OkCredit Senior Android Developer Interview Questions and Answers

ViewModel is a class designed to store and manage UI-related data in a lifecycle-conscious way.

• ViewModel is part of Android Architecture Components.

• ViewModel survives configuration changes such as screen rotations.

• ViewModel is not destroyed when the associated UI controller is destroyed.

• ViewModel should not contain references to Views or Context to avoid memory leaks.

Coroutines are lightweight threads that can be suspended and resumed, allowing for asynchronous programming in a sequential manner.

• Coroutines are implemented using suspend functions and can be launched using 'launch' or 'async' builders.

• They are based on the concept of continuation passing style, where the state of the function is saved and can be resumed later.

• Coroutines can be used to perform long-running tasks witho...read more