26
Creating Interactivity and Navigation
Using the soft keys
(Flash Professional Only)
A device’s soft keys are multifunctional keys that use the device’s display to identify their
purpose at any moment. For example, in the following application, labels above the soft keys
indicate that the user can press the Right soft key to view the next dinner special, or press the
Left soft key to return to the application’s home screen:
To use the Left and Right soft keys, you must first call the
SetSoftKeys
command (see
SetSoftKeys
in
Flash Lite 1.x ActionScript Language Reference
). Subsequently, Flash Lite
generates a
PageDown
event when the user presses the Right soft key and a
PageUp
event when
the user presses the Left soft key. You write ActionScript event handler code that responds to
these events and takes the desired action.
The
SetSoftKeys
command takes two parameters that specify the labels for the Left and
Right soft keys, respectively, that appear when your application is
not
running in full-screen
mode. For applications running in full-screen mode, the labels that you specify are not visible,
so you must create your own labels and position them on the Stage where the soft keys
are located.
Soft key labels
