If I want to use SF Symbols 3 in my swift project, do I have to export the symbols from the SF Symbols app and add them to my app's Asset Catalog, or is there a way for Xcode to automatically use those symbols without me having to add them to the Asset Catalog?
Are you writing a code for iOS?
SF Symbols are included in iOS, so you just need to check the availability of the symbol you want to use, and then specify the name of it in your app.
No need to add something to Asset Catalog.
Hey that is quite easy. All symbols from SFSymbols are already integrated in XCode. To do this you can enter either in your storyboard at the datei name of the image the name of the symbol or you can simply enter the symbol name with the argument (systemName: "test.fill") in the code, e.g.
imageView.image = UIImage(systemName: "timer")