Swift: How to use SF Symbols

When designing a TabView you have the option to add an icon for each tab using a system image, using the systemImage parameter to Label:

TabView {
    Text("First")
        .tabItem {
            Label("First", systemImage: "tray")
        }
}

In this case we use tray.

How do you find out which other icons you can use?

Apple created a free macOS app called SF Symbols. Download it from the SF Symbols page, install it, and use it to browse or search the thousands of available symbols.

Click a symbol to copy its name, then pass that name to systemImage.

Keep your deployment target in mind. Apple adds symbols and rendering features with new system releases, so a symbol shown by the latest app might not exist on an older version of iOS or macOS.