For the first step, we need to install the Android Xcode plugin.
So, go to the website here and download the plugin first:
In my case, I have already downloaded; however, in your case, the button won't be grayed out.
Once downloaded, we will extract the content. Now, we will right-click on the
SBAndroid-community-4f54d0f6.pkg file and click on Open as otherwise OS X won't allow it to be installed.
We will then click on Continue to start the installation process. After this, we will click on Install Software