SwiftUI Academy · Lesson

GeometryReader Essentials

Measure available space to size content.

Measuring Space

Sometimes a view needs to know how big its slot is. GeometryReader hands you the exact size and position of the space it occupies. 📐

A GeometryReader is a view whose body is a closure receiving a proxy that describes the available space.

GeometryReader { proxy in
    Text("Hi")
}