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CHAPTER 8
Newton Services
8-14 Filing
Filed data items look to a user like they are in folders, but filed items do not
actually reside in a folder or directory structure. Instead, the Filing service
tags a filed item to identify the folder in which it belongs. When a user
wishes to see an application’s data items belonging to a particular folder,
the application displays the data items having the appropriate tag.
Applications use two user interface elements to implement filing: a Filing
button and a folder tab. The Filing button enables users to file application
data in folders. After filing items in folders, users can locate them by using
the folder tab and its picker. (For more information on the folder tab, see
page 8-19.)
Filing Button and Slip 8
If you want users to be able to file data in your application, it must include a
Filing button, which is a picture button that looks like a an ordinary file folder.
Tapping a Filing button displays a Filing slip, which enumerates the available
filing options. Figure 8-13 shows a sample Filing button and Filing slip.
Figure 8-13 A Filing slip names available folders and storage locations
Filing button
Filing slip
S
torage locations
F
olders