Java Reference
In-Depth Information
• The home screen is capable of displaying
widgets
, which are miniature app
views that can be embedded in the home screen and other app screens, and
whichreceiveperiodicupdates.Forexample,theGoogleSearchwidgetappears
near the top of the home screen in
Figure 12-8
.
• The
app launcher
appearsnearthebottomofthehomescreen.Clickitsrectan-
gulargridicontoswitchtotheapplauncherscreenofappicons,andclickany
oftheseiconstolaunchtherespectiveapp.Thelauncheralsopresentsiconsfor
launching the frequently used Phone and Browser apps.
• The home screen is organized around multiple panes. Click the dots on either
side of the app launcher to replace the current pane with the next pane to the
leftorright.Thenumberofpanesthatremaintobevisitedontheleftorrightis
indicated by the number of dots to the left or right of the app launcher.
• The house icon phone control button takes you from wherever you are to the
home screen.
• The MENU phone control button presents a context menu with app-specific
choices for the currently running app's current screen.
• Thecurvedarrowicon(BACK)phonecontrolbuttontakesyoubacktothepre-
viousactivityinthe
activity stack
,whichisastackofpreviouslyvisitedscreens.
While the AVD is running, you can interact with it by using your mouse to “touch”
thetouchscreenandyourkeyboardto“press”thedevicekeys.Thefollowinglistidenti-
fies a few mappings from AVD keys to the development computer's keyboard keys:
• Home maps to Home
• Menu (left softkey) maps to F2 or Page Up
• Star (right softkey) maps to Shift-F2 or Page Down
• Back maps to Esc
• Switchtopreviouslayoutorientation(forexample,portraitorlandscape)maps
to KEYPAD_7, Ctrl-F11
• Switch to next layout orientation maps to KEYPAD_9, Ctrl-F12
Tip
YoumustfirstdisableNumLockonyourdevelopmentcomputerbeforeyoucan
use keypad keys.
Figure12-8
displays5554:test_AVDinthetitlebar.The5554valueidentifiesacon-
soleportthatyoucanusetodynamicallyqueryandotherwisecontroltheenvironment
of the AVD.
