nsnotifications

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Warning for iOS/iPhone users about duplicate NSNotification observations

This isn\'t a question so much as a warning to others to save them some time. NSNotificationCenter on iOS 3/iPhone OS 3 (I\'m assuming also Mac OS X and iOS 4) has the following behavior:[详细]

2023-01-03 19:35 分类：问答
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 the TabBar items, after I have pushed a few UIViews I want to update the badgeValue[详细]

2022-12-31 15:32 分类：问答
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 开发者_如何学编程Swift) and how to receive one? Code snippet? The docs write like 150 pages on the topic[详细]

2022-12-27 18:27 分类：问答
NSNotification on multiple objects

In my NSApp delegate I add an observer of an object that is an NSWindow subclass that gets initiated in the delegate itself and that posts a notification once the window gets clicked. The selector is[详细]

2022-12-27 01:12 分类：问答
NSNotification and Multithreading

I\'m trying to get the notification NSTaskDidTerminateNotification in my multithreaded app but I can\'t get it working. It does seem to work when I tested it on a single threaded app. In init I have [[详细]

2022-12-25 12:20 分类：问答
NSNotification race condition

Are there any race condition issues when using NSNotifications within a single thread? Here is a sample method:[详细]

2022-12-24 09:24 分类：问答
NSNotification vs. Delegate Protocols?

I have an iPhone application which basically is getting information from an API (in XML, but maybe JSON eventually). The result objects are typically displayed in view controllers (tables mainly).[详细]

2022-12-22 23:23 分类：问答
iPhone Objective-C Placement of NSNotifications

I have a fairly complex iphone application that has many asynchronous processes occurring.To deal with this I\'m making heavy use of NSNotification Center.My question is what is the \"best practice\",[详细]

2022-12-19 21:57 分类：问答
How to send and receive data along with the event in Objective-C?

I created a program to send and receive events through NSNotification. Now i need to send data along with the event. Can anyone suggest me how t开发者_开发百科o do this in coding in Objective-C??There[详细]

2022-12-19 06:03 分类：问答
Core Data: How do I maintain without retain?

I am trying to debug a very nefarious problem with some iPhone Core Data code. The setup is this: I have a thread which exists to poll a web service and send its results via NSNotification to the mai[详细]

2022-12-18 03:18 分类：问答