This document provides an overview of Android including: - A brief history of Android and its development by Google and the Open Handset Alliance. - Explanations of core Android concepts like the application lifecycle, intents, services, and data storage options. - Descriptions of key Android architecture layers and UI components. - An overview of different Android versions and their API levels from 1.0 to 7.0 Nougat.

1. Android
Industrial Training
Report
BY:-
Shashendra Singh
(7379254841)
B.Tech:-IIT Delhi

2. Contents
 Introduction
 History and Versions
 First Android Application
 Android Architecture
 Android Life Cycle
 User Interface Components
 Android Core Components
 Android Data Storage
 conclusion

3. What is Android
 It is a open source software platform and operating
system for mobile devices.
 It is based on the Linux kernel.
 Developed by Google Andy Rubin (Father of Android)
and later the Open Handset Alliance (OHA).
 Android Allows writing managed code in the Java
language.
 Android has its own Virtual Machine i.e. DVM
DVM(Dalvik Virtual Machine),which is used for
executing the android application.
 Google purchased the initial Developer of the
Software, android incorporated in 2005.

4. 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.

5. Open Handset Alliance(OHA)
included Several Companies


6. ANDROIDVERSION

7. ANDROID VERSION
 Version Nickname API level
 Android -1.0 - (API level 1)
 Android -1.1 - (API level 2)
 Android -1.5 Cupcake (API level 3)
 Android -1.6 Donut (API level 4)
 Android - 2.0 Éclair (API level 5)
 Android - 2.0.1 Éclair (API level 6)
 Android - 2.1 Éclair (API level 7)
 Android - 2.2–2.2.3 Froyo (API level 8)
 Android -2.3–2.3.2 Gingerbread (API level 9)
 Android - 2.3.3–2.3.7 Gingerbread (API level 10)
 Android - 3.0 Honeycomb (API level 11)
 Android -3.1 Honeycomb (API level 12)
 Android - 3.2 Honeycomb (API level 13)
 Android -4.0–4.0.2 Ice Cream Sandwich (API level 14)
 Android - 4.0.3–4.0.4 Ice Cream Sandwich (API level 15)
 Android - 4.1 Jelly Bean (API level 16)
 Android -4.2 Jelly Bean (API level 17)
 Android -4.3 Jelly Bean (API level 18)
 Android - 4.4 Kit-Kat (API level 19)
 Android-4.4W Kit-Kat with wearable extension (API level 20)
 Android -5.0 .1 Lollipop (API level 21)
 Android -5.1.1 Lollipop (API level 22)
 Android -6.0 Marshmallow (API level 23)
 Android-7.0 Nougat (API level24)

8. ANDROID ARCHITECTURE
The software stack is split into Four Layers::
• The application layer
• The application framework
• The libraries and runtime
• The kernel

10. Activity

11. Activity Life Cycle :
 public class Activity extends ApplicationContext {
 protected void onCreate(Bundle savedInstanceState);
 protected void onStart();
 protected void onRestart();
 protected void onResume();
 protected void onPause();
 protected void onStop();
 protected void onDestroy();
 }

12. Intents:
 An intent is an abstract description of an
operation to be performed. It can be used with
startActivity to launch an Activity,
broadcastIntent to send it to any interested
BroadcastReceiver components, and
startService(Intent) or bindService(Intent,
ServiceConnection, int) to communicate with
a background Service.

13. Intent Actions
 ACTION_VIEW
 ACTION_EDIT
 ANDROID_INSERT
 ANDROID_LAUNHER
 ACTION_DIAL
 ACTION_CALL
 ACTION_SEND

14. Intent in AndroidManifest :
<intent-filter>
<action
android:name="android.intent.action.GET_CONTENT" />
<category
android:name="android.intent.category.DEFAULT" />
<data
android:mimeType="vnd.android.cursor.item/vnd.google.note"
/>
</intent-filter>

15. Services

16. BroadCast Receiver
 A broadcast receiver is a component that responds
to system-wide broadcast announcements. Many
broadcasts originate from the system—for example,
a broadcast announcing that the screen has turned
off, the battery is low, or a picture was captured.
 Apps can also initiate broadcasts—for example, to let
other apps know that some data has been
downloaded to the device and is available for them to
use.

18. Data Storage in Android
 Android provides several options for us to save
persistent application data. The option we choose
depends on our application specific needs, there
are some types of DB in Android.Such Are:-
 Shared Preferences
 Internal Storage
 External Storage
 SQLite Databases

19. SQlite DataBase

22. Prepared By:-
Shashendra Singh
B.Tech (CSE)