Input Name Notification For Free

NSNotificationCenter addObserver in Swift import Foundation class User { var userId: String = "" func doLogout() { // write your code to logout the user // you will send an event once the user will be logged out. ... import Foundation import UIKit class HomeController: UIViewController { override func viewDidLoad() { super.

One useful function that's native to JavaScript is the alert() function. This function will display text in a dialog box that pops up on the screen. Before this function can work, we must first call the showAlert() function. JavaScript functions are called in response to events.

Notification Center shows your notifications history, allowing you to scroll back and see what you've missed. There are two ways to see your alerts from the Notification Center: From the Lock Screen, swipe up from the middle of the screen. From any other screen, swipe down from the center of the top of your screen.

Notifications are broadcasted using centralized instance of NotificationCenter . Notification object, identified by name , may contain reference to the object that has sent the notification, and some arbitrary information in the userInfo dictionary. NotificationCenter registers observers and delivers notifications.

Registering local notification to iOS @IBAction func setReminder(_ sender: Any){ let center = UNUserNotificationCenter.current() let content = UNMutableNotificationContent() content.title = "Notifiaction on a certail date" content.body = "This is a local notification on certain date" content.sound = .default.

The alert() method in JavaScript displays an alert box with a specified message and an OK button. It is often used to make sure that information comes through to the user. The alert box takes the focus away from the current window and forces the browser to read the message.

In Swift, Notification names use the nested NSNotification.Name type. That gives us the answer we were looking for. If you switch to Objective-C in the documentation, you can see the type definition of NSNotificationName .