Apple iOS Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apple iOS Interview Questions

Questions Answers Views Company eMail

Are document objects required for an application? What does they offer?

1 2159

Which is the super class of all view controller objects?

1 5295

What is the purpose of UIWindow object?

1 2552

. How do you change the content of your app in order to change the views displayed in the corresponding window?

1 2220

Define view object.

1 2027

You wish to define your custom view. Which class will be subclassed?

1 2388

. Apart from incorporating views and controls, what else an app can incorporate?

1 2533

What are layer objects and what do they represent?

1 2924

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

1405

How to debug a crash in the auto-release pool?

1 2407

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

1332

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

1292

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

2480

Explain your process for tracing and fixing a memory leak

2443

Explain how an autorelease pool works at the runtime level

2707

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Un-Answered Questions { Apple iOS }

Explain the difference between 'protocol' and 'delegate'?

782

What is the difference between viewdidload and viewwillappear?

827

What is clean architecture ios?

829

How to register as a iphone developer?

864

Can python apps run on ios?

830

What is active state in ios?

893

Explain the difference between nsarray and nsmutablearray?

923

What is block in ios swift?

908

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

1373

How to switch off predictive text?

820

What's new with the ios 7 camera?

810

Difference between release and autorelease ?

832

Do you know which json framework is supported by ios?

816

How core data works to save data in persistent storage?

761

What is ipa?

860

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