init(_:)

Declaration

init(_ id: any AlignmentID.Type)

Parameters

• id:

  The type of an identifier that uniquely identifies a vertical alignment.

Discussion

Use this initializer to create a custom vertical alignment. Define an AlignmentID type, and then use that type to create a new static property on VerticalAlignment:

private struct FirstThirdAlignment: AlignmentID {
    static func defaultValue(in context: ViewDimensions) -> CGFloat {
        context.height / 3
    }
}

extension VerticalAlignment {
    static let firstThird = VerticalAlignment(FirstThirdAlignment.self)
}

Every vertical alignment instance that you create needs a unique identifier. For more information, see AlignmentID.

See Also

Creating a custom alignment

• combineExplicit(_:)