Mobile OS Interview Questions
Questions Answers Views Company eMail

Difference between iOS 3 , iOS4, iOS 5, iOS 6, iOS 7 and iOS 8 (What are the new features)

613

Explain about design patterns in iOS

1 825

Explain about MVC Design patters

1 744




what is singleton class? Why the whole application creates a single instance?

1 704

Explain @property ,@synthesize

1 677

what is the difference between nonatomic & atomic

1 920

What is bundle

1 789

Explain collections in iOS

1 703

Explain application states

382

Explain UIView life cycles

1 1101

Screen resolution of iPhone & iPad

1 774

Explain about NSURL Connection Delegates

1 933

Explain @synchronized ,@dynamic

733

what is the difference between nonatomic & atomic ? which is thread safe and why

530

Explain Apple push notification

465







Un-Answered Questions { Mobile OS }

How to convert MVC design pattern to MVVM design patterns

502


How to get the geolocation data on a picture?

480


what is your preferred programming language? Why? How long will it take you to learn a new programming language?

425


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

416


Explain application states

382






Explain @synchronized ,@dynamic

733


The last callback in the lifecycle of an activity is onDestroy(). The system calls this method on your activity as the final signal that your activity instance is being completely removed from the system memory. Usually, the system will call onPause() and onStop() before calling onDestroy(). Describe a scenario, though, where onPause() and onStop() would not be invoked.

1298


Difference between iOS 3 , iOS4, iOS 5, iOS 6, iOS 7 and iOS 8 (What are the new features)

613


What is the correct way to check if a Compass sensor is present on the system? Explain your answer.

866


Under what condition could the code sample below crash your application? How would you modify the code to avoid this potential problem? Explain your answer.     Intent sendIntent = new Intent();     sendIntent.setAction(Intent.ACTION_SEND);     sendIntent.putExtra(Intent.EXTRA_TEXT, textMessage);     sendIntent.setType(HTTP.PLAIN_TEXT_TYPE); // "text/plain" MIME type     startActivity(sendIntent);

1565


Explain how an autorelease pool works at the runtime level

1454


Explain which all events will perform an ios application in background

626


Why is Ubuntu the most popular operating system for cloud? 

474


How will you implement sets and the intersection operation? Complexity?

426


How to fix tableviewcell dequeue issue ?

489