The document provides an overview of the Android operating system, detailing its development by Google and the Open Handset Alliance, as well as the benefits of choosing Android for developers and users. It discusses various Android products, custom skins created by OEMs, and the significance of Google Mobile Services (GMS) for app functionality. Additionally, it outlines the app development workflow, different types of apps, and concludes with the advantages that have contributed to Android's dominance in the smartphone market.

1. Android

2. Android Operating System
 Linux-based OS developed by the Open Handset Alliance (OHA)
 Created by Android, Inc., which was bought by Google in 2005.
 Google teamed up with other companies to form the Open Handset Alliance
(OHA).

3. Reason to choose Android
 Enriching the Community of Android Developers.
 Developer-Friendly Tools and Integration Technologies.
 Futuristic Advancements.
 An Effective Marketplace.
 Great Return on Investment (ROI).

4. Android Version Market Share
Source: https://gs.statcounter.com

5. Android Products
Wear OS Chromebook Android TVGoogle Pixel Android Auto

6. Open Hand Alliance
 A business alliance that was created for the purpose of developing open mobile device
standards.
 The OHA has approximately 80 member companies, including HTC, Dell, Intel,
Motorola, Qualcomm and Google.
 The OHA's main product is the Android platform - the world's most popular smartphone
platform.
 Members share a commitment to expanding the commercial viability of open platform
development.

7.  Lower overall handset costs.
 Developer-friendly environment.
 Post-development.
Open Hand Alliance
OHA member companies back the open platform concept for a number of reasons,
as follows:

8. Why Do OEMs Create Custom Android Skins?
 Differentiation
 User retention
 Include additional services
 Push the envelope
 Skins should not be a dramatic topic

9. GMS Certification
 GMS stands for Google Mobile Services.
 Google applications which pack the very essence of Google itself in its
configuration – Google Search, YouTube, Gmail, Chrome etc,.
 Smooth functionality of Google Apps without any App crashes.
 The device must pass the test from the compatibility test suit (CTS).

10. Test procedures
Step 1: Compatibility Test Suite (CTS)
Step 2: CTS Verifier
Step 3: Google GMS Test Suite (GTS)
Step 4: Vendor Test Suit

11. Android Skins
 Stock Android / Pixel UI by Google
 Android One
 OxygenOS By OnePlus
 OneUI By Samsung
 EMUI By Huawei
 MIUI By Xiaomi
 ZenUI By Asus
 Sony Xperia UI by Sony
 ColorOS By OPPO

12. Android Apps
 Single installable unit which can be started and used independently.
 Designed for a smartphone or a tablet PC running on the Android OS.
 Android apps are uploaded and published on the Android Market which is Play Store.
 Android Market features both free and priced apps.
 Android apps are written in the Java programming language.

13. Android Programming Language
 Apps are developed using Java or Kotlin.
 IDEs for Android Development
-> Android Studio
-> Eclipse
-> IntelliJ IDEA
-> NetBeans
 SDKs enables developers to create applications for Android platform.

14. Other Frameworks
 React Native
 Flutter
 Ionic
 Xamarin
 Adobe PhoneGap
 Mobile Angular UI

15. Workflow of App development

16. Workflow of App development

17. Android Apps - Types
There are 3 types of apps:
1. Native Apps
 iOS on Objective-C or Swift
 Android on Java
 Windows Phone on Net
2. Hybrid Apps
3. Web Apps

18. Conclusion
Due to advantages of Android like:
Multitasking, Ease of notification, Access to millions of Apps, Widgets,
Access to install custom ROM and the biggest factor ̶ Google support, it
has attracted the users all over the globe and has changed the concept
“CellPhones” to “SmartPhones” and thus it has commercially acquired a
huge market which is still Expanding.

19. Thank You!!!