Keyboard get disabled on Android Studio on Mac
I dealt with the same problem.
'hold down key' (long press) in Mac trigger a special character. looks like that Android Studio doesn't support special characters.
to disable this function in Mac open the Terminal and enter the following command:
defaults write -g ApplePressAndHoldEnabled -bool false
to enable this function - just replace the command to true:
defaults write -g ApplePressAndHoldEnabled -bool true
after you enter the disable command - closing Android Studio and starting over will resolve that problem for good.
source: http://osxdaily.com/2011/08/04/enable-key-repeat-mac-os-x-lion
Press the key 'x' and hold it for 5 seconds. The keyboard will be back to normal again.