10
Creating Interactivity and Navigation
Each navigation mode discussed in the following sections references a sample file that you can
view in the Flash Lite emulator. Each sample file consists of the same three-by-three grid of
buttons, as shown below. The only difference between the sample files is that each is
configured to target a device and Flash Lite content type that support the navigation mode
in question.
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To use each sample file, open it in Flash and test it in the emulator (select Control > Test
Movie). Click the arrow keys on the emulator’s keypad (or press the arrow keys on your
keyboard) to see how each navigation mode affects user navigation.
Two-way navigation
In two-way navigation, the device’s Up and Down arrow keys move
focus from one object (button or input text field) to another; the Left and Right arrow keys
have no effect. The Down key moves the focus to the next object on the right. If there are no
objects positioned to the right of the current object with focus, focus moves to the leftmost
object below the current object with focus. If there are no objects below the rightmost object
with focus, focus moves to the top and leftmost object. The Up key moves focus to the next
object on the left. If there are no objects to the left of the current object with focus, focus
moves to the rightmost object above the object.
For an example of two-way navigation, see the sample file named 2_way_nav.fla, located in
the Samples and Tutorials/Samples/Flash Lite folder in the Flash installation folder.
Four-way navigation
In four-way navigation, the user can move focus from one object to
another with the device’s Left, Right, Up, and Down keys. Pressing the Left key moves the
focus from the current object with focus to the object to the left of the button with focus. The
Right key moves the focus to the next button to the right of the button with focus. The Up
and Down keys similarly move focus to the button above and below the button with focus.
For an example that uses four-way navigation, see the sample file named 4_way_nav.fla
located in the Samples and Tutorials/Samples/Flash Lite folder in the Flash installation folder.
Four-way navigation with wrap-around
This mode is the same as four-way navigation,
except that when there are no buttons below the rightmost button with focus, focus moves to
the top and leftmost button.
Array of buttons in sample file
