CHAPTER 4
Pickers
Overview Pickers 4-19
Overview Pickers 4
Like list pickers, overview pickers can pop up in response to a user tapping a
text label or button marked with a black diamond, a picture button, or a hot
spot. And overview pickers, like list pickers, are used to present a user with
items from which to choose. That’s about where the resemblance between
the two types of pickers ends. For example, list pickers allow a user to select
only one item, but overview pickers generally allow a user to select one or
many items. The following sections describe overview pickers in detail.

Contents of Overview Pickers 4

An overview picker presents a one- or two-column extract of stored data,
such as names and phone numbers from the Names File data. The first
column lists the identities of the individual data items that a user can select,
and the second column provides additional information that a user can edit
in place. A title in the upper left corner identifies the type of data in the
picker. An overview picker can include a number of controls for finding
specific entries, including a folder tab, alphabetic index tabs, and scroll
arrows. At the bottom an overview picker can have a checkbox for restricting
listed items to those currently selected, a New button for adding items to the
list, a counter that reports the number of items selected, and a large Close
box. Figure 4-15 points out features of overview pickers.