首次啟動Android Studio時，就出現“Unable to access Android SDK add-on list”

google被墻了啊

之后又接二連三報各種各樣的連接問題，讓人頭大

卡死

不能忍啊，找了一個國內http的代理，又卡在下面這一步

依然卡死

因為無所不在的墻，安裝Android Studio變成一件特別惡心的事情，幸運的是后來找到了兩個能連上的ip，改了hosts，世界才變得安靜下來。

203.208.49.161 dl.google.com

203.208.49.162 dl-ssl.google.com

接下來是選擇最少的包進行安裝

Get the latest SDK tools

As a minimum when setting up the Android SDK, you should download the latest tools and Android platform:

Open the Tools directory and select:

Android SDK Tools

Android SDK Platform-tools

Android SDK Build-tools (highest version)

Open the first Android X.X folder (the latest version) and select:

SDK Platform

A system image for the emulator, such as

ARM EABI v7a System Image