ANDROID CHAT APPLICATION BASED
ON USER HOBBY USING JAVA
A PROJECT REPORT
Submitted by
PRATHEEKS V
(710719205035)
RAMPRADEEP K
(710719205040)
YUVARAJA M
(710719205059)
BACHELOR OF TECHNOLOGY
IN
INFORMATION TECHNOLOGY
Dr. N.G.P. INSTITUTE OF TECHNOLOGY, COIMBATORE – 641048
ANNA UNIVERSITY: CHENNAI 600 025
JUNE 2022
ANNA UNIVERSITY: CHENNAI 600 025
BONAFIDE CERTIFICATE
Certified that this project report “ANDROID CHAT APPLICATION BASED ON
USER HOBBY USING JAVA” is the bonafide work of “PRATHEEKS V
(710719205035), RAMPRADEEP K (710719205040), YUVARAJA M
(710719205059)” who carried out the project work under my supervision.
SIGNATURE
SIGNATURE
Dr.M. KRISHNAMOORTHI M.E., Ph.D.,
Dr. D. PAVITHRA M.E., Ph.D.,
HEAD OF THE DEPARTMENT
SUPERVISOR
Professor & Head
Assistant Professor
Department of Information Technology,
Department of Information Technology,
Dr. N. G. P Institute of Technology,
Dr. N.G.P Institute of Technology,
Kalapatti Road,
Kalapatti Road,
Coimbatore-641 048.
Coimbatore-641 048.
Submitted for the University Project Viva-Voce held on
____________
_____________
INTERNAL EXAMINER
EXTERNAL EXAMINE
ACKNOWLEDGEMENT
We extend our heartiest thanks to Dr. NALLA G. PALANISWAMI, Chairman,
KMCH & Dr. N.G.P. Educational Institutions for providing us the necessary
infrastructure to do our project work.
We express our gratitude to Dr. THAVAMANI D. PALANISWAMI, Secretary, Dr.
N.G.P. Institute of Technology, for providing us the facilities to do our project work.
We would like to express our hearty thanks and gratitude to Dr.S.U. PRABHA M.E.,
Ph.D., Principal, Dr. N.G.P. Institute of Technology, for her earnest encouragement.
We extend our deep sense of gratitude to Dr.M. KRISHNAMOORTHI M.E., Ph.D.,
Head of the Department, Department of Information Technology, for his valuable
guidance and constructive suggestion at all stages of our project from inception to
completion.
We express our hearty thanks to our project guide, Dr.D. PAVITHRA M.E., Ph.D.,
Assistant Professor, Department of Information Technology, for her valuable guidance
and timely help for completing our project.
We express our sincere thanks to our project coordinator Mrs. BIJI ROSE M.E.,
Assistant professor, Department of Information Technology, for her support in
developing our project.
We would also like to express our gratitude to the faculty members of Department of
Information Technology and also to our family for their kind patronage.
ABSTRACT
The Mobile devices have a huge impact on human life in this technological era. New
technologies have evolved rapidly to make our life easier and more convenient.
Millions of mobile applications have been developed to suffice our needs, and the chat
application is one of the most essential software that every handheld communicating
device should have. The users need a chat application which is easy to use, fast and
secure.
Our purpose is to develop a mobile messaging application that can connect users
with each other for communication purpose based on their hobby.
This application was built using Java and Firebase. Android is a mobile
operating system exclusively created and developed for handheld devices. Java is a
programming language that is a faster and efficient programming language to learn
with less syntax to use for developing an android application. The database of this
application is stored on Firebase which is a cloud-service and a backend development
platform. Firebase will keep the data more secure and will increase the performance of
the application. In conclusion, the application is named as “Viber” with specific
functions that meets the basic needs of a messaging application with an easy-to-use
user interface.
KEYWORDS: Communications; firebase; android; Instant messaging; real-time
databases; group messaging; hobby;
i
TABLE OF CONTENTS
CHAPTER
TITLE
NO
1
INTRODUCTION
1.1 ANDROID OPERATING SYSTEM
1.2 ANDROIDAPPLICATION DEVELOPED USING
PAGENO
1
2
2
JAVA
2
1.3 OBJECTIVE OF THE PROJECT
1.4 METHODOLOGY
LITERATURE SURVEY
2.1 INTRODUCTION
2.2 LITERATURE REVIEW
2.2.1 Android Based Instant Messaging Application
Using Firebase
2.2.2 Android Chat Application
3
3
5
5
5
5
2.2.3 Are All Chats Suitable for Learning Purposes
6
2.2.4 Doctor-Patient Real Time Chat Application
6
2.2.5 An Online Chat Application For Android
Smartphone
3
SYSTEM REQUIREMENT SPECIFICATION
7
3.1 INTRODUCTION
7
3.2 HARDWARE REQUIREMENT
7
3.3 SOFTWARE DESCRIPTION
7
3.4 SOFTWARE SPECIFICATION
7
3.4.1 ANDROID STUDIO BUMBLEBEE
7
3.4.2 JAVA
8
3.4.3 GRADLE
9
3.4.4 GOOGLE FIREBASE
9
3.4.5 THE BUILD PROCESS FOR AN ANDROID
10
APPLICATION PACKAGE
4
PROJECT DESCRIPTION
ii
11
5
4.1 EXISTING SYSTEM
11
4.2 PROPOSED SYSTEM
11
4.3 LIST OF MODULES
12
4.3.1 SPLASH SCREEN
12
4.3.2 LOGIN SCREEN
12
4.3.3REGISTER SCREEN
13
4.3.4 CHAT SCREEN
13
4.3.5 CHAT ACTIVITY
13
4.3.6 GROUP FRAGMENT
14
4.3.7 LOGOUT
14
4.3.8 SETTINGS
14
4.3.9 PROFILE
14
RESULT AND DISCUSSION
15
5.1 SPLASH SCREEN
15
5.2 LOGIN SCREEN
15
5.3 REGISTER SCREEN
16
5.4 HOBBY SCREEN
16
5.5 USERS SCREEN
17
5.6 CHAT SCREEN
18
5.7 PROFILE SCREEN
18
5.8 SETTING SCREEN
19
REFERENCES
20
iii
TABLE OF FIGURES
FIGURE NO
FIGURE NAME
PAGE NO
3.1
Gradle Process
7
3.2
Firabase Process
9
3.3
Build Apk process
10
4.1
Flow Diagram
10
5.1
Splash Screen
15
5.2
Login Screen
16
5.3
Register Screen
16
5.4
Hobby Screen
17
5.6
User’s Screen
17
5.7
Chat Screen
18
5.8
Profile Screen
19
5.9
Setting Screen
19
iv
CHAPTER 1
INTRODUCTION
Various messaging apps like WhatsApp and Facebook will provide a way to chat
with known people. They provide a simple way to connect with people who are already
in our contact list. The main objective of this application is to introduce a methodology
to provide messaging services over the internet that allows Android-based smartphone
users to chat with any person in the world about their hobbies. This application is to
chat with strangers to share and discuss our ideas and thoughts with them and Google
Firebase as a real-time backend database which provides real-time data connectivity
using peer-to-peer connection.
1.1 ANDROID OPERATING SYSTEM
The mobile application industry is advancing rapidly with the advent of
new mobile technologies. Consisting of several operating systems like Symbian
OS, iOS, BlackBerry, etc., Android OS is recognised as the most widely used,
popular, and user-friendly mobile platform. This open-source Linux kernelbased operating system offers high flexibility due to its customization
properties, making it a dominant mobile operating system. Android applications
are programmed in Java. The Google Android SDK delivers a special software
stack that provides developers with an easy platform to develop Android
applications. Moreover, developers can make use of existing Java IDEs, which
provides flexibility to the developers. Third-party application development
relies heavily on Java libraries. With the help of these approaches, an
application can be deployed to several platforms without the need for changes
in coding. However, Android is more prone to security issues. Any Android
developer can upload their application on the Play Store, which can cause a
security threat to any Android device.
1.1 ANDROID APPLICATION DEVELOPED USING JAVA
1
Java is the technology of choice for building applications using managed code that
can be executed on mobile devices. Android is an open-source software platform and
a Linux-based operating system for mobile devices. The Android platform allows
developers to write managed code using Java to manage and control the Android
device. Android applications can be developed using the Java programming language
and the Android SDK. So, familiarity with the basics of the Java programming
language is a prerequisite for programming on the Android platform.
1.2 OBJECTIVE OF THE PROJECT
Developing an interactive user-friendly software for efficient communication
within members of likeminded society based on their hobbies. This android application
software developed using java and firebase will provide a common platform for
efficient information exchange among people with similar interests to explore more
perspectives.
1.3 METHODOLOGY
The application will take the new users to the registration page and get the required
information from them. After a successful registration, the user will need to sign in to
use the application. The passwords are encrypted and stored in the Firebase, and for
every user it will create a unique id to identify the user. Then, after successfully logging
in, the user will be redirected to the main page of the application where they can see
the floating icons. The floating icons will have a set of hobbies. The user can choose
any one of the hobbies from the list. Then the other users who have the same hobby
will be shown to users. Then the user can start chatting with each other. One of the
primary benefits is that the user's contact information is not displayed to others.
2
CHAPTER 2
LITERATURE SURVEY
2.1 INTRODUCTION
The innovative ideas and concepts which helped for the proposal of this system
were taken from the following references. This has helped in gaining information
regarding the works and procedures of the existing systems. Encapsulating the
advantages and disadvantages of various existing systems henceforth helped in
modifying the project.
2.2 LITERATURE REVIEW
2.2.1 Android Based Instant Messaging Application Using Firebase
The main objective is to present a software application for the launching of a
real time communication between operators/users. The system developed on android
will enable the users to communicate with another users through text messages with
the help of internet. The system requires the device to be connected via internet. This
application is based on Android with the backend provided by google Firebase.
2.2.2 Android Chat Application
The main objective of this application is to present a software for the launching
of a real time communication between operators/users. The system developed on
android will enable the users to communicate with another users through text
messages with the help of internet. The system requires the device to be connected
via internet. This application is based on Android with the backend provided by
google Firebase for Authentication and PHP server for overall Application.
2.2.3 Are All Chats Suitable For Learning Purposes
The Chat is being used for more than one decade in learning environments as a
useful Computer Supported Collaborative Learning (CSCL)Tool . However,
3
nowadays some students still usually face accessibility barriers when using Chats
and, as a result, they cannot learn in the same way as their classmates. Thus, some of
the equality principles of education are not accomplished. This paper shows a study
of chat’s characteristics and analyses if commercial Chats with general purposes can
be used for learning environments in an accessible way. This study has been carried
out from the point of view of the Universal Design for Learning (UDL) guidelines.
2.2.4 Doctor-Patient Real Time Chat Application
During the pandemic, most of the working population spent most of their time
doing sedentary desk jobs. As a result, they may have developed inadequate spine
posture, which can cause profound implications such as back pain if not corrected at
an early stage. Implementation of machine learning and computer vision has allowed
us to capture and analyze video input from the user’s cellphone to remind them
whenever they are not in the correct position. To further support users, a chat feature
has been implemented through which the users can quickly get in touch with
orthopedic experts for evaluation and feedback.
2.2.5 An Online Chat Application For Android Smartphone
This Application is suitable to apply on lightweight application, so it is suitable
to implement on an android chat application. The chat application has been
successfully implemented and tested using Android Studio in the JAVA
programming language. The database that used in the chat application is the Firebase
NoSQL database
4
CHAPTER 3
SYSTEM REQUIREMENT SPECIFICATION
3.1 INTRODUCTION
A clear view of the hardware and software requirements of the project is crucial
to understand its working. This chapter takes a deep analysis of the various hardware
and software requirement for the proposed system.
3.2 HARDWARE REQUIREMENT
The Minimum Hardware requirements for this project are,
• Android Device (Android OS 10 and Above)
• Read Only Memory (ROM) 2000MB
• Random Access Memory (RAM) 8GB
3.3 SOFTWARE DESCRIPTION
A software requirements specification is a description of a software system to
be developed. It lays out functional and non-functional requirements and may include
a set of use cases that describe user interactions that the software must provide. The
software requirements are description of features and functionalities of the target
system.
3.4 SOFTWARE SPECIFICATION
1. Android Studio Bumblebee (2021.1.1)
2. Java
3. Google Firebase
3.4.1 Android Studio Bumblebee
The Android Studio team has been released Android Studio Bumblebee
(2021.1.1) and Android Gradle plugin (AGP) 7.1.0; the latest versions of Android
official Integrated Development Environment (IDE) and build system. This improved
5
functionality across a broad area of the typical developer workflow: Build and
Deploy, Profiling and Inspection, and Design.
Some notable additions include a unified test execution between Android Studio
and user’s continuous integration (CI) server.
3.4.2 Java
The aim of creating Android's development was to create a platformindependent application environment that can run on every device. As we know, Java
already has this quality, so Java was chosen for Android development. Android
applications run on a special virtual machine called the Dalvik VM, which is based
on the Java virtual machine known as the JVM. application can run on any device
where a special Dalvik VM is implemented. This way, Android applications are
compiled and run in an optimum performance environment with the feature of
platform independence. The good approach to software development is the objectoriented approach. Java is based on the oops concept. Android relies heavily on Java
fundamentals like classes and objects and its other useful features like oops.Java has
an extensive set of libraries. It is easy to take advantage of these libraries. The Android
SDK has many standard Java libraries included.
3.4.3 Gradle
Gradle is a flexible build automation tool that runs on the Java virtual machine
(JVM) and requires a Java development kit. Developers can use Java APIs in their
build logic, like plugins and custom task types, and can use the tool on various
platforms. Gradle allows the use of a build cache to reuse task outputs from previous
runs as well as other optimizations. It has high performance. It can be used in most
major IDEs like Android Studio and IntelliJ IDEA, which could import Gradle builds
and interact with them.
6
Fig 3.1 Gradle Process
3.4.4 Google Firebase
Google Firebase is a Google-backed app development platform that allows
developers to create apps for iOS, Android, and the web. Firebase delivers analytics
tracking, reporting, and app issue fixes, as well as marketing and product
experimentation capabilities.
Firebase is a Google Cloud Platform-based Backend-as-a-Service BaaS that
began as a next-generation app development platform.
The Firebase Realtime Database is a NoSQL database hosted in the cloud that
allows users to store and sync data in real time.
It's simple to put up, quick, and just requires front-end logic in many
circumstances. It allows users to focus on the app rather than on bespoke
authentication, web sockets, or database connections.
7
Fig 3.2 Firebase Process
A firebase process flow between the multiplatform and server side is depicted in
Fig 3.3.
3.4.5 The Build Process for an Android Application Package
The Android build system compiles app resources and source code and packages
them into Android App Bundles, that are built, tested, deployable, and distributed.
Android Studio uses Gradle, an advanced build toolkit, to automate and manage the build
process which allows to define flexible custom build configurations. Each build
configuration can define its own set of code and resources while reusing the parts
common to all versions of the app. The Android plugin for Gradle works with the build
toolkit to provide processes and configurable settings that are specific to building and
testing Android applications.
8
Fig 3.2 Build Apk Process
9
CHAPTER 4
PROJECT DESCRIPTION
4.1 EXISTING SYSTEM
WhatsApp: WhatsApp started as an alternative to SMS. It supports sending and
receiving a variety of media: text, photos, videos, documents, and location, as well as
voice calls.
Hike Messenger: Hike Messenger is India's first home-grown messaging platform
and is simplifying the way people connect and interact with each other on messaging
platforms.
Facebook: The most important advantage of a Facebook app is that it helps a
business get brand recognition. It makes it possible to spread a business name to a wide
audience and expand the reach of a business. There are a million Facebook users.
Instagram: People use Instagram to share photos and videos with people in their
online network. They also socialize by chatting in DMs in small groups.
LinkedIn: People can build connections in your industry and stay in touch with
colleagues, past and present. It's an invaluable tool for job searches and recruitment,
and a great way to stay up to date with industry news, enhance your professional
reputation, and increase the visibility of your brand.
4.2 PROPOSED SYSTEM
All the chats will be stored at the Firebase. Users will be able to simultaneously
switch their hobbies. The application provides functionality to chat with the Internet.
So, if the user is far away, they can do chatting with internet connectivity. The user can
delete the sent message at any time. The user can react to the messages they sent and
received. There is a global chat feature that enables them to chat together and connect
with each other.
10
Fig 4.1 Flow Diagram
4.3 LIST OF MODULES
4.3.1 Splash Screen
This module represents the splash screen. A splash screen can appear while a
app is launching. Splash screen contains our application logo and loading screen for 5
seconds. After 5 seconds, then it displays a login page.
4.3.2 Login Screen
This module represents the login screen. The login page allows a user to gain
access to an application by entering their username password and role such as data
11
owner, data user, trusted authority for the user to navigate the application. Quite often
a logon necessitates that the user has a username, a password, and their role.
Often, the username must conform to a limited length such as eight characters and the
password must contain at least one digit and not match a natural language word. The
username is freely known and is obvious when entered at a console or other information
gadget. The password should be kept secret (and is not shown as it is entered).
A user navigates to an application and is given a login page as an approach to
access the application. The two anticipated results are:
• Authentication is successful and the user is directed to the landing page.
• Authentication fails and the user remains on the login page. If authentication
fails, the screen shows an informational or error message about the failure.
The error message occurs due to invalid password or username or the role. In
case it might be the deregister account for the logging of the page. A user is
automatically logged out due to inactivity/network issues. In this event, they will be
returned to the login page, which will display an informational message explaining
what happened. Once the user logs in again, they will be taken back to the page they
were previously on before being out.
The Data Owner, Data User, and Trusted Authority log in to the page by
providing the correct username, password, and role. If any of these are incorrect, an
error message will appear on the login page, prompting the user to provide the correct
username, password, and role.
4.3.3 Register Screen
This module represents the register page. A registration form is a list of fields
that a user will input data into and submit to a company or individual. There are many
reasons why user would want a person to fill out a registration form. In this software
we use registration forms to sign up clients for sharing and viewing their shared file
with high security and for other programs or plans.
12
Here we prescribe the details from the users such as username, password, name,
roll number, email for the registration purpose. The username, password, name all
these are common for the registration purpose and other fields are used for access
control such as roll number, email.
4.3.4 Chat Screen:
All the chats of the user will be shown in Chats Fragment which will be automatically
retrieved in regular intervals. Contacts present within the android device which have
registered with the application are synced and displayed
4.3.5 Chat Activity:
All the messages with the specific user are shown in Chat activity. User can
delete the sent message at any time.
4.3.6 Groups Fragment:
Groups can also be viewed separately. So, the user can manage & see all the
groups together.
4.3.7 Log out:
Logging out helps prevent other users from accessing the system without
verifying their credentials. It also helps protect the current user's access or prevent
unauthorized actions on the current login session and is thus an important part of
security. Logging out ensures that user access and user credentials are safe after the
login session.
4.3.8 Settings:
Setting allows the user to reset the password and to changes their username.
13
4.3.9 Profile:
User profile. A directory of stored user settings, information, and other information of
the user account.
14
CHAPTER 5
RESULT AND DISCUSSION
The application has been completed and is now running on the Android Device.
This chapter provides a comprehensive overview of numerous results and output
screens, as well as a complete explanation of the project with screenshots.
5.1 SPLASH SCREEN
This screen contains application logo and loading screen for 2 seconds. After 2
seconds, then it displays a login page.
Fig 5.1 Splash Screen
Fig 5.1 represents the splash screen. A splash screen can appear while a game or
program is launching.
5.2 LOGIN SCREEN
Fig 5.2 represents the login screen. This is the login page of this application. The
login page allows a user to an application by entering their username password .
15
Fig 5.2 Login Screen
5.3 RIGISTER SCREEN:
Fig 5.3 represents the register page. This module represents the register page. A
registration form is a list of fields that a user will input data into and submit to
application.
Fig 5.3 Register Screen
5.4 HOBBY SCREEN
16
This Screen represents the static hobby list. In this screen, the use can choose
any one hobby from the list provided. This is shown in Fig 5.4
Fig 5.4 Hobby Screen
5.5 USERS SCREEN
Fig 5.5 shows the users available when the user has choose the same hobby
simultaneously.
17
Fig 5.5 user’s screen
5.6 CHAT SCREEN
Fig. 5.6 display how the chatting adapter will look like,
Fig. 5.6 Chat Screen
5.7 PROFILE SCREEN
Profile Screen has some components like Username, Interest, Profile picture.
Those elements are shown in Fig 5.7
18
Fig 5.7 Profile Screen
5.8 SETTING SCREEN
Setting activity has some basic feature like profile activity, reset password,
about Screen, and logout activity. Fig. 5.8
Fig 5.8 Setting Screen
19
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