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 is the use of the UI Automation API?

1 2075

What is UIApplication?

1 3255

What happens when IApplication does not handle an event?

1 2138

How would you create your own custom view?

1 1997

What is App Bundle?

1 2092

Whats a struct?

1 2039

Whats the difference between NSArray and NSMutableArray?

1 2208

Explain retain counts

1 3199

Whats the difference between frame and bounds?

1 3196

Is a delegate retained?

1 2839

Outline the class hierarchy for a UIButton until NSObject.

1 3285

Multitasking support is available from which version?

1 2442

How many bytes we can send to apple push notification server?

1 2376

Where can you test Apple iPhone apps if you don’t have the device?

1 1972

Which JSON framework is supported by iOS?

B-Ways TecnoSoft,

1 2801

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Un-Answered Questions { Apple iOS }

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

1247

Explain concept of notification center, local and remote notifications.

648

What are lifecycle events of uiviewcontroller?

710

What are layer objects and what do they represent in iOS operating system?

745

Explain me what is "delegate"?

852

What is the difference between 'assign' and 'retain' keyword?

869

How to parse xml? Explain

806

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

703

What are selectors in objective-c?

761

What is the 'interface' and 'implementation'?

787

Name the application thread from where uikit classes should be used?

928

What is swift and what is objective-c?

746

Explain the characteristics of ios?

755

What is arc ? How it works?

912

What is the purpose of reuseidentifier? What is the benefit of setting it to a non-nil value?

688

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