My .bash_profile looks like this
export PATH=$PATH:/Users/subbarao/Library/Android/sdk/platform-tools/
export ANDROID_HOME=/Users/subbarao/Library/Android/sdk/
export PATH=$ANDROID_HOME/platform-tools:$PATH
export PATH=$ANDROID_HOME/tools:$PATH
even $(user/libexec/path_helper -s)
When I give ionic platform add android I am getting like this 
When I give ionic run android I am running into this error
Error: Could not find gradle wrapper within Android SDK. Might need to update your Android SDK. Looked here: /Users/subbarao/Library/Android/sdk/tools/templates/gradle/wrapper
Update SDK and gradle version and then try following commands in the terminal
export ANDROID_HOME=/Applications/ADT/sdk
PATH environment variable
export PATH=$PATH:$ANDROID_HOME/bin
You have cordova-android v 6.1.2. There was an issue with cordova-android. Check this answer.
Try
ionic platform add android@6.2.1
Or
ionic platform add android@latest
Update:
if you are using ionic cli v3, the command is
ionic cordova platform add android@latest