Mobile OS Interview Questions
Questions Answers Views Company eMail

 What is implicit intent in android?

1 656

What is explicit intent in android?

1 630

How to call another activity in android?

1 840




What is service in android?

1 744

What is the name of database used in android?

1 580

What is AAPT?

1 717

What is content provider?

1 630

 What is fragment?

1 677

What is ADB?

1 659

 What is NDK?

1 636

What is ANR?

1 660

There are four Java classes related to the use of sensors on the Android platform. List them and explain the purpose of each.

1 4221

What is DDMS? Describe some of its capabilities.

1 1858

If the Activity is showing an animation that indicates some kind of progress, what issue might you encounter and how could you address it?

607

What is a ContentProvider and what is it typically used for?

492







Un-Answered Questions { Mobile OS }

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

398


Can you use an Intent to provide data to a ContentProvider? If not, what would be the proper mechanism for doing this?

562


Explain your process for tracing and fixing a memory leak

1467


How to get the geolocation data on a picture?

461


Find the letter count in UItextfield? Including first character?

550






Explain in brief about the important file and folder when you create new android application.

644


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);

1507


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

389


Explain @synchronized ,@dynamic

710


Explain what is the stack of autorelease pools. How autorelease pool work under the hood?

454


Explain application states

363


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

521


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

504


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

399


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

593