#alignmentGuide

Sets an explicit alignment guide for one of a view's alignments, letting you fine-tune how it lines up with its siblings in a stack.

#alignmentGuide?: { alignment, value, offset? }

• alignment — which guide to set: a HorizontalAlignment ("leading", "center", "trailing") or a VerticalAlignment ("top", "center", "bottom", "firstTextBaseline", "lastTextBaseline").
• value — either:
  • a number — a constant guide, or
  • a keyword resolved against the view's own dimensions:
    • "width" / "height" — the view's measured size
    • "leading" / "trailing" / "top" / "bottom" / "center" — the view's edge/center guides
    • "firstTextBaseline" / "lastTextBaseline" — the view's text baselines
• offset? — a number added on top of the resolved value.

Note: Only these declarative forms are supported. SwiftUI's arbitrary computeValue closure (which runs during layout) cannot be bridged to scripts, so it is not available.

#Example

// Nudge this view's leading guide 20pt inward.
<Text alignmentGuide={{ alignment: "leading", value: 20 }}>Indented</Text>

// Align this view's leading edge to its own trailing edge (shift left by its width).
<Text alignmentGuide={{ alignment: "leading", value: "trailing" }}>Shifted</Text>

// Use the view's center as its top guide, plus a small offset.
<Image
  systemName="star"
  alignmentGuide={{ alignment: "top", value: "center", offset: 4 }}
/>