Mobile OS Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Mobile OS Interview Questions

Questions Answers Views Company eMail

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

1 3358

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

1 2808

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

1 2937

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

1 3063

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

1 3250

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

1 2459

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

1 2180

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

1 2577

How can you respond to state transitions on your app?

1 2696

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

1 2297

What is the use of controller object UIApplication?

1 3210

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

1 3224

Which app specific objects store the app's content?

1 3502

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

1 2260

Which is the super class of all view controller objects?

1 5388

Un-Answered Questions { Mobile OS }

Tell us why would you do the setcontentview() in oncreate() of activity class?

961

What is application widgets in android?

993

What language is supported by android for application development?

949

What is a toast notification?

982

What is ischecked() method?

981

What is dependency injection in ios?

1002

What json framework supported by ios?

896

What are sensors in iphone?

943

What is launcher icon?

1124

What is delegate pattern in iOS?

969

Explain what is iphone reference library?

857

Differentiate between ‘assign’ and ‘retain’ keyword.

939

What are app widgets?

998

What is foreground service?

917

How do I get to root in ubuntu?

823

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