I am trying to make it so a notification asking the user to subscribe will not appear anymore when the user is subscribed to my app, below i s my notifications class i am implementing, just having a hard time figuring out how to add code in to null out the alert when they are actually subscribed.
import Foundation
import UserNotifications
class Notifications: NSObject, UNUserNotificationCenterDelegate {
func notificationRequest() {
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { success, error in
if success {
print("All set!")
} else if let error = error {
print(error.localizedDescription)
}
}
}
func addNotification() {
print("foi")
let content = UNMutableNotificationContent()
content.title = "WARNING: Safari at risk! ⚠️"
content.subtitle = "Tap here to secure your device!"
content.sound = UNNotificationSound.default
// show this notification 3 days from now 259200
let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 259200, repeats: true)
// choose a random identifier
let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: trigger)
// add our notification request
UNUserNotificationCenter.current().add(request)
}
func clearNotification() {
UNUserNotificationCenter.current().removeAllPendingNotificationRequests()
}
}
Related
I want to develop a command line tool for notifications, like https://github.com/julienXX/terminal-notifier and
use new UserNotification API
But now the program is throw a exception:
Optional(Error Domain=UNErrorDomain Code=1 "Notifications are not allowed for this application" UserInfo={NSLocalizedDescription=Notifications are not allowed for this application})
I don't know under what circumstances the Notification Center will throw this exception, and I would like to ask what configuration needs to be added to use the Notification Center in the command line tool.
My code:
import Cocoa
import UserNotifications
class AppDelegate: NSObject, NSApplicationDelegate {
func applicationDidFinishLaunching(_ aNotification: Notification) {
// Insert code here to initialize your application
let content = UNMutableNotificationContent()
content.title = "title"
content.body = "body"
content.userInfo = ["method": "new"]
content.sound = UNNotificationSound.default
content.categoryIdentifier = "NOTIFICATION"
let testCategory = UNNotificationCategory(identifier: "NOTIFICATION",
actions: [],
intentIdentifiers: [],
hiddenPreviewsBodyPlaceholder: "",
options: .customDismissAction)
let request = UNNotificationRequest(identifier: "NOTIFICATION_REQUEST",
content: content,
trigger: nil)
// Schedule the request with the system.
let center = UNUserNotificationCenter.current()
center.setNotificationCategories([testCategory])
center.add(request) { (error) in
if error != nil {
// Handle any errors.
print(error)
}
}
}
func applicationWillTerminate(_ aNotification: Notification) {
// Insert code here to tear down your application
}
func applicationSupportsSecureRestorableState(_ app: NSApplication) -> Bool {
return true
}
}
let app = NSApplication.shared
let appDelegate = AppDelegate()
app.delegate = appDelegate
app.run()
I have this:
import SwiftUI
import UserNotifications
struct ContentView: View {
var body: some View {
VStack {
Button("Request Permission") {
RequestNotificationsAccess()
}
Button("Schedule Notification") {
ScheduleNotification()
}
}
}
}
func RequestNotificationsAccess() {
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { success, error in
if success {
print("All set!")
} else if let error = error {
print(error.localizedDescription)
}
}
}
func ScheduleNotification() {
let content = UNMutableNotificationContent()
content.title = "Title:"
content.subtitle = "some text"
content.sound = UNNotificationSound.default
// show this notification five seconds from now
let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 5, repeats: false)
// choose a random identifier
let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: trigger)
// add our notification request
UNUserNotificationCenter.current().add(request)
}
It works great but when I click multiple times on the button, the notification appears multiple times, how can I track if it was fired already and if so, don't display anything?
Thanks
ok, to make the previous notification not display, try something like this before you schedule another notification:
UNUserNotificationCenter.current().removeAllPendingNotificationRequests()
or keep track of the id and use
removeDeliveredNotifications(withIdentifiers:)"
I noob in development application on OSX. I want to create app with Share extension. After content loading I want to show Notification, but I getting error "Notifications are not allowed for this application". I don't understand why requestAuthorization method not show dialog windows with permission, and how I can allow application to send notifications.
This is my code:
import Cocoa
import UserNotifications
class ShareViewController: NSViewController {
override func loadView() {
self.view = NSView()
// Insert code here to customize the view
let item = self.extensionContext!.inputItems[0] as! NSExtensionItem
NSLog("Attachment = %#", item.attachments! as NSArray)
showNotification()
let outputItem = NSExtensionItem()
let outputItems = [outputItem]
self.extensionContext!.completeRequest(returningItems: outputItems, completionHandler: nil)
}
func showNotification() -> Void {
let notificationCenter = UNUserNotificationCenter.current()
notificationCenter.requestAuthorization(options: [.alert, .badge]) {
(granted, error) in
if granted {
print("Yay!")
} else {
print("D'oh") // Print this, not authorized
}
}
let content = UNMutableNotificationContent()
content.title = "Hello"
content.body = "This is example"
content.sound = UNNotificationSound.default
content.badge = 1
let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 5, repeats: false)
let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: trigger)
notificationCenter.add(request) { (error : Error?) in
if let theError = error {
print(theError) // Print Domain=UNErrorDomain Code=1 "Notifications are not allowed for this application"
}
}
}
}
I don't see anywhere in the documentation that says you can't schedule new Local Notifications from an extension. I do however see an apple support ticket where someone had to deal with this issue, as do I.
Basically this failure is a race-condition. The key is to not call the contentHandler of this extension method:
override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: #escaping (UNNotificationContent) -> Void) {
until after the completion handler of
notificationCenter.add(request: UNNotificationRequest>, withCompletionHandler: ((Error?) -> Void)
is called. It worked for me. Make sense?
Apple does't allow send Notifications from Share extensions.
Documentation
I have a notification function that works, see below. But I want to add an additional option, for example starting a timer, or set a flag, that is triggered by the notification event. How do I do it?
func scheduleNotification() {
let center = UNUserNotificationCenter.current()
let content = UNMutableNotificationContent()
content.title = "Late wake up call"
// Configure the trigger for a 10pm wakeup.
var dateInfo = DateComponents()
dateInfo.hour = 22
dateInfo.minute = 0
let trigger = UNCalendarNotificationTrigger(dateMatching: dateInfo, repeats: true)
// Create the request object.
let request = UNNotificationRequest(identifier: "TimesUp", content: content, trigger: trigger)
center.add(request) { (error : Error?) in
if let theError = error {
print(theError.localizedDescription)
}
}
}
From example, once the notification is triggered, I want to start a timer, or set a flag = true, ...
i'm trying to send a local notification following this tutorial:
https://useyourloaf.com/blog/local-notifications-with-ios-10/
I added this code to my viewDidLoad():
let center = UNUserNotificationCenter.current()
let options: UNAuthorizationOptions = [.alert, .sound];
center.requestAuthorization(options: options) {
(granted, error) in
if !granted {
print("Something went wrong")
}
}
let content = UNMutableNotificationContent()
content.title = "Don't forget"
content.body = "Buy some milk"
content.sound = UNNotificationSound.default()
let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 5,
repeats: false)
let identifier = "UYLLocalNotification"
let request = UNNotificationRequest(identifier: identifier,
content: content, trigger: trigger)
center.add(request, withCompletionHandler: { (error) in
if let error = error {
print("error")
}
})
but 5 seconds pass without any notification shown. the CompletionHandler is called with error being nil
If you want the notification when app is in foreground, then you'll have to add some more code into your controller,
Add the following line at the end of viewDidLoad()
center.delegate = self
This makes your ViewController the delegate to which the notification can callback when it hits.
Confirm your view controller to the delegate, (Add UNUserNotificationCenterDelegate)
class ViewController: UIViewController, UNUserNotificationCenterDelegate {
Now you can write callback methods in your ViewController.
Write the callback to present your notification, you can add this method right after viewDidLoad()
func userNotificationCenter(_ center: UNUserNotificationCenter,
willPresent notification: UNNotification,
withCompletionHandler completionHandler: #escaping (UNNotificationPresentationOptions) -> Void) {
completionHandler([.alert, .badge, .sound])
}
This will make your notification to popup even if the app is in foreground.
NOTE: It is highly recommended that you register your notifications (Local/Remote) in AppDelegate rather than ViewController.