ContainerGeometry

This package may be helpful for you if you need to get geometry information for multiple SwiftUI views, e.g. if you want to track views in a grid or in other containers.

Usage

If you have a container that contains multiple views, you apply container modifier on this container. Like this:

VStack{
    ...
}.container()

This will make ContainerGeometry Environment Object available in the view subhierarchy, where you may get it like this:

@EnvironmentObject var geometryData: ContainerGeometry

But for the geometry to be readable you set it on each subview:

SomeViewInsideYourContainer()
    .subviewGeometry(id: someHashableID)

Then you can read the geometry information of this view from the Environment Object like this:

let frameRect = geometryData[someHashableID]

Or get the geometry of the container:

let containerFrameRect = geometryData.containerFrame

Also, you may get all the IDs of the views that contain a specific point like this:

let idsOfTheViewsContainingYourCGPoint = geometryData.frames(containing: yourCGPoint)

You may also set a callback for catching all the geometry changes:

geometryData.onGeometryUpdate = { geometryData in
    //use updated geometryData
}

Feel free to contact me with any questions or suggestions!