Yep, I just took a simple app and opened up the ipa. 90% of it is the “Frameworks” directory containing the Swift frameworks libSwiftCore.dylib, libSwiftDarwin.dylib, etc.
On Wed, Jun 15, 2016 at 3:43 PM Seth Friedman via swift-users < [email protected]> wrote: > Hi all, > > I've seen a ton of blog posts written about all of the cool and exciting > things about Swift, but I haven't see anything really about the downsides > (besides the occasional post about pain points with interoperability). > What's of biggest concern to me when considering migrating my company's app > from Objective-C to Swift is binary size. Swift binary size seems to be > several times larger than Objective-C, and I'm curious what data there is > in the community to support this suspicion. > > For some quick data points, I created a single view controller project in > Obj-C and one in Swift, turned off bitcode to get a better idea of what the > binary size on device would be, and archived them. I did this in Xcode 8 > Beta 1 using Swift 3 so that I'd make sure to get any binary size > improvements in Swift 3. > > The Obj-C IPA file was 639 KB. The Swift IPA file was *23.6 MB*. I know > that the Swift runtime libs are about 4.5 MB, but subtracting that, the > Swift IPA file is still *30x bigger than the Obj-C equivalent*. Next, I > tried adding a simple table view controller, a Person model with a first > and last name, and a data source that puts the first and last names in the > table view in an attempt to make a functioning app. However, the binary > sizes were about the same (the Obj-C one actually decreased to 635 KB). > > When we're talking about binary sizes this small, it's not a big deal, but > my company's app is currently 81 MB, about 35 MB of which is code, and the > rest is assets. If the code part of the binary size increases by orders of > magnitude like this, we'll go way over the 100 MB cellular limit that Apple > has set. This is also a really bad experience for customers in emerging > markets like China and India that have poor connections. > > Can anyone confirm or deny that Swift binary size is orders of magnitude > larger than Objective-C? I'm looking for the specific increase we'll see to > take to my management in order to make a justification for whether it's > worth it for our customers. > > Thanks! > > Seth Friedman > > > _______________________________________________ > swift-users mailing list > [email protected] > https://lists.swift.org/mailman/listinfo/swift-users > -- -Saagar Jha
_______________________________________________ swift-users mailing list [email protected] https://lists.swift.org/mailman/listinfo/swift-users
