Swift - How creating first time app launch local notification? - ios

Question

I have added these in didFinishLaunchingWithOptions
let notificationSettings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
UIApplication.sharedApplication().registerUserNotificationSettings(notificationSettings)
self.createLocalNotification()
And then, calling below function.
func createLocalNotification() {
let localNotification = UILocalNotification()
localNotification.fireDate = NSDate(timeIntervalSinceNow: 3)
// localNotification.applicationIconBadgeNumber = 1
localNotification.soundName = UILocalNotificationDefaultSoundName
localNotification.userInfo = [
"id": "not_id0",
"message": "Check notification"
]
localNotification.alertBody = "Check notification"
UIApplication.sharedApplication().scheduleLocalNotification(localNotification)
}
To cancel this notification, I have tried below in didReceiveLocalNotification But still display notification every App launching.
let app:UIApplication = UIApplication.sharedApplication()
for oneEvent in app.scheduledLocalNotifications! {
let notification = oneEvent as UILocalNotification
let userInfoCurrent = notification.userInfo! as! [String:AnyObject]
let id = userInfoCurrent["id"]! as! String
if id == "not_id0" {
//Cancelling local notification
app.cancelLocalNotification(notification)
break;
}
}
How Can I create first time local notification? If someone explain It would be great.

Answer 1

You could use NSUserDefaults as such:
In didFinishLaunchingWithOptions: in your AppDelegate:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
...
if let haveShownFirstRunNotification = NSUserDefaults.standardUserDefaults().boolForKey("haveShownFirstRunNotification") {
if !haveShownFirstRunNotification {
createLocalNotification()
}
}
...
}
And in createLocalNotification:
func createLocalNotification() {
...
NSUserDefaults.standardUserDefaults().setBool(true, forKey: "haveShownFirstRunNotification")
}

Answer 2

Add flag in in userDefaults and then check if
NSUserDefaults.standardUserDefaults().boolForKey("notified")
if not, open notification method and there place
NSUserDefaults.standardUserDefaults().setBool(true, forKey: "notified")