Refreshes the Hierarchy window.
Use EditorApplication.RepaintHierarchyWindow to refresh the Hierarchy window when changes to GameObjects, such as names, icons, or tags, are not automatically reflected in the Hierarchy window.RepaintHierarchyWindow can be useful when used with custom Editor tools or extensions that dynamically alter GameObject properties. RepaintHierarchyWindow can negatively affect Editor performance, so avoid frequent calls in a performance-critical context.
This API is in the UnityEditor namespace and can only be used in the Unity Editor. Typically, you combine it with EditorApplication.hierarchyChanged or custom events to ensure UI consistency.
Additional resources: HierarchyWindowItemByEntityIdCallback, EditorApplication.hierarchyWindowItemByEntityIdOnGUI.
using UnityEditor; using UnityEngine;
[InitializeOnLoad] public class CustomHierarchyStyling {
static CustomHierarchyStyling() { // Register a callback to draw custom icons in the Hierarchy. EditorApplication.hierarchyWindowItemByEntityIdOnGUI += OnHierarchyGUI; // Repaint the Hierarchy window when the tag changes to reflect icon updates. EditorApplication.hierarchyChanged += () => EditorApplication.RepaintHierarchyWindow(); }
static void OnHierarchyGUI(EntityId entityID, Rect selectionRect) {
GameObject obj = EditorUtility.EntityIdToObject(entityID) as GameObject;
//Add a tag named "Special" to the GameObject to display the custom icon if (obj != null && obj.CompareTag("Special"))
{ // Draw a custom icon on the left side of the GameObject in the Hierarchy Rect iconRect = new Rect(selectionRect.x - 20, selectionRect.y, 18, 18); GUI.Label(iconRect, EditorGUIUtility.IconContent("d_Favorite")); } }
}