Un-Answered Questions { Apple iOS }

Explain what is the stack of autorelease pools. How autorelease pool work under the hood?

434


How will you implement sets and the intersection operation? Complexity?

381


what is your preferred programming language? Why? How long will it take you to learn a new programming language?

382


What happens when you invoke a method on a nil pointer?

1243


Explain your process for tracing and fixing a memory leak

1437





Explain how an autorelease pool works at the runtime level

1392


When dealing with property declarations, what is the difference between atomic and non-atomic?

495


If you use location services in your app, will it drain your battery.if yes? How can we avoid?

371


Find the letter count in UItextfield? Including first character?

527


How to fix tableviewcell dequeue issue ?

444





Difference b/w collectionView & uitableview?

750


DB updation when app new version comes ?

320


How to do upload of large sized video file to server ? while uploading user presses “Homebutton” How long will execute?

414


Difference between iOS 3 , iOS4, iOS 5, iOS 6, iOS 7 and iOS 8 (What are the new features)

573


Explain application states

343