mac os x 安装adb

http://stackoverflow.com/questions/31374085/installing-adb-on-mac-os-x

This is the easiest way and will provide automatic updates.

1. Install homebrew

   ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

2. Install adb

   brew install android-platform-tools

3. Start using adb

   adb devices