CODEWITHSUNDEEP
iosobjective-cswift3nsmutablearraydeclaration
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Reputation: 1841

Swift 3 - declaring NSMutableArray data type with custom objects

I'm having trouble declaring a NSMutableArray in Swift 3 because using legacy objective C code bridges the swift Array data type to NSArray. Here's what I'm trying to do:

var myMutableArray: NSMutableArray = [myObjectCustomClass]

But I'm getting a compiling error:

Cannot convert value of type '[myObjectCustomClass].Type' (aka 'Array.Type' to specified type 'NSMutableArray'

I've tried a few other ways as well such as:

var myMutableArray = NSMutableArray<myObjectCustomClass>
var myMutableArray:[myObjectCustomClass] = NSMutableArray<myObjectCustomClass>

but no luck. Any ideas?

Upvotes: 1

Views: 5629

Answers (1)

Suhit Patil
Suhit Patil

Reputation: 12023

You have not initialised your myObjectCustomClass while declaring as a NSMutableArray that's why its showing the error. You can initialise the array at the time of declaring or can later add elements to the array as its declared var

try initialising when you declare 

var myMutableArray: NSMutableArray = [myObjectCustomClass()] 
or 
var myMutableArray: [myObjectCustomClass] = [myObjectCustomClass()] //swift 3 way

or alternatively declare as a CustomClass Array variable and later add objects

 var myMutableArray: [myObjectCustomClass] = []
 let myObjectCustomClass = myObjectCustomClass()
 myMutableArray.append(myObjectCustomClass)

Upvotes: 2

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