Top "Nsnotifications" questions

NSNotification objects encapsulate information so that it can be broadcast to other objects by an NSNotificationCenter object.

access object passed in NSNotification?

I have a NSNotification that is posting a NSDictionary: NSDictionary* dict = [NSDictionary dictionaryWithObjectsAndKeys: anItemID, @"ItemID", [NSString stringWithFormat:@"%i",q], @"Quantity", […

ios objective-c nsnotifications
NSNotificationCenter vs delegation( using protocols )?

What are the pros and cons of each of them? Where should I use them specifically?

iphone objective-c delegates protocols nsnotifications
How to post and receive an NSNotifications (Objective C) | Notifications (in Swift)?

Is there an easy-to-grock pattern how to send a NSNotification (Objective C) | Notification (in Swift) and how to receive one? …

iphone notifications nsnotificationcenter nsnotifications
Pass object with NSNotificationCenter to other view

I am trying to pass an object from my main view class to other notification receiver in another class. I …

iphone xcode nsnotifications nsnotificationcenter
Removing a NSNotificationCenter observer in iOS 5 ARC

I have an iOS 5 ARC-based project, and am having difficulty about where I should be removing the observer for the …

objective-c ios cocoa-touch nsnotifications nsnotificationcenter
Best way to update badgeValue of UITabBarController from a UIView

I have a tabBarController set up in the AppDelegate and have a few UIViewControllers with Nav Controllers. In one of …

iphone uiview uitabbarcontroller nsnotifications
Error with notification names while converting code to Swift 4.2

The code below was working fine before Swift 4.2: NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillChange(notification:)), name: NSNotification.Name.UIKeyboardWillShow, …

nsnotifications xcode10 swift4.2
How to find out what UITextField caused a UIKeyboardWillShowNotification?

I am trying to use a customized keyboard in my application, but I am hitting problems when trying to restrict …

iphone keyboard uitextfield nsnotifications
NSNotificationCenter Observer Not Receiving Notification

I am aware of the standard reasons as to why a notification would not be received: Deallocating or nullifying the …

ios nsnotificationcenter nsnotifications
Remove NSNotificationCenter observer

I am detecting the showing/hiding of the keyboard by adding this code in the ViewDidLoad: [[NSNotificationCenter defaultCenter] addObserver:self …

ios objective-c nsnotificationcenter nsnotifications