how to send json array to different view controller in swift using segue

Question

i want to send the json array from one view controller to another view controller and the array should be populated in pickerview . but i am unable to send the array . i am getting the array but not able to send it

let mydata = json["data"] as! NSArray    
                                print("My Data is \(mydata)")
                                var sendData = [NSArray]()
                                sendData = mydata as! Array<NSArray>
                                self.performSegue(withIdentifier: "checkLoginViewController", sender: sendData)

    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
            if let destinationVC = segue.destination as? SignupViewController, let sendData = sender as? [String]{    
                destinationVC.dept = sendData    
            }    
        }

secondVC:

var dept = [String]()

I have two questions : What is the purpose of adding let sendData = sender as? [String] in the condition AND is destinationVC.dept = sendData really called ? — Nitish
– Nitish, Commented Mar 16, 2018 at 10:35
the error is very big ... being new to swift i am learning as well how to properly debug and understand the error @NikunjDamani — Abhijit Patil
– Abhijit Patil, Commented Mar 16, 2018 at 10:38
i am using that because in stack-overflow i have found this solution soo i have tried that but its not working . so wanted to know if i am using the correct code or not and how i can achieve that @Nitish — Abhijit Patil
– Abhijit Patil, Commented Mar 16, 2018 at 10:39
Tip: you should avoid using NSArray altogether. Stick to Swift arrays. — Eric Aya
– Eric Aya, Commented Mar 16, 2018 at 10:39

Shehata Gamal · Accepted Answer · 2018-03-16 10:36:29Z

2

The problem is that you use Array<NSArray>

  endData = mydata as! Array<NSArray>

and in prepare cast it like

   let sendData = sender as? [String]

which for sure cast will fail

answered Mar 16, 2018 at 10:36

Shehata Gamal

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8 Comments

Nitish Over a year ago

@AbhijitPatil : To add on this, you need to check the json response. That should be your starting point so as to which kind of data array you need to take.

Shehata Gamal Over a year ago

can you use let mydata = json["data"] print("\(mydata)") , and attach it so we can guide you to the correct cast

Abhijit Patil Over a year ago

My Data is ( IT , Accounts , HR ) @Sh_Khan

Nitish Over a year ago

There you go. Take [String] in both cases.

Shehata Gamal Over a year ago

IF IT,Accounts,HR are strings you can use let mydata = json["data"] as! [String]

|

Yogesh Makwana · Accepted Answer · 2018-03-16 11:01:02Z

0

   override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        if let destinationVC = segue.destination as? SignupViewController, let sendData = sender as? {    
            destinationVC.dept = sendData    
        }    
    }

try this code

answered Mar 16, 2018 at 11:01

Yogesh Makwana

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