Google Android Emulator Tutorial

goandroid

Hello Android fans and developers. I'd like to share with you some emulator skins I created for the
Google Android SDK
. They are tested to work with the latest Android SDK version 1.0r1.
   

Installation of new Skins

Using a blank screen as Skin

Changing the window size of the Android Emulator

Controlling the Android Emulator through keyboard keys

Creating an SD card for use in Android Emulator

   
    Installation of new Skins
   
Unpack the .zip file and copy the created directory and files to ./tools/lib/images/skins/ within the installation directory of the Android SDK.
   
If you have eclipse running restart it to refresh the list of available screen sizes in the run configuration.
   
Go to -> Run -> Run Configurations... -> Target -> Emulator launch parameters and choose your new skin.
Using a blank screen as Skin
   
If you are not in the need
for fancy devices showing in the emulator window, want to waste as
little screen property as possible for the emulator and are prepared to
use the
keyboard shortcuts
to maneuver the emulated Android device, then you may start the emulator adding the simple command line option -skin ­­x.
   
For example, using the option -skin ­­320x480 will provide you with a small window in the standard resolution of the HTC Dream / T-Mobile G1.
   
This is a great and fast way to test various display resolutions without the need for a dedicated skin to be created first.
Changing the window size of the Android Emulator
   
For
those of you developing on a typical notebook the skins with
resolutions of VGA and above may produce an emulator window that
doesn't fit onto the desktop anymore. Since using a skin with a lower
resolution might position the Android screen objects in a different way
it may not desirable to retreat to those if testing is needed for high
resolution devices.
   
The solution is to append the parameter -scale ­­
to the Emulator launch parameters. In eclipse, put it in the field
"Additional Emulator Command Line Options" within the Run Configuration.
   
Allowed scale factors are those between 0.1 and 3, although the most common will probably be -scale 0.5 .
Controlling the Android Emulator through keyboard keys
   
Keypad keys only work when NumLock is deactivated.
     
      Controls for the Android OS
      
        
          Keyboard
          OS function
        
      
      
        EscapeBack button
        HomeHome button
        F2, PageUpMenu (Soft-Left) button
        Shift-F2, PageDownStar (Soft-Right) button
        F3Call/Dial button
        F4Hangup/EndCall button
        F5Search button
        F7Power button
        Ctrl-F3, Ctrl-KEYPAD_5Camera button
        Ctrl-F5, KEYPAD_PLUSVolume up button
        Ctrl-F6, KEYPAD_MINUSVolume down button
        KEYPAD_5DPad center
        KEYPAD_4DPad left
        KEYPAD_6DPad right
        KEYPAD_8DPad up
        KEYPAD_2DPad down
      
   
     
      Controls for the Android Emulator
      
        
          Keyboard
          Emulator function
        
      
      
        F8toggle cell network on/off
        F9toggle code profiling (when -trace option set)
        Alt-ENTERtoggle fullscreen mode
        Ctrl-Ttoggle trackball mode
        Ctrl-F11, KEYPAD_7switch to previous layout
        Ctrl-F12, KEYPAD_9switch to next layout
        KEYPAD_MULTIPLYincrease onion alpha
        KEYPAD_DIVIDEdecrease onion alpha
      
   
   
   
    Creating an SD card for use in Android Emulator
   
To create an image of an SD card we use the command mksdcard -l  [K­|M] .
   
For example, to create a small SD card for testing purposes we might use the command mksdcard -l SD256M 256M sd256m.img
to receive a 256MB image named sd256m.img. The resulting file is a
standard FAT32 image file that can be mounted as such and prefilled
with files we later want to use within Android. To tell the Android
Emulator to use an SD card, we append the parameter -sdcard  to the emulator command line options where "imagefile" includes the whole path to the file.


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