CODEWITHSUNDEEP
iosswiftswift2nsdictionarynsmutabledictionary
David Manpearl
David Manpearl

Reputation: 12656

iOS Swift 2 how to convert NSDictionary into NSMutableDictionary

How to convert an NSDictionary into a NSMutableDictionary in Swift?

I have a line of code regarding NSDictionary that no longer compiles in Swift 2. Please show me how to modify this line of code to bring it into compatibility with Swift 2?

let nsDict = anotherNsDictionary["amember"] as? NSDictionary
let mutableNsDict = nsDict.mutableCopy() as! NSMutableDictionary

Xcode 7.3 returns the following compile error:

Error: Ambiguous use of 'mutableCopy()'

I understand that this should probably all be changed to use a Swift Dictionary instead of NSDictionary, but major modification of this code base is not an option at this time.

Upvotes: 1

Views: 1299

Answers (1)

EricS
EricS

Reputation: 9768

This works fine:

    let nsDict = NSDictionary( object:"obj", forKey:"key" )
    let mutableNsDict = nsDict.mutableCopy() 
    print( mutableNsDict )

Upvotes: 2

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