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Quick Tip

See all parameter permutations in code completion in Xcode 15

Xcode 15 beta comes with some great improvements to code completion. One of my favorite is the ability to view all possible permutations of function parameters.

Screenshot of Xcode showing all the possible permutations for the SwiftUI frame modifier in code completion window

If a function contains more than one default parameter, we can see all the possible cases by pressing the right arrow keyboard key. This lets us choose the right permutation without any extra typing.

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Integrating SwiftUI into UIKit Apps

Integrating SwiftUI intoUIKit Apps


A detailed guide on gradually adopting SwiftUI in UIKit projects.

  • Discover various ways to add SwiftUI views to existing UIKit projects
  • Use Xcode previews when designing and building UI
  • Update your UIKit apps with new features such as Swift Charts and Lock Screen widgets
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