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IOS

iOS

appleiOS is Apple’s proprietary mobile operating system (OS) for its handheld devices, such as the iPhone, iPad and iPod Touch, Apple Watch, and Apple TV. It has the second largest installed base worldwide on smartphones, but the largest profits, due to aggressive price competition between Android-based manufacturers.

Because Apple makes both the hardware and the operating system for iPad, iPhone, and iPod touch, everything is designed to work together. Applications take full advantage of hardware features such as the dual-core processor, accelerated graphics, wireless antennas, and more.

iOS is derived from Mac OS X and is a Unix-like OS. There are four abstraction layers within iOS:

  • Coca Touch Layer: Contains key frameworks for building iOS apps. These frameworks define the appearance and basic infrastructure of your app
  • Media Layer: Provides the necessary technologies for graphics, audio and video
  • Core Services Layer: Provides services required by upper layers
  • Core OS Layer: Provides low-level features as well as frameworks for security and interaction with external hardware

Xcode is an integrated development environment (IDE) that contains a suite of software development tools developed by Apple. It includes tools for managing application projects, a graphical tool for creating the user interface and a debugging tool for analyzing runtime performance. It also includes an iOS simulator, which allows developers to test apps on a Mac.

The iOS 9 SDK (software development kit) includes new APIs and services that enable developers to create applications for Apple mobile devices. The SDK includes tools and interfaces for developing, installing, running and testing apps. Native apps can be written using the iOS system frameworks and the Objective-C programming language.

Swift is a new intuitive programming language created by Apple for building apps. It’s designed to give developers more freedom as it is easier to use and open source. The newly released Swift 2 has been refined from the ground up. It generates faster code across the board, both for release and debug builds.

The iOS development teams at delaPlex have developed iPhone and iPad mobile apps for a variety of vertical markets and industries, including Financial, Media, and Retail. All of our iOS apps are backed up by secure, scalable and reliable RESTful APIs. Our experience includes using both objective-c and Swift to craft usable, clean and beautiful custom applications.

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