Interface ILayoutController

Base interface to be implemented by components that control the layout of RectTransforms.

Namespace: UnityEngine.UI

Syntax

public interface ILayoutController

Remarks

If a component is driving its own RectTransform it should implement the interface [[ILayoutSelfController]]. If a component is driving the RectTransforms of its children, it should implement [[ILayoutGroup]].

The layout system will first invoke SetLayoutHorizontal and then SetLayoutVertical.

In the SetLayoutHorizontal call it is valid to call LayoutUtility.GetMinWidth, LayoutUtility.GetPreferredWidth, and LayoutUtility.GetFlexibleWidth on the RectTransform of itself or any of its children. In the SetLayoutVertical call it is valid to call LayoutUtility.GetMinHeight, LayoutUtility.GetPreferredHeight, and LayoutUtility.GetFlexibleHeight on the RectTransform of itself or any of its children.

The component may use this information to determine the width and height to use for its own RectTransform or the RectTransforms of its children.

Methods

SetLayoutHorizontal()

Callback invoked by the auto layout system which handles horizontal aspects of the layout.

Declaration

void SetLayoutHorizontal()

SetLayoutVertical()

Callback invoked by the auto layout system which handles vertical aspects of the layout.

Declaration

void SetLayoutVertical()