Swift: NSDictionary as NSArray - json

Question

let voicemailFiles = voicemail.value( forKey: "voicemail") as! [AnyObject]
// Could not cast value of type '__NSDictionaryI' (0x10ca8a228) to 'NSArray' (0x10ca89d78)
let voicemailFiles = voicemail.value( forKey: "voicemail") as! [String : String]
// Could not cast value of type '__NSArrayI' (0x104df9448) to 'NSDictionary' (0x104df7fa8).
When trying to put the JSON ( as seen below) into a variable, i am hitting the above errors for the 2 methods of casting for "voicemail".
let config = voicemail.value(forKey: "config") as AnyObject
This line for the key of config works perfectly.
The variable of voicemail is an [AnyObject] value of the key, voicemailboxes
{
"voicemailboxes": [
{
"config": {
"id": "5",
"description": "Test"
},
"voicemail": [
{
"id": "id001",
"caller": "...",
"caller_UK": "...",
"called": "+...",
"called_UK": "...",
"received": "...",
"duration_seconds": "..."
},
{
"id": "id002",
"caller": "...",
"caller_UK": "...",
"called": "..."
}
]
}
]
}

Answer 1

voicemailboxes is an array of Dictionary.
voicemail is also an array of Dictionary.
Need to parse them appropriately.
On playground:
let json = """
{
"voicemailboxes": [
{
"config": {
"id": "5",
"description": "Test"
},
"voicemail": [
{
"id": "id001",
"caller": "...",
"caller_UK": "...",
"called": "+...",
"called_UK": "...",
"received": "...",
"duration_seconds": "..."
},
{
"id": "id002",
"caller": "...",
"caller_UK": "...",
"called": "..."
}
]
}
]
}
"""
let data = json.data(using: .utf8)!
let jsonDict = try! JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions.allowFragments) as! [String:Any]
let voicemailboxes = jsonDict["voicemailboxes"] as! [Any]
let voicemailboxesfirst = voicemailboxes.first as! [String:Any]
let voicemail = voicemailboxesfirst["voicemail"] as! [Any]
let voicemailfirst = voicemail.first as! [String:Any]
print(voicemailfirst)
Output:
["received": ..., "called": +..., "id": id001, "caller_UK": ..., "duration_seconds": ..., "caller": ..., "called_UK": ...]

Answer 2

As per your JSON it is clear that
voicemailboxes is [[string:Any]] (Array of Dictionary) and
voicemail is [[String:String]] (Array of Dictionary)
NOTE: guard or if let required to check correct response below is just example
You can access it like
((dictMain["voicemailboxes"] as! [[String:Any]]).first!["voicemail"] as! [[String:Any]])
Hope it is helpful to you

Answer 3

use below code
if let any = voicemail.value( forKey: "voicemail") {
if let tmpArray = any as? Array {
let voicemailFiles = tmpArray
}
}