问题
My AVD Nexus emulator isn't allowing me to test my android programs. When I open it I get this message?

回答1:
AFAIK the emulator always says that or that it is charging, but it never changes. Did you "unlock" your emulator after running your program? You need to click on the lock symbol and drag it to unlock and your app should run just fine.
回答2:
If you want to change emulator power status use:
$ curl telnet://localhost:5554 <<!
power status full
quit
!
or
$ curl telnet://localhost:5554 <<!
power display
quit
!
to show the current status:
AC: online
status: Full
health: Good
present: true
capacity: 100
来源:https://stackoverflow.com/questions/16484325/cant-get-eclipse-avd-nexuss-4-1-to-work-says-connect-your-charger