EditorWindow.OnSelectionChange()

설명

Called whenever the selection has changed.

Saves the current selection and load it later with a simple click.

// Simple example that lets you save the current selection and load it.
 
using UnityEngine;
using UnityEditor;
using System.Collections;
 
public class ExampleClass : EditorWindow {
   
    private int[] selectionIDs;
 
    [MenuItem ("Example/Selection Saver")]
 
    private static void Init() {
        ExampleClass window = (ExampleClass)GetWindow(typeof(ExampleClass));
        window.Show();
    }
 
    void OnGUI() {
        if(GUILayout.Button("Save"))
            SaveSelection();
        if(GUILayout.Button("Load"))
            LoadLastSavedSelection();
    }
 
    void OnSelectionChange() {
        selectionIDs = Selection.instanceIDs;
    }
 
    private void SaveSelection() {
        var saveStr = "";
        foreach(int i in selectionIDs) {
            saveStr += i.ToString() + ";";
        }
        saveStr = saveStr.TrimEnd(char.Parse(";"));
        EditorPrefs.SetString("SelectedIDs",saveStr);
    }
 
    private void LoadLastSavedSelection() {
        string[] strIDs = EditorPrefs.GetString("SelectedIDs").Split(char.Parse(";"));
 
        int[] ids = new int[strIDs.Length];
        for(var i = 0; i < strIDs.Length; i++)
            ids[i] = int.Parse(strIDs[i]);
        Selection.instanceIDs = ids;
    }
}