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 3311

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

1 2748

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

1 2864

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

1 3002

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

1 3195

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

1 2384

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

1 2119

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

1 2479

How can you respond to state transitions on your app?

1 2621

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

1 2234

What is the use of controller object UIApplication?

1 3129

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

1 3146

Which app specific objects store the app's content?

1 3436

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

1 2176

Which is the super class of all view controller objects?

1 5309

Un-Answered Questions { Mobile OS }

Do you know what are layer objects and what do they represent?

904

What is singleton class in ios?

770

What are the design patterns in ios?

888

What is android sdk?

1004

What is Delegation in iOS?

815

In swift, what type of object are basic data types?

919

What are the approaches required to share persistent user-defined objects?

898

State the code names of android along with the year when they were brought in?

796

Does Android support the Bluetooth serial port p roflle?

1007

How does manifest file plays an integral role in app development?

890

Difference between categories and extensions?

837

What are the four essential states of an activity?

1045

Explain how the volume work between apps and hardware buttons on the device?

917

Explain how to delete images in ios?

866

What are broadcast receivers?

914

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