Sharing data in between apps in IOS

Solutions Collect From Internet About “Sharing data in between apps in IOS”

You can turn on App group on your App Project capabilities tab on both of your apps with the same group container ID. “”

enter image description here

Then you can access the same folder from your apps using the following url:

let sharedContainerURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "")!

So if you would like to share a switch state from two different apps you should do it as follow:

import UIKit

class ViewController: UIViewController {
    @IBOutlet weak var sharedSwitch: UISwitch!
    let switchURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "")!
    override func viewDidLoad() {
        NotificationCenter.default.addObserver(self, selector: #selector(updateSwitch), name: .UIApplicationDidBecomeActive, object: nil)
    func updateSwitch(_ notofication: Notification) {
        sharedSwitch.isOn = NSKeyedUnarchiver.unarchiveObject(withFile: switchURL.path) as? Bool ?? false
    @IBAction func switched(_ switch: UISwitch) {
        let success = NSKeyedArchiver.archiveRootObject(switch.isOn, toFile: switchURL.path)