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C H A P T E R 6
Pickers, Pop-up Views, and Overviews
6-4
General-Purpose Pickers
protoPeoplePopup
The following two protos are data types that support the
protoListPicker
:
protoNameRefDataDef
protoPeopleDataDef
Obsolete Function
6
The
DoPopup
global function used in system software version 1.x is obsolete; it is
supported in version 2.0, but support is not guaranteed in future releases. Use the
new
PopupMenu
function instead.
Picker Categories
6
The remainder of this chapter divides the pickers into a number of categories. The
protos within each category operate in a related manner. General-purpose protos
are used to create simple, general-purpose pickers and pop-up views. The remaining
protos in the list are triggered by specific user actions or by events that you define:
general-purpose pickers
map pickers
text pickers
date, time, and location pickers
number pickers
picture picker
overview protos
roll protos
There is also a section discussing the view classes used with pickers.
General-Purpose Pickers
6
You use the protos described in this section to create simple, general-purpose
pickers and pop-up views. Some of the following protos are triggered by specific
user actions, while others are triggered by events that you define:
The
protoPopupButton
picker is a text button that displays a picker when
tapped. The button is highlighted while the picker is open. For information
about the slots and methods for this picker, see "protoPopupButton" (page 5-4)
in Newton Programmer's Reference. Figure 6-1 shows an example of a
protoPopupButton
.
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