Two years ago I measured Apple’s use of Swift in iOS 10.1 and last year I counted how many applications were using Swift in iOS 11.1.
This year I’m analyzing iOS 12, released by Apple this month.
Methodology The methodology and tools used for this article have been detailed in the previous posts. If you are interested, please refer to Apple’s use of Swift in iOS 10.1 and macOS 10.
A year ago I analyzed how many built-in apps in iOS 10.1 and macOS 10.12 were using Swift: Apple’s use of Swift in iOS 10.1 and macOS 10.12.
How many built-in apps are using Swift in iOS 11.1 and macOS 10.13.1? Let’s find it out!
Tool to detect binaries using Swift Last year I explained how to write a script that loops through all the files of a folder and print the paths of binaries using Swift.
This post follows up the Analysis of the Facebook.app for iOS [v. 87.0].
The version 88.0 of the Facebook.app has now been released:
As you can see from the smaller download size, the duplicated resources have been removed. This is confirmed by looking at the app content using GrandPerspective:
Only some really small resources escaped the cleanup. The ‘FBFacecastTipJarResources’ resources are indeed still duplicated. Example:
6 months ago I analyzed the version 66.0 of the Facebook.app for iOS: https://blog.timac.org/2016/1018-analysis-of-the-facebook-app-for-ios
The version 66.0 was a 165 MB app on an iPad Air 2 (64-bit). It was a monolithic app with its main binary being more than 100 MB.
The version 87.0 is now available: 253 MB on the same iPad Air 2 with only 64-bit code. In just 6 months, the Facebook.app size grew by 88 MB!
Swift has been announced at the WWDC 2014, more than 2 years ago. Most of the sample code projects from Apple are now written in Swift. But does Apple use Swift in iOS 10.1 and macOS 10.12.1?
How to detect if a binary is using Swift? A naïve approach would be to check if an app contains the Swift libraries in its Frameworks folder: libswiftCore.dylib, libswiftFoundation.dylib, …
Here is the content of the Frameworks folder of the MRT.
Did you ever wonder why the Facebook.app for iOS is such a big download? This post tries to give some answers. The version 66.0 (released on 7 October 2016) was analyzed on an iPad Air 2 (64-bit).
Here is what you see when downloading Facebook on an iPad Air 2:
App content A scan of the content of the Facebook app using GrandPerspective gives already a good overview: