Pickers display lists of items that people navigate using the Digital Crown, which enables a precise and engaging way to manage selections.
Pickers present their items in the following styles.
You can configure a picker to display an outline, caption, and scrolling indicator. These elements help identify the picker onscreen and help people navigate its contents.
Use captions to clarify the meaning of items or of the picker itself. You can assign unique captions to an item if it helps to clarify its meaning. Alternatively, you can assign the same caption to all items to clarify the purpose of the picker itself.
Display a scroll indicator when the total number of items might not be obvious. A scroll indicator reflects the total number of items in a picker and indicates the current position within the list. A scroll indicator is unnecessary when the sequence and number of items is obvious, such as when specifying the number of seconds for a timer.