I got answer about Foundation magic for this question: What's the 开发者_如何转开发most *simple* way to implement a plain data object which conforms key-value-observing?
I have UITableViewCells that have an imageView that loads a UIImage from a model object myObject.The UIImage property on myObject is loaded asynchronously and I observe changes to it from the tableVie
My model object has a UIImage *iconImg that is often updated asynchronously.I want to allow instances of other classes to observe any changes to myModel.iconImg elegantly.Right now, my asynchronous im
This is my setup: In my app delegate, I register my defaults. In my preferences nib I have bound a checkbox to the shared user defaults with controller key values and model key path test.
This is a sample from book \"Cocoa Programming For Mac Os X 3rd(HD)\" chapter 7 \"Key-Value Coding. Key-Vaule Observing
I am a beginner in the realm of cocoa and don\'t understand when you should choose key value observing over the Mode开发者_StackOverflow中文版l View Controller. My question: Can everything that is don
I\'m trying to use KVO to observe properties on a UIView subclass in order to trigger drawing by calling drawRect:. In my initWithFrame:, I have this:
I\'m relatively new to Core Data and KVC, but I would like some pointers on registering listeners for changes i开发者_如何学Gon Core Data objects.Here\'s the situation:
Regarding \"Ensuring KVO Compliance\", there are some official definition which seem like hard to understand
I need some help trying to understand KVO on a complex hierarchy of objects. Let me set the scenario. The MyClass object has a mutable array property that contains MyPerson objects. I want to observe
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