Un-Answered Questions { Apple iOS }

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

456


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

400


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

400


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

1274


Explain your process for tracing and fixing a memory leak

1468





Explain how an autorelease pool works at the runtime level

1422


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

521


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

392


Find the letter count in UItextfield? Including first character?

552


How to fix tableviewcell dequeue issue ?

468





Difference b/w collectionView & uitableview?

812


DB updation when app new version comes ?

335


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

438


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

594


Explain application states

364