CODEWITHSUNDEEP
swiftnsuserdefaults
Coder
Coder

Reputation: 529

Retrieving data by NSUserDefaults Swift 2.0

Currently, my code for NSUserDefaults work fine. The only issue I have now is how can I send the data store to another page? I can get it now save the data, but how do I retrieve that same data via NSUserDefaults to a secondary page? 

import UIKit

    class MainTableViewController: UITableViewController, UITextFieldDelegate {

        let userDefaults = NSUserDefaults.standardUserDefaults()

        @IBOutlet weak var name: UITextField!

        @IBAction func btnSave() {   

            if name.text == "" {

                let alert = UIAlertController(title: "Data", message: "Missing Name.", preferredStyle: UIAlertControllerStyle.Alert)

                alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.Default, handler: nil))

                self.presentViewController(alert, animated: true, completion: nil)

            }

            else {

                userDefaults.setObject(name.text, forKey:"name")

                userDefaults.synchronize()
            }
        }

        override func viewDidLoad() {

                super.viewDidLoad()

        }

        override func viewDidAppear(animated: Bool) {

                name.text = userDefaults.stringForKey("name")
        }
    }

Upvotes: 0

Views: 551

Answers (1)

emresancaktar
emresancaktar

Reputation: 1567

You can retrieve your data from your second page with same code. Create your NSUserDefaults in second page like this ;

First of all add these codes to your FirstPage in IBAction func. Don't use the if else statement for test.

UserDefaults.standard.set("yourValue", forKey: "yourKey")

When you press the button it should be save your data with your key.

In the secondPage you can retrieve your data in your viewDidLoad method like this;

override func viewDidLoad() {
super.viewDidLoad()
print(UserDefaults.standard.value(forKey: "yourKey") ?? "defaultValue in case key is not found")
print(value)
}

It should be print your value to your console (bottom window in your xcode) when the secondPage is open. If you still can't retrieve your value please share to me a your storyboard picture. I want to see your connections.

Upvotes: 2

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