SettingsProvider.OnDeactivate

Description

Use this function to implement a handler for when the user clicks on another setting or when the Settings window closes.

using UnityEditor;
using UnityEngine;
using UnityEngine.UIElements;

class SimpleIMGUISettingsProvider : SettingsProvider
{
    SerializedObject m_Settings;
    const string k_MyCustomSettingsPath = "Assets/Editor/MyCustomSettings.asset";
    public SimpleIMGUISettingsProvider(string path, SettingsScope scope = SettingsScope.User)
        : base(path, scope) {}

    public override void OnActivate(string searchContext, VisualElement rootElement)
    {
        // Called when the user clicks on the MyCustom element in the Settings window.
        m_Settings = new SerializedObject(AssetDatabase.LoadAssetAtPath<UnityEngine.Object>(k_MyCustomSettingsPath));
    }

    public override void OnDeactivate()
    {
        // User selected another settings or closed the Settings window.
        m_Settings = null;
    }

    public override void OnGUI(string searchContext)
    {
        // Use IMGUI to display UI:
        EditorGUILayout.PropertyField(m_Settings.FindProperty("m_Number"), new GUIContent("My Number"));
        EditorGUILayout.PropertyField(m_Settings.FindProperty("m_SomeString"), new GUIContent("Some string"));
        m_Settings.ApplyModifiedPropertiesWithoutUndo();
    }
}