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 advantage of categories? What is difference between implementing a category and inheritance?

763

What is an iphone app?

929

What are the requirements for developing iphone apps?

839

What is push notification?

958

Assume that your app is running in the foreground but is currently not receiving events. In which sate it would be in?

916

When to use nsmutablearray and when to use nsarray?

813

Describe the functionality of accelerometer of an iphone ?

855

What is cococa and cocoa touch?

955

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

818

What is latest mac os version?

919

What is meaning of 'synthesize' keyword ?

900

What is meaning of 'retain' keyword?

927

What is the meaning of 'weak' keyword?

882

What are the viewcontroller lifecycle in ios?

935

What is difference strong and weak reference ? Explain.

905

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Un-Answered Questions { Apple iOS }

Define 'weak' keyword?

861

Can you please explain the difference between nsarray and nsmutablearray?

820

Why is delegate weak in ios?

883

Can you please explain the difference between frame and bounds?

883

What is tableview datasource?

833

What is thread safe?

824

What are the Different types of persistent stores?

910

How do I create a class in xcode?

939

What are properties in ios?

848

What is uikit framework in ios?

823

Who calls the dealloc strategy?

884

What is an iphone app?

929

What is dependency management tools?

835

What are all the difference between iOS3, iOS4 and iOS5?

877

What is use of uiapplication class?

865

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