BCA Mobile Programming

What is role of drawable folder in Android? Write down steps for deploying android application in emulator.

What are events in android? Explain the purpose of Views and View Group

Why RadioButton is usually used inside a RadioGroup? Create an android application to display selected RadioButton for gender (Male/Female/Others) using Toast message.

When fragment is used instead of activity in android? Write a java code to illustrate fragment lifecycle in android.

What is sub-activity? Develop an android application that display AlertDialog to input radius of circle from user, compute area and circumference of circle, and show the result in Toast Message.

What are benefits of intents in android? Develop an android application to implement phone directory using RecyclerView that shows contact name, phone number and profile image.

What is difference between XML and JSON? Write a java code to decode JSON data and display it in console.

What are the parameters of the insert() method in Android SQLiteDatabae? Develop an android application to modify and remove the details of Employee from SQLite table Employee (ID, Name, Department, and Salary) based on given Employee ID.

a) Write a java program in Android to send username and password to remote server using Volley POST request and display the server response in Toast message?

b) Develop an android application to display the user’s current location(write only .java and manifest file)

What do you mean by view controller? Write a swift program to find diagonal sum of \(3 \times 3\) matrix.