ITC Infotech Senior IOS Developer Interview Questions and Answers

Q1. Explain MVVM and its pros/cons
Ans. 
MVVM is a design pattern that separates the UI, business logic, and data layers in an iOS application.
• Model: Represents the data and business logic of the application.

• View: Represents the UI components of the application.

• ViewModel: Acts as a mediator between the Model and View, handling the presentation logic and data binding.

• Pros: Separation of concerns, easier to maintain and test, promotes reusability.

• Cons: Increase...read more
Answered by AI
Add your answer
Q2. Multithreading in swift
Ans. 
Multithreading in Swift allows for concurrent execution of tasks to improve performance and responsiveness.
• Use Grand Central Dispatch (GCD) for managing concurrent tasks

• Avoid blocking the main thread to prevent UI freezes

• Consider using Operation and OperationQueue for more complex task management
Answered by AI
Add your answer

Complex Question are there like images patter and we have to predict next image

There are two task for coding. both are easy.

Q1. 1.What is the difference between atomic and nonatomic properties. 2.How do you handle memory management in Swift. 3.Difference between classes and struct in Swift. 4. What is Factorial Pattern.
Ans. 
1. Atomic properties ensure that the value is always fully retrieved or set, while nonatomic properties do not guarantee this. 2. Memory management in Swift is handled automatically using Automatic Reference Counting (ARC). 3. Classes are reference types, while structs are value types in Swift. 4. Factorial pattern is a design pattern used to calculate the factorial of a number.
• Atomic properties ensure thread safety by...read more
Answered by AI
Add your answer

Q1. What is debouncing technique in swift. what is factorial pattern in swift what is dispatch_wait. Explain bluethooth in iOS. Explain InAppPurchases in iOS.
Ans. 
Debouncing technique in Swift is used to limit the rate at which a function is called, preventing it from being called multiple times in a short period.
• Debouncing involves setting a time threshold and only allowing the function to be called after that threshold has passed without any new calls.

• It is commonly used in scenarios like search bars or buttons to prevent rapid firing of events.

• Example: Implementing a search f...read more
Answered by AI
Add your answer

Q1. Multithreading, Collection list
Add your answer
Q2. Java Program on Strings, Threads
Add your answer

Q1. Project Explanation
Add your answer
Q2. Git Commands, Linux Commands
Add your answer

Q1. Basic ios development questions
Add your answer
Q2. Core data or any other data base
Add your answer

Q1. Some basic Questions related to iOS concepts.
Add your answer
Q2. Multithreading and multitasking.
Add your answer

Q1. Advanced iOS Questions.
Add your answer
Q2. API Calling, Json Parsing
Add your answer

Q1. Solid principles, core java,kotlin
Add your answer
Q2. Mvvm,mvp,mvc,flows
Add your answer
Q3. State flow shared flow
Add your answer
Q4. Builder pattern
Add your answer

Q1. Technical scenarios
Add your answer
Q2. Java coding,data structures
Add your answer
Q3. Algo,complex views,compose
Add your answer

Q1. Android Basics on mvvm architecture
Add your answer
Q2. Navigation Component
Add your answer
Q3. Jetpack components- work manager, viewmodel
Add your answer

Q1. Managerial questions
Add your answer