UnityEditor callback OnRefresh()?

[andy_t]

What is UnityEditor callback (if any) which is called when I press Ctrl+R in Editor to recompile changed sources?

[sarahnorthway]

As of Unity 2019 there are several options:

1. OnPostprocessAllAssets on an AssetPostprocessor fires when Ctrl+R finds an asset change, including added/deleted sprites, or code changes which trigger a compile.

   using UnityEditor;
   using UnityEngine;

   public class GeneralPostprocessor : AssetPostprocessor {
   static void OnPostprocessAllAssets(string importedAssets, string deletedAssets, string movedAssets, string movedFromAssetPaths) {
   Debug.Log(“OnPostprocessAllAssets fired”);
   }
   }

2. DidReloadScripts fires after Ctrl+R triggers a compile, and also when the Play button is hit. It doesn’t need to be placed in an AssetPostprocessor subclass.

   [UnityEditor.Callbacks.DidReloadScripts]
   private static void OnScriptsReloaded() {
   Debug.Log(“OnScriptsReloaded”);
   }

3. InitializeOnLoad causes a static constructor to be called after assemblies are reloaded, which is the same behavior as DidReloadScripts (on compile and on play).

   [InitializeOnLoad]
   public class SomeClass {
   static SomeClass() {
   Debug.Log(“SomeClass static constructor”);
   }
   }