Communication is very important between the people in all areas, why because through communication we can share knowledge, exchange ideas, chat with friends etc.,
This Bluetooth Chat Android system project can be installed into various Androids and other supported android devices and can be used to send files from node of the system to another node of the system. The files or data contained in the files can be sent in the form of bits and frames format. The user just needs to have Bluetooth support on their device and send to another device via the Bluetooth connection. Two devices can communicate with each other using this project of Android Bluetooth Chat.
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➢ Scanning for other Bluetooth devices
➢ Querying the local Bluetooth adapter for paired Bluetooth devices
➢ Establishing RFCOMM channels/sockets
➢ Connecting to a remote device
➢ Transferring data over Bluetoot
This application begins searching for devices as soon as it is opened. Options menu appear only after a successful or unsuccessful search is complete. Other options are new message alert - vibrate or sound, and refresh rate setting ranging from 30 seconds to three minutes. Users can manually refresh the list of users as well. Select a user from the list and use Options.
The Bluetooth Adapter is the entry-point for all Bluetooth interaction. Using this, you can discover other Bluetooth devices, query a list of bonded (paired) devices, instantiate a Bluetooth Device using a known MAC address, and create a Bluetooth Server Socket to listen for communications from other devices. Use this to request a connection with a remote device through a Bluetooth Socket or query information about the device such as its name, address, class, and bonding state. Represents the interface for a Bluetooth socket (similar to a TCP Socket). This is the connection point that allows an application to exchange data with another Bluetooth device via InputStream and OutputStream.
In the socket programming model, a socket represents an endpoint of a communication channel. Sockets are not connected when they are first created, and are useless until a call to either connect (client application) or accept (server application) completes successfully. Once a socket is connected, it can be used to send and receive data until the connection fails due to link error or user termination. An RFCOMM Bluetooth Socket used to accept incoming connections must be attached to operating system resources with the bind method. bind takes in a tuple specifying the address of the local Bluetooth adapter to use and a port number to listen on. Usually, there is only one local Bluetooth adapter or it doesn't matter which one to use, so the empty string indicates that any local Bluetooth adapter is acceptable. Once a socket is bound, a call to listen puts the socket into listening mode and it is then ready to accept incoming connections
You must request the BLUETOOTH permission in order to perform any Bluetooth communication, such as requesting a connection, accepting a connection, and transferring data. Before your application can communicate over Bluetooth, you need to verify that Bluetooth is supported on the device, and if so, ensure that it is enabled. you need to ensure that Bluetooth is enabled. A dialog will appear requesting user permission to enable Bluetooth. Once a connection is made with a remote device for the first time, a pairing request is automatically presented to the user. When a device is paired, the basic information about that device (such as the device name, class, and MAC address) is saved and can be read using the Bluetooth APIs. Using the known MAC address for a remote device, a connection can be initiated with it at any time without performing discovery (assuming the device is within range).
Check the manual that came with your cellular phone and read the section on Bluetooth capabilities to see if your phone has a Bluetooth password. Note down the password. Power on your cellular phone and access the "Settings" option in the main menu. Choose the "Bluetooth" option if it is immediately available, or choose "Connections" and then "Bluetooth." Press the option for "Activate Bluetooth." Enter in the Bluetooth code that you noted down before if your phone prompts you for one, or instead enter the standard code of "1111" if you don't have your manual and aren't sure what the password is. Repeat the process on the second phone. Navigate to the folder on your phone that holds the file you want to transfer. Choose the file and then choose the option to "Send." Press the option to "Send to Phone" and then press the button to send to a connected Bluetooth phone. Enter in the phone number of the other phone if your cell does not prompt you to send to an activated Bluetooth phone in range
• There is always a room for improvements in any software package, however good and efficient it may be done.
• But the most important thing should be flexible to accept further modification.
• Right now we are just dealing with text communication
➢ Android Programming: The Big Nerd Ranch Guide 5th Edition
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➢ The Busy Coder's Guide to Advanced Android Development