Learn note from the start of the zero (Day67)--cocoa Touch design mode and application MVC mode

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MVC ( Model-view-controller , the Model - View - Controller) mode is one of the very old design patterns that first appeared in Smalltalk language. Today, many computer languages and architectures use the MVC pattern.  

MVC Mode Overview

mvc A pattern is a composite design pattern, which is composed of observer strategy composite ") mode. mvc mode by 3 3

• model

• view controller  

   

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corresponding to the "content" and "form" in philosophy, in the MVC in the model, the pattern is "content", which stores the data required by the view, the view is "form", is the external representation, and the controller is their medium.

Cocoatouch in the MVC Mode

we're talking about generic. MVC mode, and Cocoa and the Cocoa Touch in the framework MVC Patterns and traditional MVC mode is slightly different, the former model and view can not make any communication, all communication is done through the controller,.

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in theCocoa Touchframework ofUIKitFramework,Uiviewcontrolleris the root class for all controllers, such asUitableviewcontroller,Uitabbarcontrollerand theUinavigationcontroller. UIViewis the root class for views and controls.

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Learn note from the start of the zero (Day67)--cocoa Touch design mode and application MVC mode