I am learning Swift/SwiftUI and working on my first substantial (for me) macOS application. Since I was following current tutorials and WWDC videos, I ended up using some features that are only available in OSX 12. Is there a way to maintain one code base that can be compiled for different target versions? I think I'm looking for something like C/C++'s #ifdef that would include different pieces of code depending on the target OS version.
Mark
Yes there is.
You have @available for a func:
@available(macOS 11.0, *)
func …
and for a piece of code:
if #available(macOS 11, *) {
print("This code only runs on macOS 11 and up")
} else {
print("This code only runs on macOS 10 and lower")
}
get much details here for instance: h t t p s : / / w w w.avanderlee.com/swift/available-deprecated-renamed/
Sorry about the poorly formatted comment. I guess you can't include code blocks in comments, and I can't find a way to delete my comment, so here it is again, in a more readable format.
Thank you for your speedy reply, but I must still be missing something. I created a simple macOS app and modified the ContenView struct.
struct ContentView: View {
var text: String {
if #available(macOS 12, *) {
return "Hello, world! OSX12"
} else {
return "Hello, world! OSX11"
}
}
var body: some View {
Text(text)
.padding()
}
}
`
But no matter how I set the macOS Deployment Target in the project or deployment target in the target, it always displays Hello, world OSX 12 when I run it.
Thanks