CODEWITHSUNDEEP
swiftnotificationcenter
mathias merlot
mathias merlot

Reputation: 595

Type 'Notification.Name' (aka 'NSNotification.Name') has no member 'UIApplication'

First it said that

'UIApplicationDidEnterBackground' has been renamed to 'UIApplication.didEnterBackgroundNotification'

and when I dot it,it said

Type 'Notification.Name' (aka 'NSNotification.Name') has no member 'UIApplication'

func listenForBackgroundNotification() {
    observer = NotificationCenter.default.addObserver(forName: Notification.Name.UIApplicationDidEnterBackground, object: nil, queue: OperationQueue.main) { [weak self] _ in
        if let weakSelf = self {
            if weakSelf.presentedViewController != nil {
                weakSelf.dismiss(animated: true, completion: nil)
            }
            weakSelf.descriptionTextView.resignFirstResponder()

        }
    }
}

Upvotes: 58

Views: 31469

Answers (5)

adrapp
adrapp

Reputation: 47

Xcode 11.4.1, Swift 5

Had the exact same issue. My problem was I didn't import UIKit in my custom class

import UIKit

Then I was able to implement the following:

name: UIApplication.didEnterBackgroundNotification

Upvotes: 2

Ravikanth
Ravikanth

Reputation: 318

Xcode 11 , swift 5

UIApplication.didBecomeActiveNotification

Upvotes: 4

HeyImChris
HeyImChris

Reputation: 31

If UIApplicaiton.didEnterBackgroundNotificaiton isn't working, try just .UIApplicationDidEnterBackground instead.

Upvotes: 3

Deviyani Swami
Deviyani Swami

Reputation: 767

Error with Type 'NSNotification' has no member 'UIApplication' in swift4.2

NotificationCenter.default.addObserver(self, selector:#selector(handleNotification), name: NSNotification.Name.UIApplicationDidEnterBackground, object: nil)

Need to Change accordingly

NotificationCenter.default.addObserver(self, selector:#selector(handleNotification), name: UIApplication.didEnterBackgroundNotification, object: nil)

Upvotes: 5

matt
matt

Reputation: 534977

Change

forName: Notification.Name.UIApplicationDidEnterBackground

to

forName: UIApplication.didEnterBackgroundNotification

Upvotes: 128

Related Questions