I have a few blog posts about optimising Swift on my blog and I gave a short talk back in October. However if you are comparing with C code it will usually be the case that Swift will be slower at the moment. If that is the basis Swift (when optimised and using structs and final classes) will come out quite well. I would say that they were C and that to meaningfully talk about Objective-C performance it should be code based on Objective-C message sending and probably NSArrays rather than raw C arrays. You can write C functions in Objective-C code and they will result in code as fast as C. When comparing the Objective-C it is also worth considering what we mean by Objective-C. Even where performance is critical the amount of code that needs to be heavily optimised will tend to be small and you could switch to a faster language (e.g. More time will be spent in API calls and those will not be affected by the language used to call them. Most of the code you write is not that performance critical provided you can move slow operations off the main UI queue. Objective-C: Developed in the early 1980s, Objective-C was the primary programming language for all Apple products for decades. Swift is the newer language, and there is a chance that Obj-C will start being deprecated (I really hope not). A little work to optimise the most deeply nested loops was usually enough to quickly get it somewhere close to C performance. objective-c ipad swift in-app-purchase Share Improve this question Follow asked at 15:40 Melanie 3,011 6 36 56 2 Both Swift and Objective-C have the exact same set of libraries, so that shouldnt factor into your decision. Accessing non-final instance methods especially was very slow and Debug builds were horrifically slow (I have several cases of 100x slower than release builds). I haven't had time to fully evaluate the Swift 1.2 Beta but even before most code could be made reasonably fast but it was also very easy to make it very slow. You can write slow code in any language and Swift is no exception. Swift is also developed from Apple to appeal to new programmers because it is similar to languages such as Ruby and Python than it is Objective-C. There will be performance differences, as the two languages aren't identical after all, but don't expect significant differences. Even though the two languages are quit different, both target the same Cocoa and Cocoa Touch APIs, iOS and OS X a, both are statically typed languages and both use the same LLVM compiler, so they are not that different after all. Swift is unlikely to result in applications that run much faster than applications developed in Objective-C. I developed a lot of apps in Objective-C that are in apple store, and now several in Swift and so far users can not tell the difference if one is much faster than the other. Swift is claimed by Apple to be faster than Objective-C, and as you said it is faster in those sorting algorithms, but for the usage of iOS development, a simple user would not recognize the difference between an app developed in Swift or Objective-C. Table of Content With the release of the first iPhone in 2007, Apple declared Objective C as the official programming language for iOS (iPhone Operating System) app development.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |