斯坦福大學公開課：iPad和iPhone應用開發(iOS5) 學習筆記 1

最近想學習下iOS的開發，在網易公開課上找了個課程，準備先聽一下這個課程，做爲入門吧。

課程的名字是：斯坦福大學公開課：iPad和iPhone應用開發(iOS5)

鏈接：http://open.163.com/special/opencourse/ipadandiphoneapplication.html

今天聽了第一課，大概講了如下的內容：

1. iOS overview

   iOS devided 4 layers: 

   1. core os: unix kernel and C API

   2. core service: object-oriented service API

   3. multimedia: multimedia is embed into the system design

   4. cocoa tough: user interface library, service library
      

2. MVC

   devide all your classes into 3 camps: 

   Model: what your application does

   Controller: how your model is presented in the UI

   View: Controller's minions, the controllers uses it to present the model on screen

   The model-view communication:

   1. the controller can access the model

   2. the model never communicate to the controller, it defines notification to broadcast things interesting to controller

   1. 
      

        The controller-view communication:

1. 
   

   1. controllers uses an outlet to talk to view

   2. view can't communicate to the controller via:

   1. target/action mechanism

   2. delegate(should/will/did)

   3. controller works as data source, delegates for model

      
      

   1. 
      

        Controllers can talk to many models and other controllers, but view can only be controlled by only one controller,and never communicate to models.

    3. Objective-C

        a strict super-set of C

        header file as .h, source file as .m

        #import works like #include, smarter (good!)

        @interface and @end in header file

        @implementation and @end in source file

        public versus private is just it is in header or source file (good!)

            can have @interface in source file, be private

         arguments are interspersed in the name of the methods (great!)

             (void)orbitPlanet:(Planet * aPlanet):atAltitude:(double* )km;

        @property (nonatomic) double topSpeed;

        @synthesize topSpeed = _topSpeed;

         call a method

            [self topSpeed] => self.topSpeed

             [ self. nearestWormhole travelToPlanet:aPlanet atSpeed:speed]