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Mobile OS Interview Questions
Questions Answers Views Company eMail

What is thread safe?

 443

How many types of background modes supported in ios?

 412

How we can execute some code when app is in background?

 411

How you can add frameworks in xcode project?

 393

What is a difference between stack and heap memory?

 389

What are different instruments xcode supports for app profiling?

 408

What do you mean by rest?

 447

What is the difference between strong and retain.

 389

How to animate view with constraint?

 437

What is the difference between weak and strong?

 461

What is the difference between developer and enterprise developer accounts?

 409

What are various singleton instances provided by frameworks?

 394

Explain concept of notification center, local and remote notifications.

 348

Is there an internet explorer for android?

 474

What is meant by mobile code?

 1

Un-Answered Questions { Mobile OS }

How do you troubleshoot android application which is crashing frequently?

526

Explain the difference between nine-patch image vs regular bitmap image?

509

What is the significance of “?” In swift?

535

What is the floating point numbers and what are the types of floating number in swift?

483

When a nsfetchrequest fetches an entity object from store, does it fetch all of its data at once?

457




Can I write multi-player games using wi-fi or blue tooth in the device.?

525

What are the Different types of persistent stores?

440

What are the application lifecycle in ios?

468

What are the lifecycle events of uiviewcontroller?

461

What is a sticky intent in android?

495

What is the importance of having an emulator within the android environment?

619

What is mipmap/ directory?

511

How to handle concurrency problems in core data?

456

What is synchronous vs. Asynchronous in gcd ?

468

What is the usage of switch statement in swift language?

496

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