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 the tools required to develop iOS applications?

B-Ways TecnoSoft,

1 2011

. Name the framework that is used to construct application’s user interface for iOS.

1 1786

Which API is used to write test scripts that help in exercising the application's user interface elements?

1 2871

. Why an app on iOS device behaves differently when running in foreground than in background?

1 2402

How can an operating system improve battery life while running an app?

1 2362

Which framework delivers event to custom object when app is in foreground?

1 2628

. When an app is said to be in not running state?

1 2833

. Name the app sate which it reaches briefly on its way to being suspended

1 2025

An app is loaded into memory but is not executing any code. In which state will be in?

1 1760

Assume that system is running low on memory. What can system do for suspended apps?

1 2059

How can you respond to state transitions on your app?

1 2150

. List down app's state transitions when it gets launched.

1 1853

What is the use of controller object UIApplication?

1 2676

How is the app delegate is declared by Xcode project templates?

1 2632

Which app specific objects store the app's content?

1 3045

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Un-Answered Questions { Apple iOS }

Introduction to iphone application development?

603

What is difference between category and extension in ios?

535

Is the delegate for a CAAnimation retained in iOS operating system?

645

What language is ios written in?

608

What is uiwindow in ios?

617

What is bundle id?

617

What are moments and collections?

568

Explain interfaces?

638

How do you usually persist data on ios? : IOS Architect

571

What is plist file and explain about it is usage in iOS operating system?

602

What is delegate pattern in iOS?

669

What are the different store migration options?

617

What is main thread checker?

604

What is framework in ios?

624

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

1205

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