flâneur — a map of the web's best reading

Structural identity in SwiftUI | Swift with Majid

swiftwithmajid.com · 714 words · saved by 1 readers

Structural identity is the type of identity that SwiftUI uses to understand your views without an explicit identifier by using your layout description. This week we will learn how to improve performance and eliminate unwanted animations by using inert view modifiers in SwiftUI. Structural identity is how SwiftUI understands your view hierarchy and recognizes particular views without specific identifiers. Let’s look at the quick examples that demonstrate the logic behind the structural identity. As you can see in the example above, SwiftUI creates an instance of _ConditionalContent view that uses some condition to present one or another view. In our case, _ConditionalContent view uses if let binding to decide which views it has to show. SwiftUI destroys and creates the views whenever the condition changes. This process deallocates the destroyed view’s state and uses animation to remove the destroyed view. In the current example, we use the if statement to enable or disable the view cond

Structural identity in SwiftUI 09 Dec 2021 Structural identity is the type of identity that SwiftUI uses to understand your views without an explicit identifier by using your layout description. This week we will learn how to improve performance and eliminate unwanted animations by using inert view modifiers in SwiftUI. Your Apple Watch measures your heart rate every 4 minutes during the day. With CardioBot , you can easily understand the data captured by the Apple Watch so you can improve your lifestyle and discover notable patterns. Try now Structural identity Structural identity is how Swif

Explore this link on the map →

related reading