Android Emulator Shortcuts

When you’re working with the built-in Android emulator for Android Studio you have to use some button from the physical device to test your app, such as ‘volume down’ or ‘lock’.

Here is a short list of the available shortcuts for the emulator:

Main Device Keys
Home Home Button
F2 Left Softkey / Menu / Settings button (or `Page up`)
Shift+f2 Right Softkey / Star button (or Page down)
Esc Back Button
F3 Call/ dial Button
F4 Hang up / end call button
F5 Search Button
Other Device Keys
Ctrl+F5 Volume up (or + on numeric keyboard with Num Lock off)
Ctrl+F6 Volume down (or - on numeric keyboard with Num Lock off)
F7 Power Button
Ctrl+F3 Camera Button (or Ctrl+5 on numeric keyboard with Num Lock off)
Ctrl+F11 Switch layout orientation portrait/landscape backwards (or 7 on numeric keyboard with Num Lock off)
Ctrl+F12 Switch layout orientation portrait/landscape forwards (or 9 on on numeric keyboard with Num Lock off)
F8 Toggle cell network
F9 Toggle code profiling (requires --trace startup option)
Alt+Enter Toggle fullscreen mode
F6 Toggle trackball mode
Del Enter trackball mode while key is pressed
4/8/6/2 DPad left/up/right/down (numeric keypad with Num Lock off)
5 DPad center click (numeric keypad with Num Lock off)

Source: http://www.shortcutworld.com/en/win/Android-Emulator.html