The document presents information on Android architecture. It discusses that Android is a mobile operating system based on the Linux kernel that is developed using Java and C/C++ programming languages. It then describes some key components of the Android architecture, including the Linux kernel, Dalvik virtual machine, activities manager, package manager, content providers, and views system. It also mentions using Eclipse IDE, Android SDK, and emulators for application development.

1. Presented by:-Amar Shah
Roll no:-130973107008

2. Android
 Android is a mobile operating
system (OS)
 Based on the Linux kernel.
 Develop In JAVA & C/C++ Programming
Language

3. History
 All Of You Know The History Of Android.
Let’s Start With TECHNOLOGY Behind
Android

4. Content :
Session Divided into Two part :
 Android Architecture
 Practical Application

5. Architecture Java C/C++

6. Architecture
 Relies on Linux version 2.6Kernel
 kernel as the hardware abstraction layer
 drivers in place
 provides memory management, process
management, a security model networking, a
lot of core OS infrastructure, etc.

7. Architecture
 Surface Manager – is responsible for composing
different drawing surfaces on to the screen.
 OpenGL ES and SGL. These two make up the
core of our graphics libraries
 OpenGL ES is a 3D library and we have a
software implementation that is hardware
acceleratable if the device has 3D chip on it.

8. Architecture
 SGL graphics are for 2D graphics and that is
what, most of our application drawing is based
upon.
 Media Framework which was provided by
packet video, one of the members of the Open
Handset Alliance and that contains almost all of
the codecs to make up the core of the overall
media experience.

9.  Free Type to render fonts.
Architecture
 SQLite use as the core of most of the data
storage.
Web Kit as the open source browser engine. It’s
the same browser that is powering Google’s
chrome and apple’s Safari.

10.  Android Runtime :
Architecture
 Main component is the Dalvik VM.
 Designed specifically for the android to meet the
needs for running is an embedded environment,
where you have limited battery, limited memory,
limited CPU.
 Dalvik VM runs dex files, .dex and these are byte
codes running on small processors

11.  Dalvik Virtual Machine (Cont)
 Executing the Dalvik Executable (.dex)
format
 .dex format is optimized for minimal
memory footprint.
Compilation
 Relying on the Linux Kernel for:
 Threading
Low-level memory management

12. Architecture
 An Activity Manager that manages the life cycle
of applications. It also provides a common
navigation backstack so that applications running
in different processes can have a smoothly
integrated navigation experience.
 Package Manager is what keeps track of which
applications are installed on your device.
 Window Manager manages windows.

13. Architecture
 Telephony Manager contains the APIs that we use
to build the phone application that’s central to the
phone experience.
 Content Providers the frame work that enable
applications to access data from other applications, or
to share their own data like name, phone number,
address, email etc. on other applications
 Resource Manager is what we use to store localized
strings, bitmaps, and layout file, all of the external
parts of an application that aren’t coded.

14. Architecture
 View system contains, buttons and lists. It also
handles things like event dispatching, layout,
drawing.
 Location manager, Notification manager and
XMPP services are some API’s that will allow
develop new applications.
 A Notification Manager that enables all
applications to display custom alerts in the status
bar

15. Architecture
 All are aware of this Layer.

16. Let's Start
Application
Development

17. Android Application Development
Eclipse IDE
Android
SDK
Android
Emulator
Android
Mobile
Device

19. 3D Technology

20. ANY
QUERIES…