	Name	Description
	assetPath	The path relative to the resources folder.
	customId	Set a custom id for package, then you can use it in GetById.
	id	Package id. It is generated by the Editor, or set by customId.
	name	Package name.
	resBundle

	Name	Description
	AddPackage(String)	Add a UI package from a path relative to Unity Resources path.
	AddPackage(AssetBundle)	Add a UI package from assetbundle.
	AddPackage(String, UIPackage.LoadResource)	使用自定义的加载方式载入一个包。
	AddPackage(AssetBundle, AssetBundle)	Add a UI package from two assetbundles. desc and res can be same.
	AddPackage(Byte[], String, UIPackage.LoadResource)	使用自定义的加载方式载入一个包。
	AddPackage(AssetBundle, AssetBundle, String)	Add a UI package from two assetbundles with a optional main asset name.
	CreateObject(String)
	CreateObject(String, String)	Create a UI object.
	CreateObject(String, Type)
	CreateObject(String, String, Type)	Create a UI object.
	CreateObjectAsync(String, UIPackage.CreateObjectCallback)
	CreateObjectAsync(String, String, UIPackage.CreateObjectCallback)
	CreateObjectFromURL(String)	Create a UI object.
	CreateObjectFromURL(String, UIPackage.CreateObjectCallback)
	CreateObjectFromURL(String, Type)	Create a UI object.
	GetById	Return a UIPackage with a certain id.
	GetByName	Return a UIPackage with a certain name.
	GetItem
	GetItemAsset(String)
	GetItemAsset(PackageItem)
	GetItemAsset(String, String)	Get a asset with a certain name.
	GetItemAssetByURL	Get a asset with a certain name.
	GetItemByName
	GetItemByURL
	GetItems
	GetItemURL	Get url of an item in package.
	GetPackages
	LoadAllAssets
	NormalizeURL	将'ui://包名/组件名'转换为以内部id表达的url格式。如果传入的url本身就是内部id格式，则直接返回。同时这个方法还带格式检测，如果传入不正确的url，会返回null。
	ReloadAssets()
	ReloadAssets(AssetBundle)
	RemoveAllPackages
	RemovePackage	Remove a package. All resources in this package will be disposed.
	SetStringsSource	Set strings source.
	UnloadAssets

UIPackage Class

Reference