetooth stack, To know is your BT supported by windows bluetooth stack check this list http://support.microsoft.com/default.aspx?kbid=841803
If you found your BT in the list, Congratulation you are lucky so consult the BT vendor's website to know how to configure your BT to be adapted by windows BT stack. In my VIDETA case I use Toshiba Corporation bluetooth specification 2.0, 1.2, 1.1 but I must configure it to be supported by windows bluetooth stack because the default is Widcomm stack and BlueCove didn't support it.
hopefully I cleared something to you.

Salam

dialogue 2ejabshan guy hehe :D‎

2007-07-31T14:03:00.000-07:00

Peace upon you
Since three weeks Amr Eissa was send me cool message, When I read it -every time- I laugh a lot and a lot and still read this when I open my inbox. so I presenting this message that perhaps make you happy.This message contain a conversation between female reporter (who work at foreign Newspaper) and egyptian guy(mowatin ma67ooon).

A foreign Newspaper wants to publish a report about the life inEgypt,So they send a female reporter to interview the commoncitizen in Egypt..when she arrives at Cairo..she picks a randomguy, and starts her interview.
Reporter: Hi
Egyptian: We 3alkom el salam ya 2otta

Reporter: Do you speak English?
Egyptian: Berfect

Reporter: Do you mind if i interview u?
Egyptian: No, i dont have a mind

Reporter: What's your name?
Egyptian: Taha

Reporter: Sex?
Taha: I love it
Reporter: Oh no, i meant male or female?
Taha (yelling): what do you sink?
Reporter: It's just for the sake of the report..never mind...male....
Taha: yas male..and i can brove it any time you want

Reporter: No,thanks,I'll take you for your word...so..how do you find life here in Egypt?
Taha: Egybt..very nice cantry..nice wezar..nice food..byramidz

Reporter: oh well..beside the weather and the pyramids..what else do you like in your country?
Taha: Byramids,nice wezar,nice food

Reporter: Ok..let's move on..what do you do?
Taha: I am very well, sank you

Reporter: No, I mean do you have a job?
Taha (looking around him and whispering): Jobat?..no i dont have any(jobat)..lessa mastaba7nash..do you have a (job) with you?..we can esmoke it in my car..dont warry about bolice

Reporter: Oh my god, DO YOU WORK?
Taha: Yas yas..Taxi drivar

Reporter: What do you think about the traffic problem in egypt?
Taha: Very big broblem..very much cars..you see?..but za guvurment is trying to make it bettar..zey did za circle street and za me7war street..and zey make all streets one way so if you go..you cant comeback..niahahaha3

Reporter: What about the economic problems in Egypt?
Taha: I do not undurstand what u say

Reporter: I mean..how do u deal with money problems in Egypt?
Taha: No NO NO..Egybt very rich cantry...we have alot of cotton..alot of water..and we have byramidz

Reporter: So do you make a lot of money?
Taha: No no.. it is not legal to make money..one frend i know make money at home..and he go to brizon..if you make money at home..you can only give it to za banzeena man..zey take any money

Reporter: let me rephrase..since Egypt is a rich country.. do you have a lot of money?
Taha: me?! ..Not alot..but I eat and drink Al7amdulelah?

Reporter: Then where does all the money go?
Taha: Guvurment

Reporter: And what does the government do with the money?
Taha: Zey Build circle street,me7war street and make all streets one way

Reporter: well, Ok...Do you vote?
Taha: What duz zat mean?

Reporter: Do you choose your president
Taha: Mubarak?
Reporter: yes
Taha(nervously): i didnt give my voice..but if i was..i will give him my voice
Reporter: Why him?
Taha: Because he was an airoblane in za war..he waz za leadar airoblane Reporter: But there are no wars right now
Taha: But if we have war..you see?...we know we will have a very good airoblane in it

Reporter: what about the last 26 years ?
Taha: I got marry..and have 3ala2 and Amira..and drive taxi

Reporter: No, i meant what did Mubarak do for Egypt in the last 26 years
Taha: He build circle street, me7war street and make all streets one way

Reporter: Thank you very much for your time Mr. Taha
Taha: No broblem,only 10 bound

Reporter: I never said i will pay you for this
Taha: Ok..just give me the (job) then..we smoke, and make head
Reporter: Grrrrrrrr
Taha: ok ok..need a Taxi?

copied,,

Are you Addicted to Blogging ?

2007-07-25T12:39:00.000-07:00

peace upon you

This cool test that test your addiction to Blogging.

My result is:

Do you think i'm Addicted?

Any way try it, http://mingle2.com/

salam

J2ME BlueTooth programming(Episode 2)

2007-06-29T07:17:00.000-07:00

Peace upon you,
I apology about delaying but I'm sure you forgive me this delay because you know I'm really so busy. In first episode we got introduction about BT and also knew BT Features.Ok let's dig into more details. In this episode after reading it, you should knew terminology of Bluetooth Network Topology , Bluetooth Communication Types , Java BlueTooth API (JABWT) and The Bluetooth protocol stack.

Bluetooth Network Topology
When two or more Bluetooth-enabled devices come within range and establish a connection, a personal area network is formed. A personal area network can either be a piconet or a scatternet.

Piconet: Is a single master and up to seven slaves. No matter what kind Bluetooth devices are involved (whether they are phones, access points, PDAs,laptops, headsets, etc.) The master of the piconet is the one that initiates the connection. The device that accepts the connection automatically becomes the slave. Master/slave roles are not predefined; so if a piconet exists between a laptop and a PDA, either device could be the master or the slave.

Scatternet: Is a scatternet is essentially a chain of piconets. A scatternet is formed when the slave of a piconet also become the master of its own piconet. Figure 1.0 show the Piconet and Scatternet.

Bluetooth Communication Types

There are three types of communication protocols defined inside Bluetooth technology:

OBEX: The "Object Exchange" communication Protocol is used to Exchange Physical data such as Files, images, and so on in binary Format.

L2CAP: The "Logical Link Control and Adaptation Protocol" used to send Packets between host and client.

RFCOM: The "Radio Frequency COMMunication" is very easy and not Complicated .it is used to stream simple data.

Java Bluetooth API (JABWT)

Sun Java has introduced the Bluetooth JSR82 API package.
http://jcp.org/aboutJava/communityprocess/final/jsr082/ The JSR82 API has capability to provide all three kinds of communications: Obex, L2CAP, or RFCOMM.

javax.bluetooth The core Bluetooth API.

javax.obex The Object Exchange (OBEX) API.

*So what is the JSR-82?

The JSR-82 is the official Java Bluetooth API, which was standardized by Motorola and the following companies in the Java Community Process

Sun Microsystems.

IBM.

Nokia.

Sony Ericsson.

Symbian.

You can find a list of commercially available JSR-82 device
http://www.javabluetooth.com/jsr82devices.html on our JSR-82 Devices page.

The Bluetooth protocol stack

What's the purpose of the Bluetooth stack? The stack is the piece of software (and firmware) that controls your Bluetooth device. Figure 2 details the protocol stack.

The bottom layer of the stack is the HCI, the Host Controller Interface. This layer is literally the interface between the host (your computer or Hardware) and the controller (the Bluetooth device). As you can see, all other layers go through the HCI.
The layer above the HCI is L2CAP, the Logical Link Controller Adaptation Protocol. This layer acts as the data multiplexer for all other layers.
The next layer is BNEP, the Bluetooth Network Encapsulation Protocol. Using BNEP, you can run other networking protocols, such as IP, TCP, and UDP, over Bluetooth.
RFCOMM is known as the virtual serial port protocol because it allows a Bluetooth device to simulate the functions of a serial port.
The OBEX protocol layer is implemented above the RFCOMM layer and is useful when you want to transfer data as an object, such as files.
SDP is the Service Discovery Protocol layer, which is used whenever you want to find services on a remote Bluetooth device.
The final two layers, AVCTP and AVDTP are used for the control and distribution of audio and video over Bluetooth. AVCTP and AVDTP are relatively new additions to the Bluetooth protocol; they are used when you want to control the functions of a media player or if you want stream audio in stereo.

In the next episode I will expose to you simple chat program between two mobiles.Be wiz us

salam

J2ME Bluetooth programming (Episode 2)

2007-06-29T06:37:00.000-07:00

Peace upon you,

I apology about delaying but I'm sure you forgive me this delay because you know I'm really so busy. In first episode we got introduction about BT and also knew BT Features.Ok let's dig into more details. In this episode after reading it, you should knew terminology of Bluetooth Network Topology , Bluetooth Communication Types and Java BlueTooth API (JABWT)

Bluetooth Network Topology

When two or more Bluetooth-enabled devices come within range and establish a connection, a personal area network is formed. A personal area network can either be a piconet or a scatternet.

Piconet: Is a single master and up to seven slaves. No matter what kind Bluetooth devices are involved (whether they are phones, access points, PDAs,laptops, headsets, etc.) The master of the piconet is the one that initiates the connection. The device that accepts the connection automatically becomes the slave. Master/slave roles are not predefined; so if a piconet exists between a laptop and a PDA, either device could be the master or the slave.

Scatternet: Is a scatternet is essentially a chain of piconets. A scatternet is formed when the slave of a piconet also become the master of its own piconet.

J2ME BlueTooth programming(Episode 2)

2007-06-21T23:46:00.000-07:00

Getting phone number , IMEI and handle incoming calling

2007-06-19T10:55:00.000-07:00

Peace upon you
Why I wrote this post? because many friends asked me about these following question to use them at GPand also I faced the same problems when I worked at BlueCom project(aimed to extends the original Bluetooth range from 10 meters to virtually unlimited range throw in system access points). I decided to send a message to receiver using mobile number so my first step access contact list using PIM API'S then display it(Contact list) to user when user choose specific person by his name the message will send to him but in vicinity there are many peoples opened BlueTooth, are able to receive any message so we encrypted the message and send with the packet the receiver phone number, any one in my vicinity(Scatternet) will receive it but the message will not displayed to him because it' was not relate to him As when he receive it we check the phone number of this person with the phone number attached to message if not the program will not notify him that he recive message.

let's see the common questions
Q1: How to get my own phone number ?
To get phone number using J2ME IS NOT POSSIBLE but there is tender solution:DJUST ASK USER ABOUT IT. yeah it's simple solution that we used in BlueCom but I think it's impractical, there is great solution for it using C++see this link http://wiki.forum.nokia.com/index.php/How_to_get_my_own_phone_number

Q2: how I can retrieve incoming call with j2me?
I think the incoming call handling differs from whether it is a MIDP1.0 phone or MIDP2.0 phone. As far as I know this is not possible in J2ME nowadays, but it's going to be changed shortly by the MTA - JSR 253: Mobile Telephony API.
Check the links below:http://developers.sun.com/learning/j...ty/TS-7634.pdf & http://www.jcp.org/en/jsr/detail?id=253

To retrive icomming call use C++ at symbian OS
[code]
RMobileCall m_currentCall;
m_currentCall.OpenExistingCall(iLine, iIncomingCallName);
RMobileCall::TMobileCallInfoV1 callInfo;
RMobileCall::TMobileCallInfoV1Pckg callInfoPckg(callInfo);
m_currentCall.GetMobileCallInfo(callInfoPckg);
TBuf<50> aCallNumber;
aCallNumber.Copy(callInfo.iRemoteParty.iRemoteNumber.iTelNumber);
[/code]

Q3: how to get IMEI (International Mobile Equipment Identity)?
All mobile phones have their own unique IMEI number (can be shown by dialing *#06# on phone). use this method to get IMEI System.getProperty(parameter).;
This parameter depends on phone vendors In Siemens parameter will be com.siemens.IMEI In Nokia parameter is com.nokia.mid.imei , In Nokia, you must sign midlet to get IMEI Code( it's another story I will talk about it in more details)

hopefully this will help you:)
Salam

Getting started with J2ME BlueTooth programming(Episode 1)

2007-06-17T07:54:00.000-07:00

Abstract
Electronic devices connect to one another in a variety of ways where the most famous wireless technologies are infraree and Bluetooth. Infrared is the technology that you can see in TV remote controls or air conditioner remotes where the communication should be pointed to the target device. WiFi technology is used for strong and wide area communication where wireless communication can be made. A cable connects a computer's processing unit to a display, a data cable and a docking cradle connect a personal digital assistant (PDA) or a cellular phone to a computer, radio
waves connect a cordless phone to its base unit, and an infrared beam connects a remote control to a television. That's where Bluetooth comes in.Bluetooth technology is the most used temporary communication technology, Especially inside mobile devices, palm tops, pocket PCs, and so forth. It can be used to exchange objects, packets, or a simple stream
Content of this tutorial

What is Bluetooth? , Bluetooth Network Topology , Bluetooth Communication Types , What's JABWT & JSR82Bluetooth stack layer , Code and Explanation and finally The last word.
Let's get started!

What's Bluetooth?
Bluetooth is a wireless communication protocol that Ericsson Mobile Communications started developing the Bluetooth system in 1994, looking for a replacement to the cables connecting cellphones and their accessories. It's supports distances equal up to 30 feet, or to 10 meters but consumes less power, and transmits at lower speeds. Bluetooth is very attractive to phone and PDA manufacturers due to its low power consumption rate. The Bluetooth system is named after a tenth-century Danish Viking king, Harald Bltand, who united and controlled Norway and Denmark. The first Bluetooth devices hit the market around 1999.

Bluetooth vs. Infrared
Home electronics devices like TVs and VCRs communicate using beams of light in the infrared spectrum. Infrared is fairly reliable and doesn't cost much to build into devices. It does have drawbacks

1-Its line of sight, so sender must align with its receiver.
2- Its one to one, so a device can't send to multiple receivers at the same time.

Bluetooth vs. 802.11b
IEEE 802.11b connects devices in a wireless local area network (LAN), while Bluetooth
connects devices in a Personal Area Network (PAN).
To know about it visit http://wifinetnews.com/archives/001166.html

Bluetooth Features
The major features of Bluetooth are:
1-Bluetooth is wireless and automatic. You don't have to keep track of cables, connectors,and connections, and you don't need to do anything special to initiate communications.Devices find each other automatically and start conversing without user input, expect where authentication is required; for example, users must log in to use their email accounts.
2-Bluetooth is inexpensive. Market analysts peg the cost to incorporate Bluetooth technology into a PDA, cell phone, or other product at around $20 now, and say that it could fall to as little as $5 per unit.

3-Bluetooth handles both data and voice. Its ability to handle both kinds of transmissions simultaneously makes possible such innovations as a mobile hands-free headset for voice with applications that print to fax, and that synchronize the address books on your PDA, your laptop, and your cell phone. Signals are omni-directional and can pass through walls and briefcases. Communicating devices don't need to be aligned and don't need an unobstructed line of sight.

Conclusion
In this episode I show to you basics of BT.In the next episode ISA I will discuss BT topology , types of communication protocols defined inside Bluetooth technology and what's JABWT

Hello blogging world..!

2007-06-17T01:03:00.000-07:00

Peace upon you,
MMMM Where should I start? let's see, my name is Muhammad Allam I have..., NO.. NO it's traditional beginning let's see again. Since three years ago, Every day I decided to create Blog but I'm lazy ,the time has come I took a decision to create Blog. This is my first blog-entry so I thought I’d introduce myself and what I’ll be doing here. My name is Muhammad Elsayed Allam.student at FCI Menoufia university (Rabena yostor elnatiga enharda ) ,My age is 20 I think I still young man:D. My Hobbies are Reading especially in Programming, psychology and parapsychology,Writing articles at Programming in my spare time, Listening Music, Playing football and ping pong.Play computer games and developing simple games such as HITS simple game at mobile using J2ME .In this Blog you will find all things about me, my sakes , my thoughts , my articles in programming.
Any way if you have a question regarding any posts , always feel free to reply to a post here that relates to your query or email me directly @
Eng_3llam@hotmail.com