pass json array to another view controller and display it in different label using segue

Question

I want to send json array to another view controller and display it in different labels in another view controller ??

var sendData = [String: AnyObject]()
sendData = datas
print("Send Data : \(sendData)")
DispatchQueue.main.async {
   self.performSegue(withIdentifier: "checkLoginViewController", sender: sendData)
}

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

signUpViewController.swift:

var myarray = [String]()
var myemail = ""
var myname = ""

override func viewDidLoad() {
    super.viewDidLoad()
    MynameLabel.text = myname
    nameTextfield.text = myemail
    myarray = [myemail,myname]
    print(myarray)        
    print(myemail)
    print(myname)
}

i am able to fetch the array but the i am not able to send the array to another view controller and the i have to display it in different label

you are overriding it straight away myarray = [myemail,myname] — Scriptable
– Scriptable, Commented Apr 5, 2018 at 7:28
so how i can display it in both textfields "MynameLabel" and "nameTextfield" is my method is wrong ?? @Scriptable — Sandesh Zote
– Sandesh Zote, Commented Apr 5, 2018 at 7:30
I have no idea what you mean. should the array contain the JSON data or the values from the two textfields? — Scriptable
– Scriptable, Commented Apr 5, 2018 at 7:32
ok if i want to pass two data to next view controller ? and after passing it to next view controller i want to display it on different label how i can do that — Sandesh Zote
– Sandesh Zote, Commented Apr 5, 2018 at 7:35
array contains two data [name:sandesh, email:[email protected]] — Sandesh Zote
– Sandesh Zote, Commented Apr 5, 2018 at 7:35

vadian · Accepted Answer · 2018-04-05 07:49:40Z

1

You are mixing up array and dictionary

sendData is dictionary ([String: AnyObject])
myarray is array ([String])

Of course optional downcast sender as? [String] fails because the sender is a dictionary.

As the source is a dictionary with String keys and values change the code to

var sendData = [String: String]()

...

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

And in the second controller

var myDictionary = [String: String]()

override func viewDidLoad() {
    super.viewDidLoad()

    MynameLabel.text = myDictionary["name"]
    nameTextfield.text = myDictionary["email"]
}

Note : An unspecified value type dictionary in Swift 3+ is [String:Any] and according to the naming convention variable names are supposed to start with a lowercase letter.

edited Apr 5, 2018 at 7:49

answered Apr 5, 2018 at 7:36

vadian

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2 Comments

Sandesh Zote Over a year ago

but i want to pass two data to another view controller and in next view controller i want to display it in textfield for eg:FirstVC : name: sandesh email: [email protected] these are the data i am getting through json now i want to send these data and want to display it in textfields

Sandesh Zote Over a year ago

sorry for replying late ... it worker thank so very much @vadian

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