Welcome to the Android SDK!
If you've downloaded the Android SDK for the first time
Follow the guide to Installing the Android SDK, which will help you setup your development environment.
If you've installed new SDK components using the Android SDK Manager
There's no additional setup.
Note: You are currently viewing the offline version of the Android developer documentation. Because some features such as search and videos are network-based, not everything will work if you are not connected to the Internet. Additionally, the online version may contain more recently updated documents.
For the latest documentation, please visit developer.android.com.