Explain src file in android?

503

What is the difference between atomic and nonatomic properties? Which is the default for synthesized properties?

444

Explain @synchronized ,@dynamic

1296

How do I create a service in ubuntu?

384

What is weak in ios?

469

Explain the onsavedinstancestate() and onrestoreinstancestate() in activity?

488

Is android marshmallow outdated?

465

Explain the difference between copy and retain?

557

What is the difference between a fragment and an activity? Explain the relationship between the two.

526

Does ubuntu need an antivirus?

398

What is ubuntu?

390

What's the difference between file, class and activity in android?

824

Is core data is thread safe?

490

How to call objective-c code from swift?

468

Explain the difference between service, intent service, asynctask & threads?

495