2. It’s Me
I am Saurabh Kukreja, Working as Mobile
Application Consultant from more than 3 years
I am also working as a co-founder of a startup
named as 4Edges, which is a service oriented
company, delivery various Software solutions
to our clients
Evolution Of Mobile Phones
History Of Android
Architecture of android
5. A robot with a human appearance
An open-source operating system used for
smartphones and tablets.
Android Inc. was founded by:
They thought of Developing an advanced OS for camera
but later switched to Mobile Operating Systems
Google acquired Android Inc. in August 2005.
OHA- Open Handset Alliance
The first commercially available smartphone
running Android was the HTC Dream released on
October 22, 2008.
7. Android Architecture
Android is a mobile operating system (OS) based
on the Linux kernel and currently developed
Applications are developed
for low powered hand-held
devices, such as Phone,
Android is a complete stack
9. Linux Kernel provides a level of abstraction
between the device hardware and the upper layers
of the Android software stack
Linux version 2.6.x for core system services like
memory management, process management,
security model, networking and lot of core OS
11. All These libraries are written in C/C++
Libc: c standard library
SSL: Secure Socket Layer
Surface Manager: Responsible for composing different drawing surfaces
Open GL and SGL are graphic Libraries
OpenGL|ES : 3D Image Engine
SGL : 2D image Engine.
Hence we can combine 3D and 2D graphics in the same application.
Media Framework : Core part of the android multimedia.
FreeType: To render the fonts.
WebKit:Open source browser engine. Helps to work well on small screen.
SQLite: Embedded Database
13. Android Runtime
Android runtime meet the needs of Android
running in an embedded environment
,i.e., where is limited battery, limited Memory and limited CPU.
Android Runtime consists of Dalvik Virtual machine and Core Java
Java Programming Language contains all the collection classes, utilities,
IO..all these utilities which you come across and expected to use.
DALVIK VIRTUAL MACHINE
application code must be transformed from standard Java class files to the Dalvik
executable (.dex) format, which has a 50% smaller memory footprint than
standard Java bytecode
Each Android application simply runs as a process directly on the Linux kernel,
each application running on an Android device does so within its own instance of
the Dalvik virtual machine (VM).
applications are essentially sandboxed
enforced level of abstraction makes applications platform neutral in that they are
never tied to any specific hardware.
15. Application Framework
Our applications directly interact with these blocks of the
Android architecture. These programs manage the basic
functions of phone like resource management, voice call
Important blocks of Application Framework:
Activity Manager: Manages the activity life cycle of
Content Providers: Manage the data sharing between
Telephony Manager: Manages all voice calls. We use
telephony manager if we want to access voice calls in our
Location Manager: Location management, using GPS or
17. Application Component
They dictate the UI and handle the user interaction to
the smartphone screen
They handle background processing associated with
Intent Receivers/Broadcast Receivers
Respond to notification or status changes. Can wake
up your process
They handle data and database management issues.
Android OS basic screen provides a beautiful and
intuitive user interface.
GSM/EDGE, Bluetooth, Wi-Fi, NFC.
A lightweight relational database, is used for data
MPEG-4, MP3, MIDI, WAV, JPEG, PNG, GIF, and
SMS and MMS
19. Web browser
Based on the open-source WebKit layout engine, coupled with Chrome's
Android has native support for multi-touch which was initially made
available in handsets such as the HTC Hero.
User can jump from one task to another and same time various
application can run simultaneously.
Widgets are resizable, so users can expand them to show more content
or shrink them to save space
Google Cloud Messaging (GCM) is a service that lets developers send
short message data to their users on Android devices, without needing a
proprietary sync solution.
21. Evolving Trends
Android Wear extends the Android platform to a
new generation of devices
Small, powerful devices, worn on the body.
Useful information when you need it most.
Intelligent answers to spoken questions. Tools to
help reach fitness goals.
22. Android TV
Bring your apps, games, and content to the
biggest screen in the house.
Running the Android 5.0 ("Lollipop") operating
Users will have access to theGoogle Play Store to
download Android apps
23. Android Auto
To be operated in automobiles through
the dashboard's head unit.
The standard will offer drivers control over