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最新推荐文章于 2016-11-08 16:56:17 发布
原创 最新推荐文章于 2016-11-08 16:56:17 发布 · 234 阅读 · 0 ·
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#ios #AppKit

本文介绍了AppKit框架，它是OS X应用程序开发的重要组成部分。该框架负责构建和管理用户界面，响应用户交互和系统事件，并处理文档、文本和图像的访问与操作。
App Frameworks之AppKit

什么是Appkit，相当于android sdk，就是开发包。

官方的定义如下：

Construct and manage your app’s user interface for OS X. Respond to user interactions and system events, enable accessibility, and work with documents, text, and images.

什么用户界面，用户交互，系统事件，获取文档、文本、图片访问和操作，这些都是由AppKit负责构建和管理的。
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今天讲Objective-C的方法声明，尽管在语法上，Objective-C的方法和其它高级语言有很大不同，但是，在概念上还是很类似的。 Method Declarations Indicate the Messages an Object Can Receive The examples so far have involved a class describing a typical mo
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今天讲self关键字，相当于java里的this。 Objects Can Send Messages to Themselves Whenever you’re writing a method implementation, you have access to an important hidden value, self. Conceptually, self is a way to
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今天讲Objective-C的@property Properties Control Access to an Object’s Values Objects often have properties intended for public access. If you define a class to represent a human being in a record-keep
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今天讲Objective-C的NSObject的两个方法，alloc和init。 Objects Are Created Dynamically As described earlier in this chapter, memory is allocated dynamically for an Objective-C object. The first step in creating
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今天开始讲Xcode，即ios的开发IDE，Xcode可以开发苹果的全部应用，从Mac到iPhone，到Watch、TV、iPad。 下面是Xcode的官方Overview： Xcode is Apple’s integrated development environment (IDE) that you use to build apps for Apple products in
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今天讲Objective-C可以使用C语言的结构体 C Structures Can Hold Primitive Values Some Cocoa and Cocoa Touch API use C structures to hold their values. As an example, it’s possible to ask a string object for the
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今天讲自定义Accessor方法，除了前面讲的Objective-C会自动生成getter、setter的Accessor方法，你也可以自定义getter、setter方法。 You Can Implement Custom Accessor Methods Properties don’t always have to be backed by their own instance vari
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本节开始，我们将讲Objective-C的面向接口编程，先看下本章的OverView。 Working with Protocols In the real world, people on official business are often required to follow strict procedures when dealing with certain situa
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今天开始新的一章，讲objective-c的类的扩展，通过继承现有类来扩展类的功能。先看下overview的介绍。 Customizing Existing Classes Objects should have clearly-defined tasks, such as modeling specific information, displaying visual conte
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今天讲如何运行起你上一节创建的工程，具体如下： After you create your project from a template, build and run your app to see what the app looks like on a device. For macOS apps, just click the Run button in the toolbar and
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今天分享如何把storyboard关联到view controller，即实现当view点击的时候，触发哪些事件。 具体如下： Every scene in a storyboard references a view controller class that contains the code that manipulates the view. If you have multiple
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今天把ios的布局收尾，然后开始写controller里的代码，以及语法错误检查，智能提示等。 具体如下： To view and edit existing connections for an object, select the object and open the Connections inspector. In the assistant editor, you can vie
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今天讲Objective的Accessor方法，即相当于java的getter和setter方法。 Use Accessor Methods to Get or Set Property Values You access or set an object’s properties via accessor methods: NSString *firstName = [somePers
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今天讲下Objective-C的类存在多个初始化的方法时，互相调用以及调用父类的初始化方法的情况。 The Designated Initializer is the Primary Initialization Method If an object declares one or more initialization methods, you should decide which
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今天继续分享使用Xcode编写ios代码，会涉及方法参数的切换、查找和替换、方法的文档等。 具体如下： When a method or function contains parameters or arguments, code completion includes a placeholder for each. To move to the next placeholder, pres
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今天讲使用Xcode Build and Run your app，你可以使用模拟器，也可以使用真机进行编译和运行。 Build and run your app Build and run your code to compile, link, and debug it. For products that can be run directly, if the product builds
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今天讲Objective-C的protocol的两个知识点，分别是带可选方法的协议，以及在运行时时检查可选方法是否实现。 Protocols Can Have Optional Methods By default, all methods declared in a protocol are required methods. This means that any class th
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