SettingsProviderAttribute

描述

用于注册新 SettingsProvider 的属性。使用此属性可以修饰返回 SettingsProvider 实例的函数。如果函数返回 null，则 Settings 窗口中不会显示 SettingsProvider。

using System.IO;
using System.Linq;
using UnityEditor;

class MyCustomSettingsProvider : SettingsProvider
{
    const string k_MyCustomSettingsPath = "Resources/MyCustomSettings.asset";
    public MyCustomSettingsProvider(string path, SettingsScope scope)
        : base(path, scope) {}

    public static bool IsSettingsAvailable()
    {
        return File.Exists(k_MyCustomSettingsPath);
    }

    [SettingsProvider]
    public static SettingsProvider CreateMyCustomSettingsProvider()
    {
        if (IsSettingsAvailable())
        {
            return new MyCustomSettingsProvider("MyCustomSettings", SettingsScope.Project);
        }

        // Settings Asset doesn't exist yet. No need to display anything in the Settings window.
        return null;
    }
}

构造函数