Xcode是苹果公司向开发人员提供的集成开发环境，用于开发Mac OS X和iOS的应用程序。

Xcode 6 引入了设计和构建软件的崭新方式。Swift 是一种面向 Cocoa 和 Cocoa Touch 的创新编程语言，与 Xcode 工具相结合后，可以让编程变得轻松愉悦。这一生动体验渗透到了 Xcode 6 的方方面面。Interface Builder 的实时渲染功能，能将你手动编写的 UI 代码显示在设计画布中，并即时反映你在代码中输入的变化。全新的视图调试器将所有 UI 图层迸发为 3D 视觉化呈现，让你轻松了解界面的构成方式，识别重叠或截断的视图。

Xcode 6.1 for MacOSX | 2.56 GB

What's New in Version 6.1

Includes SDKs for OS X 10.10 Yosemite, OS X 10.9 Mavericks, and iOS 8.1.

Includes Swift support for both iOS and OS X projects.

• Playgrounds for OS X Yosemite support AppKit and other Mac-specific frameworks

• Swift REPL built into the Xcode debugger can inspect and manipulate your running app

• Command line 'swift' tool runs your Swift scripts from the shell

• Storyboards for OS X can design the flow of your complete Mac UI on a single canvas

Xcode provides everything developers need to create great applications for Mac, iPhone, and iPad. Xcode brings user interface design, coding, testing, and debugging all into a unified workflow. The Xcode IDE combined with the Cocoa and Cocoa Touch frameworks, and the Swift programming language make developing apps easier and more fun than ever before.

Xcode includes the Xcode IDE, Swift and Objective-C compilers, Instruments analysis tool, iOS Simulator, the latest OS X and iOS SDKs, and hundreds of powerful features:

Innovative tools help you create great apps

• Swift is a revolutionary new programming language that is safe, fast, and modern

• Playgrounds are a fun place to experiment with Swift code, displaying instant results

• Interface Builder is a graphical UI design canvas with a live preview of your app

• View debugging shows a 3D stack of all your app's UI view layers at runtime

• Assistant editors show content related to your primary task

• Live Issues display errors as you type, and Fix-it can correct the mistakes for you

Swift is an all new programming language for Cocoa and Cocoa Touch

• Safe by design, Swift syntax and features prevent entire categories of bugs

• Fast code execution and compile time are powered by the proven LLVM compiler

• Modern language features are inspired by leading research, including:

- Closures unified with function pointers

- Tuples and multiple return values

- Structs as value types that support methods, extensions, protocols

- Functional programming patterns including map and filter

Interface Builder makes it easy to design your interface without code

• Storyboards let you arrange the complete flow of screens within your app

• See your custom controls rendered live within the design canvas

• Preview your interface in different screen sizes, orientations, or languages

• Create connections from your GUI design directly to the related source code

Professional editor and debugger keep your code front and center

• Hit a few keys and Open Quickly will instantly open any file within your project

• Message bubbles show errors, warnings, and other issues right beside your code

• Data tips show a variable's value by hovering your mouse over the code

• Quick Look variables while debugging to see the actual color, bezier path, image, and more

Apple LLVM technology finds and fixes bugs for you

• Analyzer travels countless code paths looking for logical errors before they become bugs

• Live Issues underlines coding mistakes as you type with no need to build first

• Fix-it can confidently correct mistakes for you with just a keystroke

Test driven development is built right in

• Use the Test Navigator to add, edit, or run tests with just a click

• Test Assistant makes it easy to edit your code and related tests, side-by-side

• Create continuous integration bots using OS X Server to automatically build and test your apps

• Monitor performance test data using OS X Server to immediately spot regressions

Instruments makes performance analysis beautiful

• Compare CPU, disk, memory, and OpenGL performance as graphical tracks over time

• Identify performance bottlenecks, then dive deep into the code to uncover the cause

• Monitor your app directly, or sample the entire system, with very little overhead

To test or deploy applications on an iOS device you must be a member of Apple's iOS Developer Program. To submit your Mac or iOS apps to the App Store you must be a member of the Mac or iOS Developer Program. Continuous integration features require a current version of OS X Server. Some features may require Internet access.