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CloseSearch provider concrete types that will be instantiated and assigned to the Object Picker search context.
[SearchContext("my search", new[] { typeof(MyTextureProvider) })] public Texture2D mySpecialTexture2D; class MyTextureProvider : SearchProvider { static string ProviderId = "myTexture"; public MyTextureProvider() : base(ProviderId) { fetchItems = (context, items, provider) => SearchItems(context, provider); fetchLabel = (item, context) => { var assetPath = AssetDatabase.GUIDToAssetPath((string)item.data); return GetNameFromPath(assetPath); }; fetchThumbnail = (item, context) => { var obj = toObject(item, typeof(Texture2D)); return AssetPreview.GetAssetPreview(obj); }; toObject = (item, type) => { var assetPath = AssetDatabase.GUIDToAssetPath((string)item.data); return AssetDatabase.LoadAssetAtPath(assetPath, type); }; } static IEnumerator SearchItems(SearchContext context, SearchProvider provider) { foreach (var texture2DGuid in GetMyTextures()) { yield return provider.CreateItem(context, texture2DGuid, texture2DGuid.GetHashCode(), null, null, null, texture2DGuid); } } static IEnumerable<string> GetMyTextures() { return AssetDatabase.FindAssets("t:texture2d"); } static string GetNameFromPath(string path) { var lastSep = path.LastIndexOf('/'); if (lastSep == -1) return path; return path.Substring(lastSep + 1); } }