Architecture,applications all related to android

1. 1

2. What is Android OS?
 Android is a software platform
and operating system for
moblie devices.
 It is based on the Linux Kernel.
 Developed by and later
Open Handset Alliance.

3. OHA (Open Handset Alliance)
 It’s a Consortium of several companies.
 Here five different type of companies have agreed to work
together and reap the benefits of the operating
systems.(orginally initiated by Google)
3

4. Companies Involved in OHA
(Open Handset Alliance)
4

5. Smart-Phones
HTC G1,Droid,Tattoo Motorola Droid (X)
Motorola Admiral Samsung Galaxy Sony Ericsson
Xperia 5

6. Tablets
Velocity Gome Acer beTouch
Micro Cruz FlyTouch
Panasonic Cisco Android
Dawa D7 Viera Tablet 6

7. ANDROID Characteristics…
 Android Basic Features:
 Bluetooth, EDGE, 3G and WIFI.
 Emulator.
 Camera, GPS, compass and accelerometer.
 2D and 3D graphics.
 Language for Programming:
 Java.
 Virtual Machine:
 Dalvik (Kernel GNU/Linux).
7

8. 8

9. 9

10.  Developed By Apple Inc. in  Developed by Google in the
the year 2007 during the launch year 2009.
of Apple I-phone.
 No availability of Widgets.  Provides Widgets for Free.
 No support for Flash Player.  Provides Flash Player
through a Third Party
application.
 No provision for removable  Provision for removable
Storage. Storage.
 No Facebook and Twitter  Facebook and Twitter
Integration. Integration.
 Applications and Updates  Applications and Updates
are expensive. are cheap and sometimes free.
10

11. 11

12. Applications
 The Applications directory of Android OS holds the following basic
applications with additionals apps. supported:
 Email support
 SMS service
 Calendar
 Inbuild Browser
 List of Contact
 This Directory is programmed in Java.
12

13. Application Framework
 API(Application Program Interface).
 Activity Manager – Manages Application life
cycle
13

14. Libraries
 C/C++ Libraries.
 Interface through JAVA.
 Surface Manager - Handling UI window.
 2D and 3D graphics.
 Media codecs, Sqlite, Browser Engine.
14

15. Android Runtime
 Dalvik VM
 Dex Files
 Core Libraries
 Compact and efficient than class files
 Limited Memory and battery power
 Java 5 std edition
15

16. Linux Kernel
 Works as a HAL
 Device Drivers.
 Memory management.
 Process Management.
 Also provides networking.
16

17. Application Life Cycle of
Android Applications
17

18. 18

19. Application Life Cycle.
 Applications run in their own Process.
 Processes are start and stopped needed to
run an application’s components.
 Processes may be killed to reclaim resources.
19

20. Snapshots of Applications in
Android(Views)
 Form Stuff, Spinner, Auto Complete
20

21. Snapshots of Applications in
Android(Views)
 Date Picker, Time Picker
21

22. Snapshots of Applications in
Android(Views)
 Map View or Web View
22

23. Applications related to Office
Use
 Provision for ColorNote and Screen-Touch UI
interface.
23

24. Notifications.
 Android Provides Status Bar and Dialog
Notifications
24

25. Widgets
25

26. Android Virtual Device (AVD)
26

27. Screen Shot of a project in
Android
27

28. Screen Shot of a project in
Android(2)
28

29. Coding of Applications
29

30. Vendors of ANDROID Applications?
 Distribution of applications
 Publication of applications
30

31. Good Day Folks !!!
Any Queries???
31