The document provides an overview of the key phases in the mobile application development lifecycle: 1. Planning and research to define the app concept and target audience. 2. Assessing technical feasibility to determine the appropriate platform and backend requirements. 3. Creating wireframes and prototypes to design the user interface and flows. 4. Designing the visual aspects and user experience of the application. 5. Developing the app by coding features, integrating the backend, and testing functionality. 6. Thoroughly testing the app and fixing any bugs before deployment. 7. Deploying the app to appropriate app stores or servers. 8. Launching the app and promoting

1. MOBILE APPLICATIONS

2. ANDROID VS IOS

3. ANDROID VS IOS
• Android Pros
• Dominant in global market
• More flexibility to customize app
• Diverse phone options
• Can side-load apps from outside the Play Store
• Android Cons
• Takes longer to develop
• Users are slower to adopt new operating systems
• Users are less likely to purchase apps
• More susceptible to malware

4. ANDROID VS IOS
• iOS Pros
• Faster, easier, cheaper to develop
• Apple users more likely to purchase apps
• Tight security
• Apple users more likely to update OS
• iOS Cons
• Less popular outside western Europe and North America
• Less flexibility to customize
• Apps take longer to be approved in App Store
• Fewer device options for users

5. ANDROID VS IOS
Which Platform to Build Your App on
Now that we’ve compared and contrasted Android vs iOS, it’s time to start
unpacking which platform is best suited for your app.
This process involves thinking critically about essential main concepts:
• Budget,
• Timeline,
• Target audience,

6. ANDROID VS IOS
Budget,
• Apple apps are written in Swift which requires less code than Android programming
languages
• iOS has fewer devices (remember the list from above?), components, and software
fragmentations to account for compared to Android

7. ANDROID VS IOS
Timeline,
• iOS app development is faster than Android app development — some estimates put
development time at 30–40% longer for Android. Target audience,

8. ANDROID VS IOS
Target audience,
• Android is dominant in global up-and-coming markets, including in Asia, Africa, and
Latin America
• Android users are more likely to work in technical jobs
• Slightly more men prefer Android than iOS

9. MOBILE APPLICATIONS
In our course we will go through the development of Android application

10. MOBILE APPLICATIONS
Android Develoopment

11. INTRODUCTION TO ANDROID

12. INTRODUCTION TO ANDROID
 Android :
 Started in 2003 as Android Inc. which was later acquired by Google in 2005
 The most popular mobile platform in the world
 Based of the Linux kernel
 Released by Google under an open source license
 Runs on a range of devices including smart phones, tablets, smart watches, cars, and
even smart television interfaces
 Supports ARMv7, ARMv8-A, x86, and MIPS chip architectures

13. ANDROID ECOSYSTEM AND
VERSIONS
 Over 18k distinct Android devices
 Screen resolutions varying from approximately 120 dpi or dots per inch to ~ 640 dpi
 Over 80% of Android devices are running Android Jelly Bean version (4.1.x) or above
 Over 40% of devices are Samsung devices (of devices surveyed)

14. ANDROID VERSION
HISTORY
Name
Internal
codename
Version
number(s)
Initial stable
release date
API level
Android 1.0 N/A 1.0
September 23,
2008
1
Android 1.1 Petit Four 1.1
February 9,
2009
2
Android
Cupcake
Cupcake 1.5 April 27, 2009 3
Android Donut Donut 1.6
September 15,
2009
4
Android Eclair Eclair
2.0
October 27,
2009
5
2.0.1
December 3,
2009
6
2.1
January 11, 2010
2010
7
Android Froyo Froyo 2.2 – 2.2.3 May 20, 2010 8
Android
Gingerbread
Gingerbread
2.3 – 2.3.2
December 6,
2010
9
2.3.3 – 2.3.7
February 9,
2011
10
Android
Honeycomb
Honeycomb
3.0
February 22,
2011
11
3.1 May 10, 2011 12
3.2 – 3.2.6 July 15, 2011 13

15. Name
Internal
codename
Version number(s)
Initial stable
release date
API level
Android Ice
Cream Sandwich
Ice Cream
Sandwich
4.0 – 4.0.2 October 18, 2011 14
4.0.3 – 4.0.4
December 16,
2011
15
Android Jelly Bean Jelly Bean
4.1 – 4.1.2 July 9, 2012 16
4.2 – 4.2.2
November 13,
2012
17
4.3 – 4.3.1 July 24, 2013 18
Android KitKat Key Lime Pie
4.4 – 4.4.4 October 31, 2013 19
4.4W – 4.4W.2 June 25, 2014 20
Android Lollipop
Lemon Meringue
Pie
5.0 – 5.0.2 November 4, 2014 21
5.1 – 5.1.1 March 2, 2015 22
Android
Marshmallow
Macadamia Nut
Cookie
6.0 – 6.0.1 October 2, 2015 23
Android Nougat
New York
Cheesecake
7.0 August 22, 2016 24
7.1 – 7.1.2 October 4, 2016 25
ANDROID
VERSION HISTORY

16. Name
Internal
codename
Version number(s)
Initial stable
release date
API level
Android Oreo Oatmeal Cookie
8.0 August 21, 2017 26
8.1 December 5, 2017 27
Android Pie
Pistachio Ice
Cream
9 August 6, 2018 28
Android 10 Quince Tart 10
September 3,
2019
29
Android 11 Red Velvet Cake 11
September 8,
2020
30
Android 12 Snow Cone 12 October 4, 2021 31
Android 12L Snow Cone v2 TBA Q1 2022 32
Android 13 Tiramisu 13 Q3 2022 33
ANDROID
VERSION HISTORY

17. MOBILE ANDROID
OPERATING SYSTEM
MARKET SHARE BY
VERSION WORLDWIDE
FROM JANUARY 2018 TO
DECEMBER 2021

18. NUMBER OF AVAILABLE
APPLICATIONS IN THE
GOOGLE PLAY STORE
FROM DECEMBER 2009
TO DECEMBER 2021

19. MOBILE SHARE BY BRAND

20. APP DEVELOPMENT IN ANDROID
 Design applications for a variety of devices
 Build anything from 3D games to social networks
 Use a diverse set of information in your apps including location, movement, touch
interactions, images, sounds, and much more
 Release an preview version of your application to a select group of users
 Deploy your applications to the Google play store and make it available to millions
of users
 Collect actual user data to upgrade and add new features to your application

21. ANDROID SDK
• SDK – Software Development Kit
• Provides tools to create, develop, debug, analyze and enhance Android applications
including:
 Android emulators
 Debugging tools
 Analyzing and Optimizing tools
 Documentation and Source Code
 Code Samples
 And More

22. ANDROID ACTIVITY LIFECYCLE
• Android Activity Lifecycle is controlled by 7 methods of android.app.Activity class.
• The android Activity is the subclass of ContextThemeWrapper class.
• An activity is the single screen in android. It is like window or frame of Java.
• By the help of activity, you can place all your UI components or widgets in a single
screen.
• The 7 lifecycle method of Activity describes how activity will behave at different
states.

23. ANDROID ACTIVITY LIFECYCLE
METHODS
Method Description
onCreate called when activity is first created.
onStart called when activity is becoming visible to the user.
onResume called when activity will start interacting with the user.
onPause called when activity is not visible to the user.
onStop called when activity is no longer visible to the user.
onRestart called after your activity is stopped, prior to start.
onDestroy called before the activity is destroyed.

24. ANDROID ACTIVITY LIFECYCLE
METHODS

25. IOS APP LIFECYCLE

26. PHASES OF MOBILE APP
DEVELOPMENT LIFECYCLE

27. Phases of Mobile App Development Lifecycle

28. 1. Planning & Research
The first phase of mobile app development involves research and planning. It is the
most important stage in the entire process of building an application because
whatever you will lay down will become the base of your development.
During this phase, it is crucial to do substantial research and brainstorming. While
doing so, you will need to answers to questions such as:
what is the aim of your app?
Who will be your target audience?
Which platform will suit your application development?
Will your app be a paid one or free?

29. 2. Assessment of Technical Feasibility
Analyzing visuals is not enough for app development. You need to determine whether
the backend systems will support the App’s functionality. It is significant to examine the
technical feasibility of the idea of your app development.
Additionally, you need to determine the platform of that you will use in the
development.
Application development has various requirements and they depend on the type of
platform you use; Android or iOS, or both.

30. 3. Wireframe & Prototype
When you come to this phase of mobile app development, you will have a pretty good idea
about how your application will look like and what features you want to integrate.
Now, it is the time to sketch out your application, which will give you a clear picture of its
navigation.
The sketching of the app is technically known as wireframing. You can create wireframes of
your application through online tools. Also, you should build a storyboard or a working
prototype, which will allow you to have clarity about the connections among different
screens of the end-user’s journey.

31. 4. Designing the Application
When you are done with defining the prototype of the app, it is the time to start with
the design and layout.
The wireframe will effectively help you in creating the design of the application. You
need to determine the UI/UX in the designing phase of app development.
While doing so, you need to consider a few things as below:
•Make sure you maintain a balance between the content and user interface
•Ensure to integrate the features while designing the app
•Maintain clarity and consistency in the flow
•Create an interactive UI

32. 5. Developing the Mobile App
App development involves a number of steps and processes.
It is important to set up the actual storage solutions, databases, APIs, and servers for the
backend of your app.
Additionally, it is vital to have your developer’s accounts for the app stores that you plan
to use to distribute your app. This step can take you several days to complete. Read the
app store guidelines thoroughly to avoid the rejection of your app during the review
process.
The development process also includes the integration of the defined features into your
application, backend technology selection; OpenSource, Java, .Net, etc..

33. 6. Testing the Mobile App
You finally have a complete app concept with exciting graphics and properly placed content.
Therefore, now, it is the time to test it for any technical flaws or bugs and correct them right
away.
You can go through your original planning and design documents and cross-check everything
with the app model to see if the requirements have met successfully. Testing an application
has become easier, thanks to the online mobile UX testing tools, which give you real-time
feedback and analytics. Make sure you test cross-platform compatibility of images, graphics,
and user experience.

34. 7. Deployment
When your application is tested for technical errors and flaws, then it is ready for
deployment. In the deployment process, you need to deploy the app on the server and
determine whether it meets the security standards defined for the data leakage. You need
to make sure that the data does not leak from the server. For this, it is crucial to ensure
that the database is secure by all means.

35. 8. App Launch
Once you are sure about every aspect of your application, then the launch time arrives.
You can launch your app in the App Stores. It is the final stage of mobile app
development.

36. 9. App Enhancement
Even when you have launched the latest version of your mobile application, you
are not done with the app development process yet. Yes, you read it right. The
application needs to have continuous updates and upgrades at regular intervals.
Also, you need to add new features with every update that will enhance the user
experience.
Regular updates will also help you keep your customers and users engaged with
your application.