1. Introduction To Android Programming
Lecture - 1
Krishnaveni S,Assistant Professor,Department Of Software Engineering

2. Krishnaveni S,Assistant Professor,Department Of Software Engineering
Topics for Today
Introduction to Mobile Apps Developments
What is Android?
History of Android
Android Versions
Android Devices
Krishnaveni S,Assistant Professor,Department Of Software Engineering

3. Introduction to Mobile Apps Development?
Mobile Apps Developments is very good demand in Market.
Nowadays every domain clients whether its banking or Healthcare, Insurance
wants their application to be mobile enabled.
Mobile Apps Development is a process by which application software is developed for a Small Low power hand held devices such as Smart Phones, tablets, PDA etc.
How we can get this applications?
We can get the applications in three ways
By default some applications are pre installed in mobile
We can download the applications from Google play or iTunes
We develop our own Applications
Krishnaveni S,Assistant Professor,Department Of Software Engineering

4. Krishnaveni S,Assistant Professor,Department Of Software Engineering
What is Android?
Android is a mobile operating system that is based on a modified version of Linux.
It is a open source software platform and operating system for mobile devices
Developed by Google and later the Open Handset Alliance (OHA)
Allows writing managed code in the Java language
Android has its own virtual machine i.e. DVM(Dalvik Virtual Machine),
which is used for executing the android application. .
Krishnaveni S,Assistant Professor,Department Of Software Engineering

5. Krishnaveni S,Assistant Professor,Department Of Software Engineering
What is Android?
Android is a mobile operating system that is based on a modified version of Linux.
It was originally developed by a startup of the same name Android, Google
purchased the initial developer of the software , android incorporated in 2005.
It is a open source software platform and operating system for mobile devices
Developed by Google and later the Open Handset Alliance (OHA)
Allows writing managed code in the Java language
Android has its own virtual machine i.e. DVM(Dalvik Virtual Machine),
which is used for executing the android application. .
Krishnaveni S,Assistant Professor,Department Of Software Engineering

6. Krishnaveni S,Assistant Professor,Department Of Software Engineering
History of Android
INTRODUCTION TO ANDROID PROGRAMMING
Google purchased the initial developer of the software , android incorporated in
Google started the community is called OHA Open Hand set alliance in the year 2007
In First major version of android was released in the market.
It was originally developed by a startup of the same name Android Inc. founded in Palo Alto, California ,united states in October 2003 by Andy Rubin and his team
Krishnaveni S,Assistant Professor,Department Of Software Engineering

7. Krishnaveni S,Assistant Professor,Department Of Software Engineering
Open Handset Alliance
The open handset alliance(OHA) is a business alliance of firm to develop open standard for mobile devices.
Devoted to advancing open standards for mobile devices
Develop technologies that will significantly lower the cost of developing and distributing mobile devices and services.
Krishnaveni S,Assistant Professor,Department Of Software Engineering

8. Krishnaveni S,Assistant Professor,Department Of Software Engineering
Android Versions
INTRODUCTION TO ANDROID PROGRAMMING
Krishnaveni S,Assistant Professor,Department Of Software Engineering

9. Krishnaveni S,Assistant Professor,Department Of Software Engineering
Android Version
Code name
Version number
Initial release date
API level
N/A
1.0
September 23, 2008 1
1.1
February 9, 2009 2
Cupcake
1.5
April 27, 2009 3
Donut
1.6
September 15, 2009 4
Eclair
2.0–2.1
October 26, 2009
5–7
Froyo
2.2–2.2.3
May 20, 2010 8
Gingerbread
2.3–2.3.7
December 6, 2010
9–10
Honeycomb[a]
3.0–3.2.6
February 22, 2011
11–13
Ice Cream Sandwich
4.0–4.0.4
October 18, 2011
14–15
Jelly Bean
4.1–4.3.1
July 9, 2012
16–18
KitKat
4.4–4.4.4, 4.4W–4.4W.2
October 31, 2013
19–20
Lollipop
5.0–5.1.1
November 12, 2014
21–22
Marshmallow
6.0–6.0.1
October 5, 2015 23
Krishnaveni S,Assistant Professor,Department Of Software Engineering

10. Krishnaveni S,Assistant Professor,Department Of Software Engineering
Android Versions
Android 1.0 (Angel Cake) The first version of the open source software was released back in 2008
Android 1.1 (Battenberg)
In Feb 2009, version 1.1
Android 1.5 (Cupcake) Launched in April 2009
Android 1.6 (Donut)-released in sept 2009
Android 2.0 \ 2.1 (Éclair)-released in 26 October 2009
Android 2.2 (Froyo)
released in the summer of 2010
Android 2.3 (Gingerbread) Gingerbread landed by the end of 2010
Android 3.0 (Honeycomb)
 For the first time Google released a software that was totally focused on tablets. This version, released in 2011
Android 4.0 (Ice Cream Sandwich 4.0) released in Android 4.1 (jelly bean4.1)  released in 2013
Krishnaveni S,Assistant Professor,Department Of Software Engineering

11. Krishnaveni S,Assistant Professor,Department Of Software Engineering
Android Devices in the Market
Android devices come in all shapes and sizes. As of late November 2011, the Android OS powers the
following types of devices:
Smartphones
Tablets
E-reader devices
Netbooks
MP4 players
Internet TVs
Krishnaveni S,Assistant Professor,Department Of Software Engineering

12. Krishnaveni S,Assistant Professor,Department Of Software Engineering
Figure shows (left to right) the Samsung Galaxy S II, the Motorola Atrix 4G, and the HTC EVO 4G smartphones.
Krishnaveni S,Assistant Professor,Department Of Software Engineering

13. Krishnaveni S,Assistant Professor,Department Of Software Engineering
Another popular category of devices that manufacturers are rushing out is the tablet. Tablets typically come in two sizes: seven inches and ten inches, measured diagonally. Figure shows the Samsung Galaxy Tab 10.1 (left) and the Asus Eee Pad Transformer TF101 (right), both 10.1-inch tablets. Both the Samsung Galaxy 10.1 and the Asus Eee Pad Transfer TF101 run on Android 3.
Krishnaveni S,Assistant Professor,Department Of Software Engineering

14. Krishnaveni S,Assistant Professor,Department Of Software Engineering
Google has also ventured into a proprietary smart TV platform based on Android and co developed with companies such as Intel, Sony, and Logitech. Figure 1-6 shows Sony’s Google TV. the Samsung Galaxy Nexus (see Figure) is the only device running on Android 4.0. However, Google has promised that existing devices (such as the Nexus S) will be able to upgrade to Android 4.0. By the time you are reading this, there should be a plethora of devices running Android 4.0.
Krishnaveni S,Assistant Professor,Department Of Software Engineering

15. Krishnaveni S,Assistant Professor,Department Of Software Engineering
The Android Developer Community
Here are some developer communities/sites that you can turn to for help if you run into problems while working with Android:
Stack Overflow ( — Stack Overflow is a collaboratively edited question and answer site for developers
Google Android Training
Android Discuss (
Krishnaveni S,Assistant Professor,Department Of Software Engineering