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The application's name is an apparent reference to Xcode's earlier Playgrounds feature, introduced in 2014. [citation needed] Along with iOS 10, the app was officially released on September 13, 2016. [16] Apple also published a curriculum guide, recommending the iPad app for middle school students and up. [7]
It runs on both Mac OS X Lion (10.7) and OS X Mountain Lion (10.8) and is the first version of Xcode to contain the OS X 10.8 "Mountain Lion" SDK. Xcode 4.4 includes support for automatic synthesizing of declared properties, new Objective-C features such as literal syntax and subscripting, improved localization, and more. [40]
The iOS SDK, combined with Xcode, helps developers write iOS applications using officially supported programming languages, including Swift and Objective-C. [ 10 ] An .ipa (iOS App Store Package) file is an iOS application archive file which stores an iOS app.
External editors must do all the image manipulation, then the results may be imported into the converter to create the finished icon. As of Xcode 8.2, Icon Composer is no longer available in Additional Tools, as it cannot create high resolution icons. Apple recommends using the command-line utility iconutil, which ships with macOS. [1]
The Mac developer program is a way for developers of Apple's macOS operating system to distribute their apps through the Mac App Store.It costs US$99/year. Unlike iOS, developers are not required to sign up for the program in order to distribute their applications.
Originally the software was called SOS Interface, and was created by Jean-Marie Hullot whilst he was a researcher at Inria at Rocquencourt near Paris. He was allowed to retain ownership of the software upon resigning from Inria, and spent a year working it into a fully-featured product, now named Interface Builder [1] and distributed for Macintosh by ExperTelligence in the USA in 1986. [2]
Property list files use the filename extension.plist, and thus are often referred to as p-list files. Property list files are often used to store a user's settings. They are also used to store information about bundles and applications, a task served by the resource fork in the old Mac OS.
To aid development of such programs, and the re-use of extant code, Xcode 6 and higher offers a semi-automated system that builds and maintains a bridging header to expose Objective-C code to Swift. This takes the form of an additional header file that simply defines or imports all of the Objective-C symbols that are needed by the project's ...