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CHAPTER 4
Pickers
4-12 List Pickers
Scrolling 4
A list picker may contain too many items to display at once on some Newton
devices. This can happen when a user rotates the display (by tapping the
Rotate button in the Extras Drawer). It can also happen if a user adds many
items to a customizable picker, such as a folder picker.
When a list picker becomes too long to fit on the screen, the Newton operating
system automatically reduces the picker’s length and adds ordinary local
scroll arrows to the picker. A user can tap the scroll arrows to bring more
picker items into view. Figure 4-9 shows a scrolling folder picker.
Figure 4-9 List pickers that are too long to display all at once have scroll arrows
As usual, the color of the scroll arrow indicates whether tapping it will bring
more items into view. An arrow is black if tapping it will bring more items
into view. An arrow is white if tapping it will not bring more items into view.
Users can also scroll list pickers by dragging from the middle of the picker
past the top or bottom of the picker. Users cannot scroll a list picker with the
universal scroll arrows. Tapping a universal scroll arrow or anywhere else
outside a list picker makes the picker go away.
1. Before user taps down arrow 2. After user taps down arrow
several times
Scroll arrows for
picker