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Mac App For Programming Languages

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This document is the starting point for learning how to create Mac apps. It contains fundamental information about the OS X environment and how your apps interact with that environment. It also contains important information about the architecture of Mac apps and tips for designing key parts of your app.

At a Glance

Cocoa is the application environment that unlocks the full power of OS X. Cocoa provides APIs, libraries, and runtimes that help you create fast, exciting apps that automatically inherit the beautiful look and feel of OS X, as well as standard behaviors users expect.

Cocoa Helps You Create Great Apps for OS X

You write apps for OS X using Cocoa, which provides a significant amount of infrastructure for your program. Fundamental design patterns are used throughout Cocoa to enable your app to interface seamlessly with subsystem frameworks, and core application objects provide key behaviors to support simplicity and extensibility in app architecture. Key parts of the Cocoa environment are designed particularly to support ease of use, one of the most important aspects of successful Mac apps. Many apps should adopt iCloud to provide a more coherent user experience by eliminating the need to synchronize data explicitly between devices.

Relevant Chapters:The Mac Application Environment, The Core App Design, and Integrating iCloud Support Into Your App

Common Behaviors Make Apps Complete

During the design phase of creating your app, you need to think about how to implement certain features that users expect in well-formed Mac apps. Integrating these features into your app architecture can have an impact on the user experience: accessibility, preferences, Spotlight, services, resolution independence, fast user switching, and the Dock. Enabling your app to assume full-screen mode, taking over the entire screen, provides users with a more immersive, cinematic experience and enables them to concentrate fully on their content without distractions.

Relevant Chapters:Supporting Common App Behaviors and Implementing the Full-Screen Experience

Get It Right: Meet System and App Store Requirements

Configuring your app properly is an important part of the development process. Mac apps use a structured directory called a bundle to manage their code and resource files. And although most of the files are custom and exist to support your app, some are required by the system or the App Store and must be configured properly. The application bundle also contains the resources you need to provide to internationalize your app to support multiple languages.

Finish Your App with Performance Tuning

As you develop your app and your project code stabilizes, you can begin performance tuning. Of course, you want your app to launch and respond to the user’s commands as quickly as possible. A responsive app fits easily into the user’s workflow and gives an impression of being well crafted. You can improve the performance of your app by speeding up launch time and decreasing your app’s code footprint.

Relevant Chapter:Tuning for Performance and Responsiveness

How to Use This Document

This guide introduces you to the most important technologies that go into writing an app. In this guide you will see the whole landscape of what's needed to write one. That is, this guide shows you all the 'pieces' you need and how they fit together. There are important aspects of app design that this guide does not cover, such as user interface design. However, this guide includes many links to other documents that provide details about the technologies it introduces, as well as links to tutorials that provide a hands-on approach.

In addition, this guide emphasizes certain technologies introduced in OS X v10.7, which provide essential capabilities that set your app apart from older ones and give it remarkable ease of use, bringing some of the best features from iOS to OS X.

Mac App For Programming Languages

Build apps. Build your future.

Whether you’re just entering the workforce or you‘re an experienced developer or entrepreneur, take advantage of free resources to gain skills that help you succeed in

At a Glance

Cocoa Helps You Create Great Apps for OS X

Common Behaviors Make Apps Complete

Get It Right: Meet System and App Store Requirements

Finish Your App with Performance Tuning

How to Use This Document

See Also

Submit your next generation
app to the App Store.

App Store

Explore the features and comprehensive benefits of distributing your apps on the App Store for iPhone, iPad, Mac, Apple TV, and Apple Watch.

Introducing Xcode 12

Universal App Quick Start Program

App Clips

Provide a new way to quickly access and experience what your app has to offer. An app clip is a small part of your app that lets users start and finish an experience in seconds, even before downloading your app.

Widgets

Now it’s even easier to build and make widgets available across iOS, iPadOS, and macOS with the new WidgetKit framework, widget API for SwiftUI, widget gallery, and Smart Stacks.

macOS Big Sur

A whole new level of power and beauty.

watchOS 7

Develop even more powerful and personal apps for Apple Watch.

iOS 14

Take advantage of the latest features in the world’s most advanced mobile operating system.

iPadOS 14

New features and enhancements in iPadOS 14 empower you to create amazing experiences.

Apple Platforms

Mac App For Programming Languages

Build apps. Build your future.

Whether you’re just entering the workforce or you‘re an experienced developer or entrepreneur, take advantage of free resources to gain skills that help you succeed in

At a Glance

Cocoa Helps You Create Great Apps for OS X

Common Behaviors Make Apps Complete

Get It Right: Meet System and App Store Requirements

Finish Your App with Performance Tuning

How to Use This Document

See Also

Submit your next generationapp to the App Store.

App Store

Explore the features and comprehensive benefits of distributing your apps on the App Store for iPhone, iPad, Mac, Apple TV, and Apple Watch.

Introducing Xcode 12

Universal App Quick Start Program

App Clips

Provide a new way to quickly access and experience what your app has to offer. An app clip is a small part of your app that lets users start and finish an experience in seconds, even before downloading your app.

Widgets

Now it’s even easier to build and make widgets available across iOS, iPadOS, and macOS with the new WidgetKit framework, widget API for SwiftUI, widget gallery, and Smart Stacks.

macOS Big Sur

A whole new level of power and beauty.

watchOS 7

Develop even more powerful and personal apps for Apple Watch.

iOS 14

Take advantage of the latest features in the world’s most advanced mobile operating system.

iPadOS 14

New features and enhancements in iPadOS 14 empower you to create amazing experiences.

Apple Platforms

Mac App For Programming Languages

Build apps. Build your future.

Whether you’re just entering the workforce or you‘re an experienced developer or entrepreneur, take advantage of free resources to gain skills that help you succeed in

Submit your next generation
app to the App Store.