This guide shows you how to setup a Mac for Android development.
Head over to the Android Developer website and download the latest version of Android studio.
You'll need to accept the terms and conditions, and select the appropriate version of Android Studio for the Mac you're working on.
Once the download is complete locate the .dmg file and open it. You will be presented with the following dialog:
Drag the Android Studio icon into the Applications icon. Double-click the Applications icon, then double-click the Android Studio icon from the applications window.
You may be shown Apple's malicious software dialog; click Open
Android Studio should launch to its splash screen, followed by a prompt to install the Android SDK
Hit Next to continue to the SDK selection screen
Leave the default selection and click Next
Click Next in the Verify Settings screen
Leave the android-sdk-license root node selected, select the Accept radio button, then click Next.
The download of components will start
Clicking the Finish button is the last task of the process.
Your Android Studio installation and setup is now complete.