50 iOS Interview Questions And Answers

Durul Dalkanat
12 min readDec 27, 2016

Updated on Nov, 2023

1- How could you set up Live Rendering?
The attribute @IBDesignable lets Interface Builder perform live updates on a particular view. IBDesignable requires Init frame to be defined as well in UIView class.

2- What is the difference between Synchronous & Asynchronous task?
Synchronous: waits until the task has been completed…