[Solved] How to make app update available to users in the form of an attractive screen? [closed]

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You can get all App info from iTunes store lookup API: http://itunes.apple.com/lookup?bundleId=YOUR_BUNDLE_ID, in this you can get App version on App Store.

Make your design screen as you want to show your App users, Then compare your App version on App store & user’s device, if both version not equal then show the update version screen.

Below is the complete implementation to compare app version on App store & device:

func isUpdateAvailableOnStore() -> Bool {
        let infoDictionary = Bundle.main.infoDictionary
        let bundleId = infoDictionary!["CFBundleIdentifier"] as! String
        let url = URL(string: "http://itunes.apple.com/lookup?bundleId=\(bundleId)")
        let infoData = try? Data(contentsOf: url!)
        let appInfo = (try? JSONSerialization.jsonObject(with: infoData! , options: [])) as? [String: Any]
        if let resultCount = appInfo!["resultCount"] as? Int, resultCount == 1 {
            if let results = appInfo!["results"] as? [[String:Any]] {
                if let appStoreVersion = results[0]["version"] as? String{
                    let currentAppVersion = infoDictionary!["CFBundleShortVersionString"] as? String
                    if !(appStoreVersion == currentAppVersion) {
                        return true
                    }
                }
            }
        }
        return false
    }

Call this function in you func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool function of AppDelegate.

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Your code here
        if self.isUpdateAvailableOnStore(){
            // SHOW YOUR UPDATE SCREEN TO USER'S
        }else{
            // APP VERSION IS UPDATED ON DEVICE
        }
return true
}

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solved How to make app update available to users in the form of an attractive screen? [closed]