Android 11 デベロッパー プレビュー 2 が公開されました。ぜひお試しのうえ、フィードバックをお寄せください
added in version 22.1.0

android.support.v4.provider

Classes

DocumentFile Representation of a document backed by either a DocumentsProvider or a raw file on disk. 
FontRequest Information about a font request that may be sent to a Font Provider. 
FontsContractCompat Utility class to deal with Font ContentProviders. 
FontsContractCompat.Columns Defines the constants used in a response from a Font Provider. 
FontsContractCompat.FontFamilyResult Object returned from fetchFonts(Context, CancellationSignal, FontRequest)
FontsContractCompat.FontInfo Object represent a font entry in the family returned from fetchFonts(Context, CancellationSignal, FontRequest)
FontsContractCompat.FontRequestCallback Interface used to receive asynchronously fetched typefaces.