无法转换类型为&#39;Swift._NativeDictionaryStorageOwner的值 <Swift.String, Swift.AnyObject> &#39;（0x40c2134）到&#39;NSArray&#39;（0x383bb8d8）

Question

Upon revisiting some code that seemed to work with Xcode7.3, I noticed that I am getting a Could not cast value of type 'Swift._NativeDictionaryStorageOwner' (0x40c2134) to 'NSArray' (0x383bb8d8).

userdata.data = userOtherInfo[indexPath.row] as! NSArray

Here is the section of code that appears to be the problem:

    func collectionView(collectionView: UICollectionView,        didSelectItemAtIndexPath indexPath: NSIndexPath) {

    let userdata:SubContentsViewController! = SubContentsViewController()
    let storyboard = UIStoryboard(name: "SubContentsViewController", bundle: nil)
    let subContentsVC = storyboard.instantiateViewControllerWithIdentifier("SubContentsViewController") as! SubContentsViewController
    userdata.data = userOtherInfo[indexPath.row] as! NSArray
    self.navigationController?.pushViewController(subContentsVC, animated: true)
}

Answer 1

As you wrote in your comment

rows = value["search_result"] as? [[String: AnyObject]]
self.userOtherInfo = rows

rows / userOtherInfo is an array of dictionaries ( [[String: AnyObject]] ) on success.
That's what the error message says :

Cannot cast Dictionary to Array.

The solution is very very simple.

Since the compiler already knows that userOtherInfo contains an array of [String: AnyObject] you need no casting at all.

userdata.data = userOtherInfo[indexPath.row] // object is [String:AnyObject]

Make sure that userdata.data is declared as [String:AnyObject] or a more specific dictionary.

Answer 2

This solution is working fine for me. let mutableDict = NSMutableDictionary(dictionary: newDictionaryResult!)