Append Dictionary<String, Any> to an Array throws exception

Question

When trying to save a Dictionary<String, Any> into a Array <Dictionary<String, Any>> system throws an exception EXC_BREAKPOINT. The same code but instead of AnyI used String was working fine: Dictionary<String, String > stored in an Array <Dictionary<String, String >>

Why this happens ? I suppose it has problems with Any type, however I can't solve this issue, because I need that Dictionary to store different kind of objects

Update If I declare array var mListItems = Array<Dictionary<String, Any>>(); as a class property then it crashes, if mListItems is declared as local variable it WORKS

Show your code, please. This works fine.

Kreiri
– Kreiri

2014-07-10 15:32:40 +00:00
Commented Jul 10, 2014 at 15:32 — Kreiri
– Kreiri, Commented Jul 10, 2014 at 15:32

vladof81 · Accepted Answer · 2014-07-16 21:48:58Z

1

Seems there are ways to fix crash:

A - Use AnyObject instead of Any as dictionary value type

class ViewController: UIViewController {

    var mListItems = Array<Any>() // Or Array<Dictionary<String, AnyObject>>()

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        var characters = Dictionary<String, AnyObject>()
        characters["a"] = "A"
        mListItems.append(characters)
    }

}

B - Use NSDictionary

var animals = NSMutableDictionary()
animals.setValue("Miao", forKey: "cat")
mListItems.append(animals) // mListItems is Array of Any

edited Jul 16, 2014 at 21:48

answered Jul 10, 2014 at 15:27

vladof81

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1 Comment

nsinvocation Over a year ago

this works in playground but not in my viewcontroller

nsinvocation · Accepted Answer · 2014-07-28 07:38:32Z

0

It was a bug in Swift. I can't reproduce it anymore.

answered Jul 28, 2014 at 7:38

nsinvocation

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Append Dictionary<String, Any> to an Array throws exception

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A - Use AnyObject instead of Any as dictionary value type

B - Use NSDictionary

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