Leopard is the sixth major version of Mac OS X and it will be the most advanced and powerful version yet. For users, it is full of new features and elegant user experience improvements that will make it a joy to use. For developers, things get even better. Leopard contains a cornucopia of cutting-edge new frameworks, streamlined developer tools, new application technologies, and strong system-level foundations. No matter what kind of developer you are, there’s something new in the system that will feel tailor made just for you.

An Operating System Designed for Innovation

The full-scale dedicated store to download all the applications for your Macintosh system. This was released along with the Mac OS X leopard to get the response from the end-user about its practicality and when all positive reviews turned in, apple decided to go with the MacApp store with a tweak to the software frame and also improving the user interface between the user. Mac OS X Snow Leopard Server by Apple. Publication date 2009-08-23 Topics macosx, osx, macos Collection opensourcemedia Language English. Searching through my old.

The goal in adding so many new developer technologies into Leopard is to make it easier for you to create compelling, rich, and amazing new applications. Once upon a time, a great application was defined by the functionality it provided. Then, over time, the ease of use of an application became important—it wasn’t enough just to get the job done, it had to be easy to do so. In the last few years, the bar has been raised again. Now, a truly great application isn’t just defined by its features and how easy it is to use them, it’s also defined by how enjoyable it is to use.

By taking advantage of the technologies in Leopard, you can add that extra level of detail that makes your applications not just useful, but highly desirable. You can give them that “wow” factor that will bring your customers back to your application again and again.

You can begin Leopard development with the Leopard Early Start Kit. Included with ADC Premier and Select membership, the Kit provides advance access to development resources that help you to innovate using Leopard technologies, including Leopard prerelease software, documentation and code samples on the Leopard Dev Center, and WWDC 2006 Leopard session videos through ADC on iTunes.

Getting to Know the Leopard Technologies

To help you get acquainted with what’s coming in Leopard, ADC is presenting a series of articles on Leopard technologies over the next several months. These articles will take a deep look at Xcode, Objective-C 2.0, Core Animation, Image Kit, Instruments, and much more.

We’re starting the series with a broad overview of more than two dozen new and enhanced technologies, tools and APIs that are coming in Leopard.

Developer Tools

As a developer, the first thing you should do when you install Leopard is take a look at the new developer tools. You’re in for a real treat. We’ve put a lot of time and effort into improving Xcode and Interface Builder so that it’s easier to create and maintain large projects. We didn’t stop there, however. In Leopard, we’re introducing the entirely new Instruments and Dashcode tools. Instruments will let you take a look at how your application runs like you’ve never been able to before. Dashcode lets you build Dashboard widgets in no time flat.

Xcode 3.0

Xcode is Apple’s Integrated Development Environment (IDE) for creating any code for Mac OS X. It’s the centerpiece application of your workday. Because it’s such an important part of the development process, we’ve spent a lot of time making the latest version of Xcode streamlined and faster, in order to make you more productive. The first place you’ll notice Xcode’s improvements is in the text editor. Code folding, scope highlighting, and iChat-like message bubbles that clearly mark build warnings and errors as well as breakpoints, are some of the key editing enhancements.

To help you access documentation while you work, the new Research Assistant gives you a heads-up display of relevant information about symbols in your code in a convenient, small panel. If you need more information, you can simply click for more detail and the full documentation window will open. And, to help you experiment with your code, Project Snapshot lets you record the state of your project and snap back to that state at any point in the future. This lets you quickly try out an idea without having to check things back into your projects source code repository.

Interface Builder 3.0

Interface Builder is the intuitive, easy-to-use tool for creating and editing user interface resources files (nib files). These files represent a set of interface objects and their relationships, as well as their connections to your application’s logic. In Leopard, Interface Builder has been thoroughly modernized and updated, both to support the new interface technologies in Leopard as well as to make the applications you develop easier than ever to build.

In addition to laying out your user interface, Interface Builder now lets you add impressive Core Animation-based behaviors to your application, such as the iChat sliding list view or Keynote-style transitions, in a matter of minutes. And it even has features that improve the ability to see differences between versions of your interface. It also comes with a new Interface Builder Kit API for plug-in developers.

Instruments

Instruments is a brand-new, timeline-based performance visualization tool that gives you the ability to see how your application works like you’ve never been able to do before. It lets you watch CPU, disk I/O, memory usage, garbage collection, events, and more in the form of graphs tied to time.

For example, you can track UI events in real-time and see how they affect I/O activity and CPU load at the same time. And, once the data has been collected, you can scan back and forth through your application’s run and see exactly what occurred, and when.

Download gdc calculator for macshedprogram. Instruments builds on top of the open source DTrace utility. DTrace is a comprehensive command-line monitoring utility that can probe almost any aspect of system performance. It comes with a large set of tools that cover most general aspects of system performance, including both kernel and user code, with near-zero overhead. If there is an aspect of the system that you want to track that isn’t already supported, you can create your own tool using the D programming language.

Dashcode

Dashcode is Apple’s new Dashboard widget development environment. It offers a built-in debugger and all the text editing features of a professional IDE. You can set and view breakpoints as well as track your widget’s execution through its JavaScript source code.

Dashcode is geared for all levels of widget developers. You can start out with a prebuilt template and modify it to your needs, or get deep into the JavaScript, CSS, and HTML that defines all the aspects of how a widget looks and works.

Application Technologies

Leopard brings a multitude of improvements and additions to the Cocoa application framework set. The most visible of these is the new Core Animation framework which makes creating compelling interfaces much easier. Not as obvious, but no less important is the addition of garbage collection to Objective-C, new graphical controls, and 64-bit capabilities up the entire Cocoa stack from the BSD core system up to graphics, sound and networking. In addition, Leopard brings a factor of ten increase in the performance of Core Data.

Core Animation

Core Animation is a Cocoa framework for creating animated, composited, and dynamic user interfaces with a simple and approachable programming model. The fluid animations it creates are enabled by Quartz, OpenGL, and Core Image, yet it exposes a familiar NSView-style hierarchy that mirrors that of the Application Kit view architecture. Many of the new user-level features in Leopard, such as Spaces and Time Machine, utilize Core Animation to perform their user interface transitions.

Using Core Animation, your application can effortlessly provide a cinematic user experience to your users. You’ll be able to smoothly move user interface elements around the screen, fade them in and out, and add effects with just a few lines of code. In addition to Quartz and Core Image, you can also leverage Core Video and Quartz Composer to achieve a wide range of visual results. You can direct Core Animation from either code or by using Interface Builder.

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