Changing Android Emulator's orientation

에뮬레이터의 오리엔테이션을 변경하는 단축키는 다음과 같다.

The solution is next:

Switch to previous layout orientation (for example, portrait, landscape) - KEYPAD_7 or Ctrl-F11
Switch to next layout orientation (for example, portrait, landscape) - KEYPAD_9 or Ctrl-F12

Note:

If you prefer to use KEYPAD_7 or KEYPAD_9 you need to turn off your Num Lock.

출처 : http://thedevelopersinfo.wordpress.com/2009/10/27/changing-android-emulators-orientation/