#Sample mac os framework code
What about building your own libraries, aggregating and compartmentalizing code with common and well-defined functionality, so you can conveniently reuse your own code? I know I’m verging on the pedantic, but how many of us actually take the time to divide and conquer our own code? Some of you have used other people’s work, incorporating third-party code using dependency managers like Carthage or CocoaPods. Without those frameworks, you wouldn’t have UIButton or UITableViewController - you wouldn’t even have basic data types like Int, Double, or Decimal. Can you imagine having to encode a UIButton or something much more complex like a UITableViewController every time you created an app? When you create a new iOS project using Xcode’s Single View App template, you’re automatically given access to frameworks like UIKit and Foundation. You already use frameworksĪs iOS developers, we all heavily rely on Apple’s built-in frameworks. Public frameworks are intended for use by other developers and usually include headers and documentation defining the framework’s public interface. Private frameworks are appropriate for code modules you want to use in your own applications but do not want other developers to use. In addition to using the system frameworks, you can create your own frameworks and use them privately for your own applications or make them publicly available to other developers. This sharing of resources reduces the memory footprint of the system and helps improve performance. Only one copy of a framework’s read-only resources reside physically in-memory at any given time, regardless of how many processes are using those resources.This makes it possible to be backward compatible with older programs. Multiple versions of a framework can be included in the same bundle.For example, a framework can include any relevant header files and documentation. Frameworks can include a wider variety of resource types than libraries.This grouping makes it easier to install, uninstall, and locate those resources. Frameworks group related, but separate, resources together.Frameworks offer the following advantages over static-linked libraries and other types of dynamic shared libraries:
![sample mac os framework sample mac os framework](https://i.stack.imgur.com/P4AJd.gif)
For example, the Application Kit and Foundation frameworks provide the programmatic interfaces for the Cocoa classes and methods.
![sample mac os framework sample mac os framework](https://docs.docker.com/desktop/mac/images/menu/prefs-general.png)
This makes it easier for developers to browse the framework contents and view any included documentation and header files.įrameworks serve the same purpose as static and dynamic shared libraries, that is, they provide a library of routines that can be called by an application to perform a specific task. A framework bundle is a standard directory that the user can navigate. However, unlike most bundles, a framework bundle does not appear in the Finder as an opaque file. The system loads them into memory as needed and shares the one copy of the resource among all applications whenever possible.Ī framework is also a bundle and its contents can be accessed using Core Foundation Bundle Services or the Cocoa NSBundle class. Multiple applications can use all of these resources simultaneously. A framework is a hierarchical directory that encapsulates shared resources, such as a dynamic shared library, nib files, image files, localized strings, header files, and reference documentation in a single package.