EditorPrefs.DeleteKey

描述

从首选项中移除 key 及其对应值。

移除用户输入的编辑器首选项，如果首选项不存在，则输出消息。

// Removes a user entered editor preference.
// If it does not exists it prints a message.

using UnityEngine;
using UnityEditor;

public class DeleteKeyExample : EditorWindow
{
    string editorPref = "";

    [MenuItem("Examples/EditorPrefs/Clear Key Preference")]
    static void Init()
    {
        DeleteKeyExample window = GetWindowWithRect<DeleteKeyExample>(new Rect(0, 0, 250, 50));
        window.Show();
    }

    void OnGUI()
    {
        editorPref = EditorGUILayout.TextField("Editor key name:", editorPref);
        if (GUILayout.Button("Delete"))
            if (EditorPrefs.HasKey(editorPref))
            {
                if (EditorUtility.DisplayDialog("Removing " + editorPref + "?",
                    "Are you sure you want to " +
                    "delete the editor key " +
                    editorPref + "?, This action cant be undone",
                    "Yes",
                    "No"))
                    EditorPrefs.DeleteKey(editorPref);
            }
            else
            {
                EditorUtility.DisplayDialog("Could not find " + editorPref,
                    "Seems that " + editorPref +
                    " does not exists or it has been deleted already, " +
                    "check that you have typed correctly the name of the key.",
                    "OK");
            }
    }
}