(1) The document discusses designing and implementing two mobile applications: one using shared preferences to change the theme of the app between light and dark mode, and one using SQLite to perform CRUD operations on a faculty information database. (2) For the shared preferences app, the design involves buttons to switch between themes, saving the selected theme in shared preferences so it persists after closing the app. (3) For the SQLite app, the design involves activities and layouts for home, adding, editing, and displaying faculty records from a database using a DBHelper class to perform CRUD operations on the table.

1. Mobile Application Development
T. S. Indi, IT Department, WIT Solapur Page 1
Handout#9
Problem Statement:
(A) Design and implement an application using “Shared Preferences”
concept to change theme of your application.
(B) Design and implement an application using SQLite to insert, delete,
update and display Faculty information into database.
Design:
(A) Using Shared Preferences Concept:
Steps:
(A) Using Shared Preferences
1) Design layout with two buttons “Dark” and “Light”
2) Default theme of app should be black background color.
3) On click of “Light” button background color should change to white
color.
4) On Click of “Dark” button background color should change to black
color.
5) This theme of app should be saved as “SharedPreferences” data.

2. Mobile Application Development
T. S. Indi, IT Department, WIT Solapur Page 2
(B) Using SQLite Concept:

3. Mobile Application Development
T. S. Indi, IT Department, WIT Solapur Page 3
Steps:
(B) Faculty Information app using SQLite
1) Design different layouts for app home, add new record, display all
record, to edit existing record and to exit from app as shown in design.
2) Each layout will be associated with different Activity class such as
MainActivity, DisplayActivity, EditActivity and SaveActivity.
3) Design DBHelper class which extends SQLiteOpenHelper to perform
database operations such as table creation and updation.
4) Main layout is to navigate to different operations such as Add, Edit and
Display
5) Add layout is to insert new record of Faculty information.
6) Edit layout is to edit existing record of Faculty information.
7) Display layout is to display all records of Faculty information.
[Reference: Book -“Mobile Apps Development” by Anubhav Pradhan, Anil V Deshpande]