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

Apple iOS Interview Questions

Questions Answers Views Company eMail

What are lifecycle events of uiviewcontroller?

797

How we can wait for some thread to finish before starting another?

836

How to de-symbolicate crash log?

809

How we can do multithreading in ios?

907

Explain ~/documents, ~/library, ~/tmp. What directory is ~ on ios?

800

Arc is compile time or run time feature?

925

Is uikit thread safe?

862

Why do we override drawrect: method?

855

What does static analyser do?

866

What is nsuserdefaults? What type of data can we store there?

876

Explain the difference between viewdidload and viewdidappear?

900

Explain xctest test case code.

864

What is a retain cycle?

795

What is memory management handled on ios?

866

Explain the difference between bounds and frame?

882

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Un-Answered Questions { Apple iOS }

What is the meaning of 'strong'keyword?

911

What is retain in ios?

823

What is view object in iOS operating system?

985

What is a thread in ios?

763

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

1416

What is the current iphone ios?

889

Explain the difference between cocoa and cocoa touch?

905

How can we achieve singleton pattern in iOS?

897

Tell me the hierarchy of uibutton.

957

What language is ios written?

822

What is synchronous web request and asynchronous ?

896

What persistent storage used in mobile apps - ios?

886

What is libdispatch?

917

Which api would you use to write test scripts to exercise the application’s ui elements?

794

what is the difference between nonatomic & atomic ? which is thread safe and why

1407

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