Swift Learning - Protocols Learning

The concept of Protocols is same as that of Objective C. It provides a blue print for methods, properties. 

e.g is like below 

protocol TestProtocol 

{

var simpleDesc: String {get}

func adjust() 

}

the {get} followed by simpleDesc indicates that it is read only. 

Protocols are like first class types, which means that they can be treated like other named types. 

class SimpleProtocol2: ExampleProtocol 

{

var SimpleDescription: String = “Another very simple class”

fun adjust()

{

simpleDescroption += “adjusted”

}

}

var protocolArray : [ExampleProtoocl] = [SimpleClass(), SimpleClasse(), Simpleclass()]

References:

https://developer.apple.com/library/prerelease/ios/referencelibrary/GettingStarted/DevelopiOSAppsSwift/Lesson1.html#//apple_ref/doc/uid/TP40015214-CH3-SW1