Apple Newton Utilities Uživatelská příručka stáhnout pdf (Strana 207)

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CHAPTER 6

Pickers, Pop-up Views, and Overviews

General-Purpose Pickers 6-7

■ The protoTextList picker is a scrollable list of items. The user can scroll the

list by dragging or scrolling with the optional scroll arrows and can choose one

or more items in the list by tapping them. The scrollable list can include shapes

or text. For information about the slots and methods for this picker, see

“protoTextList” (page 5-20) in Newton Programmer’s Reference. Figure 6-6

shows an example of a

protoTextList.

Figure 6-6 A protoTextList example

■ The protoTable picker is a simple one-column table of text. The user can tap

any item in the list to select it. For information about the slots and methods for

this picker, see “protoTable” (page 5-24) in Newton Programmer’s Reference.

Figure 6-7 shows an example of a

protoTableList picker.

Figure 6-7 A protoTable example

You deﬁne the format of the table using a protoTableDef object; see

“protoTableDef” (page 5-27) in Newton Programmer’s Reference for

information. You deﬁne the format of each row using a

protoTableEntry

object; see “protoTableEntry” (page 5-29) in Newton Programmer’s Reference

for information.

Using protoGeneralPopup 6

As with most protos, you create a protoGeneralPopup object by using the

NTK palette to draw one in your layout. After creating the object, you should

remove the

context and cancelled slots. The viewBounds should be (0,

0, width, height) for the box. The New method tries to set the bounds

correctly, based on the recommended bounds passed to the call.

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