The chat application is used most influential visual philosophies in design. It’s shaping the way people see and interact with interfaces because of clear design and usability guidelines. The complete Firebase Chat Android App source code is built in Android Studio IDE... https://abhiandroid.com/sourcecode/chat

2. What is chat?
● Online chat may refer to any kind of
communication over the Internet that offers a
real-time transmission of text messages from
sender to receiver.
● Online chat may address point-to-point
communications as well as multicast
communications from one sender to many
receivers and voice and video chat, or may be a
feature of a web conferencing service.

3. What is chat application?
● Online chat in a less stringent definition may be
primarily any direct text-based or video-based
(webcams), one-on-one chat or one-to-many
group chat (formerly also known as
synchronous conferencing), using tools such
as instant messengers, Internet Relay Chat
(IRC), talkers and possibly MUDs.

4. Chat Apps
● Messaging apps are apps and
platforms that enable messaging, many
of which started around social
networking platforms.
● Some social networking services offer
messaging services as a component of
their overall platform, such as
Facebook's Facebook Messenger,
along with Instagram and Twitter direct
messaging functions.

5. What is Firebase in android ?
● Realtime Database. Firebase provides a realtime
database and backend as a service. The service
provides application developers an API that
allows application data to be synchronized across
clients and stored on Firebase cloud.
● Firebase Analytics is a cost-free app
measurement solution that provides insight into
app usage and user engagement.

6. Firebase Chat Android App
● Welcome sliders provide
you; brief introduction about
the chat application.

7. Phone Number Authentication
Chat application
provides Phone
number
authentication to
sign in a user by
sending an SMS
message to the
user’s phone.

8. Real Time Chatting

9. Permissions
Chat application can access
your device ID(s), phone
number, whether you’re on
the phone, and the number
connected by a call. Device
ID & call information may
include the ability to read
phone status and identity.

10. Firebase Chat Android Source Code
The chat application is used most influential visual
philosophies in design.
https://abhiandroid.com/sourcecode/chat