adspace


what is protocol? . The use of protocol?

Answer Posted / babu

Protocol is the named list of independent methods. Protocol declaration having two sections

@required

In this section you will declare all required methods. If a class adopting this protocol should implement all required methods

@optional

In this section you will declare all optional methods.

Eg: @protocol myViewProtocol

@required

-(void)passDataToNextClass : (NSString*)myViewName

@optional

-(void)passDataToNextClass : (NSString*)myViewName

@end

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Why do all model object attributes get marked with @dynamic and not synthesised?

975


What is the purpose of reuseidentifier?

919


What's the latest version of ios?

976


Explain parent-child context setup. How does it work? What are the advantages?

870


How to handle concurrency problems in core data?

1014


What is latest ios version?

1002


What are the different store migration options? How do they work?

877


What is latest version of ios?

867


What is dependency management tools?

876


What is latest xcode version?

920


What is nsmanagedobjectcontext? What are the different concurrency types? Explain them.

832


Why do all model object attributes get marked with @dynamic and not synthesised? What does @dynamic mean?

850


What are transient properties?

925


In a single model, can I have few entities in one sqlite db file and remaining in another sqlite db file?

990