How can I add platform specific code to the new cross-platform swiftUI app

Question

Created Jun ’20

Replies 2

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XCode 12 offers a new cross-platform swiftUI app - awesome
I would like to add platform specific code conditionals

e.g.

Code Block if(isMacos()) 
	doLoginMacos()
else
	doLoginIOS()

or

Code Block var body = macos ? ComplexNonMobileContentView() : Text("blabla mobile")

or

Code Block func onLoad {
	if(isMacos) addStatusbarItem
}

//note i dont even know if the new App Protocol has a onLoad ;) Happy to add fully separate AppDelegates and all too

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Answer 1

junkpile OP

Jun ’20

The platform check syntax for Swift is

Code Block Swift#if os(macOS)
...
#elseif os(iOS)
...
#endif

That gives coarse grained control. If you need to check availability of specific APIs or specific OS versions you’ll need to use @available.

1

Answer 2

tbraun1551 OP

Jun ’20

This is how you would do a check to see what platform the app is running on

Code Block #if os(iOS)  os(watchOS)  
		doLoginiOS()
#elseif os(macOS)
		DoLogInMacOS()
#else
		println("OMG, it's that mythical new Apple product!!!")
#endif

1