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 24.1.0

android.support.v17.leanback.widget.picker

Interfaces

Picker.PickerValueListener  

Classes

Picker Picker is a widget showing multiple customized PickerColumns. 
PickerColumn Picker column class used by Picker, defines a contiguous value ranges and associated labels. 
TimePicker TimePicker is a direct subclass of Picker