androidHome.txt

Note for me to remember how to set Android Home on Mac 

Open Terminal and type in..
nano ~/.bash_profile
Add the below paths
The path should be where your android installation is located
export ANDROID_HOME=/Users/username/Library/Android/sdk
export PATH=${PATH}:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools
Save file and type in terminal...
source ~/.bash_profile

Check to see if it is set: echo $ANDROID_HOME
Also, you could run into problems with JAVA_HOME not being set..
Find the location of java home and add to bash profile as above