how to cancel a localNotification with the press of a button in swift?

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I am scheduling a location based UILocalNotification with the click of a button . But when i try to cancel the localNotification by clicking the same button again, it doesn't cancel the notification. I am using UIApplication.sharedApplication().cancelLocalNotification(localNotification) to cancel my scheduled location based local notification. What am i doing wrong ? here is my implementation

@IBAction func setNotification(sender: UIButton!) {
    if sender.tag == 999 {
        sender.setImage(UIImage(named: "NotificationFilled")!, forState: .Normal)
        sender.tag = 0
        regionMonitor() //function where notification get scheduled

    } else {
        sender.setImage(UIImage(named: "Notification")!, forState: .Normal)
        sender.tag = 999 }

what should i enter into the else block so that the scheduled notification gets canceled. Cannot clear all notifications. here is the didEnterRegion block code where i trigger the local notification

func locationManager(manager: CLLocationManager!, didEnterRegion region: CLRegion!) {
    localNotification.regionTriggersOnce = true
    localNotification.alertBody = "Stack Overflow is great"
    UIApplication.sharedApplication().scheduleLocalNotification(localNotification)
    NSLog("Entering region")
}

You could try to remove all notifications if this is acceptable in your context. Like this:

for notification in UIApplication.sharedApplication().scheduledLocalNotifications as! [UILocalNotification] { 
  UIApplication.sharedApplication().cancelLocalNotification(notification)
}

Or as stated by Logan:

UIApplication.sharedApplication().cancelAllLocalNotifications()

Or as stated by Gerard Grundy for Swift 4:

UNUserNotificationCenter.current().removeAllPendingNotificat‌​ionRequests()

Manage, Delete and Update Notifications in iOS 10 – Make App Pie, Besides adding notifications This lets you monitor, delete and update already scheduled Press the Set Notification button and you get this. You create a button by providing an action and a label. The action is either a method or closure property that does something when a user clicks or taps the button. The label is a view that describes the button’s action, for example, by showing text such as Cancel or an icon such as a back arrow.

Solution for iOS 10+ Swift 3.1

let center = UNUserNotificationCenter.current()
center.removeAllDeliveredNotifications() // To remove all delivered notifications
center.removeAllPendingNotificationRequests()

Local and Remote Notification Programming Guide: Scheduling and , Apple Push Notification Service Local notifications are supported only in iOS, watchOS, and tvOS. The steps for configuring a local notification are as follows: For more information on scheduling and canceling requests, see to determine which action buttons, if any, to include in the notification� You can cancel one or more local notifications using the cancelLocalNotification (_:) or cancelAllLocalNotifications () method of the UIApplication object. When the system delivers a local notification, several things can happen, depending on the app state and the type of notification.

You can cancel a notification using its identifier :

let center = UNUserNotificationCenter.current()
center.removeDeliveredNotifications(withIdentifiers: [String])
center.removePendingNotificationRequests(withIdentifiers: [String])

UILocalNotification, Important: UILocalNotification is deprecated in iOS 10. You can cancel one or more local notifications using the cancelLocalNotification(_:) or If the notification is an alert and the user taps the action button (or, if the device is locked, custom actions that your app can perform in response to a local or push notification. Flutter Local Notification has lots of features and it’s little difficult to set up. As I had shown you the basic setup, Now you can go through the official Github Repo and implement other

You can save a unique value for key in your local notification's userinfo and cancel it by getting the localnotification using that key's Value. Try this (for Objective C):

NSArray *notifArray = [[UIApplication sharedApplication] scheduledLocalNotifications];
for (int i=0; i<[notifArray count]; i++)
{
    UILocalNotification* notif = [notifArray objectAtIndex:i];
    NSDictionary *userInfoDict = notif.userInfo;
    NSString *uniqueKeyVal=[NSString stringWithFormat:@"%@",[userInfoDict valueForKey:@"UniqueKey"]];
    if ([uniqueKeyVal isEqualToString:keyValToDelete])
    {
        [[UIApplication sharedApplication] cancelLocalNotification:notif];
        break;
    }
}

how to cancel a localNotification with the press o, But when i try to cancel the localNotification by clicking the same button again, scheduleLocalNotification(localNotification) NSLog("Entering region") }. iOS. The crosswalk button. An “On” button. Elevator floor buttons. The iPhone’s home screen button. Good web form Submit buttons. The “Call flight attendant” button. Emergency brakes. It doesn’t matter how many times you press them! (And there’s zero uncertainty, and no side-effects, in doing so, i.e. it’s very safe.)

For Swift 3.0 and iOS 10:

UNUserNotificationCenter.current().removeAllDeliveredNotifications()

Scheduling notifications , We only need two buttons to control the entire user interface for this project, and When you request permission to show notifications, iOS shows an alert like this one. First, you can cancel pending notifications – i.e., notifications you have in the simulator, then press Cmd+L to lock the device and have it show an alert� When you add a button to your interface, it is in the default state initially, which means the button is enabled and the user is not interacting with it. As the user interacts with the button, its state changes to the other values. For example, when the user taps a button with a title, the button moves to the highlighted state.

Local Notification iOS Tutorial, In this tutorial we will create a local notification including an image. Press the Home button in the Simulator(Shift + Command + H). Within 10� In this lesson, we’ll look at the local notification. We’ll make a HIIT timer app to show aspects of the local notification. Set Up a New Project. Start a new single view project called SwiftLocalNotificationDemo with Swift as the language and a Universal device. Save the file, and then go to the story board.

Local User Notifications with UNUserNotificationCenter, One of the main differences between Local notification and a Push notification is that local notifications are created, scheduled and are sent from a user iOS device. You can also add an Action button to a notification alert that is presented to How to Read and Cancel Local Notification Requests � Silent� Press Command-Shift-H. Eventually the notification appears: Drag the small oval at the bottom of the notification down.

iOS Swift Local Notifications - Register , With local notification you don't need a server to push data to Apple Push addSubview(myButton2) //Create button to cancel the local Notification let� Other notifications display information in a notification interface, but the user's only course of action is to launch the app. For an actionable notification, the system displays one or more buttons in addition to the notification interface. Tapping a button sends the selected action to the app, which then processes the action in the background.

Comments
  • If you're going to cancel all of them regardless, could probably just use: UIApplication.sharedApplication().cancelAllLocalNotifications()
  • Or that! xD Nice contribution. Thanks!
  • Its cancelling the Local Notification but does not cancelling custom sound as its playing continuously around 3 to 4 seconds.
  • Thanks @GerardGrundy added to the answer! :)
  • Swift4.1 update Logans and → UIApplication.shared.cancelAllLocalNotifications()