CoordinateSpaceProtocol

protocol · iOS 17.0+ · SDK 27.1

protocol CoordinateSpaceProtocol

A frame of reference within the layout system. All geometric properties of a view, including size, position, and transform, are defined within the local coordinate space of the view's parent. These values can be converted into other coordinate spaces by passing types conforming to this protocol into functions such as `GeometryProxy.frame(in:)`. For example, a named coordinate space allows you to convert the frame of a view into the local coordinate space of an ancestor view by defining a named coordinate space using the `coordinateSpace(_:)` modifier, then passing that same named coordinate space into the `frame(in:)` function. VStack { GeometryReader { geometryProxy in let distanceFromTop = geometryProxy.frame(in: "container").origin.y Text("This view is \(distanceFromTop) points from the top of the VStack") } .padding() } .coordinateSpace(.named("container")) You don't typically create types conforming to this protocol yourself. Instead, use the system-provided `.global`, `.local`, and `.named(_:)` implementations.

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