android_studio_full_uninstall.sh

#!/bin/sh
# Uninstall Android Studio

rm -Rf /Applications/Android\ Studio.app
rm -Rf ~/Library/Preferences/AndroidStudio*
rm ~/Library/Preferences/com.google.android.studio.plist
rm -Rf ~/Library/Application\ Support/AndroidStudio*
rm -Rf ~/Library/Logs/AndroidStudio*
rm -Rf ~/Library/Caches/AndroidStudio*

#Execute these commands from the terminal

rm -Rf /Applications/Android\ Studio.app
rm -Rf ~/Library/Preferences/AndroidStudio*
rm ~/Library/Preferences/com.google.android.studio.plist
rm -Rf ~/Library/Application\ Support/AndroidStudio*
rm -Rf ~/Library/Logs/AndroidStudio*
rm -Rf ~/Library/Caches/AndroidStudio*

# if you would like to delete all projects:

# rm -Rf ~/AndroidStudioProjects

# to remove gradle related files (caches & wrapper)

rm -Rf ~/.gradle

# use the below command to delete all Android Virtual Devices(AVDs) and *.keystore. note: this folder is used by others Android IDE as well, so if you still using other IDE you may not want to delete this folder)

rm -Rf ~/.android

# to delete Android SDK tools

rm -Rf ~/Library/Android*

# Source of info:
# http://stackoverflow.com/questions/17625622/how-to-completely-uninstall-android-studio