Contus Senior Android Developer Interview Questions and Answers

Q1. Javascript basic questions, React Native interview questions
Add your answer

Q1. Describe the inner working of recyclerview?
Ans. 
RecyclerView is a flexible view for providing a limited window into a large data set.
• RecyclerView is used to display large data sets that can be scrolled efficiently.

• It reuses the views that are no longer visible to display new data.

• It uses a LayoutManager to position the items and a ViewHolder to cache the views.

• It provides built-in animations for adding, removing, and updating items.

• It supports both vertical and hori...read more
Answered by AI
Add your answer
Q2. Difference between Array and Linkedlist?
Ans. 
Array is a collection of elements of similar data type stored in contiguous memory locations. LinkedList is a data structure where each element is a separate object with a reference to the next element.
• Array has fixed size, LinkedList can grow dynamically

• Array has faster access time, LinkedList has faster insertion and deletion time

• Array is best for random access, LinkedList is best for sequential access

• Example of Arra...read more
Answered by AI
Add your answer
Q3. What is context? explain it's types
Ans. 
Context is an object that provides access to application-specific resources and classes.
• Context is used to get access to system services, resources, preferences, etc.

• There are two types of context: Application Context and Activity Context.

• Application Context is tied to the lifecycle of the application and is available throughout the application.

• Activity Context is tied to the lifecycle of an activity and is available o...read more
Answered by AI
Add your answer

Aptitude + coding test with screen sharing and audio and video recording.

Q1. Swift assessment questions and storyboard related
Add your answer