Swift: Need to move data stored using a button to another View Controller

Question

Using a button to collect a phone number and then reading and storing the phone number under the button function.

@IBAction func viewRewardsButtonTapped(_ sender: UIButton) {    

    view.endEditing(true)

    // Validate format

    let phoneNumberInput = phoneInput.text

}

Is there a better way to store the phone number

phoneNumberInput

and get it to another

UIViewController

?

I currently can't get the other

UIViewController

to recognize the variables stored under the

@IBAction

function.

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Answer 1

You could use UserDefaults:

// Set phone number
UserDefaults.standard.set(phoneInput,text, forKey: "phoneNumber")

// Get phone number
UserDefaults.standard.string(forKey: "phoneNumber")

Or if you want to segue at the same time that you´re clicking the button use this:

self.performSegue(withIdentifier: "showVC2", sender: phoneNumber.text)

override func prepare(for segue: UIStoryboardSegue, sender: Any!) {
    if (segue.identifier == "showVC2") {
        if let phoneNumber = sender as? String {
            let vc = segue.destination as! YourSecondVC
            vc.phoneNumber = phoneNumber
        }
    }
}

So you basically create the segue and declare a variable for phoneNumber in your second VC so that you can pass the value to it.

Swift: Need to move data stored using a button to another View Controller

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