Run Eclipse. In the Windows | Preferences, click on Android. Locate the folder of the android-sdk from the step where you installed the android-sdk, as shown in the following screenshot:
Android preferences in Eclipse
Click on Apply and hit OK.
The next thing to do is to download the Android APIs and the operating system images. Installing Android SDK is time consuming. It requires a smooth broadband line because after the installation you need to download the API package for Android and Google API.
To start this, click on the Android SDK Manager icon, as shown in the following screenshot:
The Android SDK Manager icon
You will be provided with the list of all SDK Platforms for all Android versions. I suggest you be selective, just download your target platform first. If you are to develop an app for Froyo (Android 2.2) you need to download the API version 8. Later, when you have more time, you could come back and download for the other version. If you do not have any time and Internet data constraints then you may download all. It will fetch API packages, Android OS images, debugging tools and other softwares related to Android development.
For this time, we will download the latest SDK with Jellybean system image and API level 16, as shown in the following screenshot:
Installing SDK with API level 16
Before hitting the Install button, there is one important tip I'd like to share. While conducting this procedure, we may encounter a connection reset problem for no specific reason. To get over this issue, on the Android SDK Manager window, navigate to Tools | Options. Uncheck the Force https://...sources to be fetched using https://... option, and Close (shown in the following screenshot). You may start the SDK and API installation now:
After the SDK, APIs and system images have been downloaded, restart Eclipse. The wait is worth it! After almost a couple of hours of installation and downloading packages, I got this nice graphical interface for the screen layout arrangement, as shown in the following screenshot. Check the Android Preferences window, and you may see the Android 4.1 in the API list. To add another API, again you need to download through the Android SDK Manager:
List of Android APIs
To avoid earlier steps on setting up ADT with Eclipse and kick start development please download the ADT bundle from http://developer.android.com/sdk/index.html and follow the steps for setting up at http://developer.android.com/sdk/installing/bundle.html.
In the next chapter, we will look into tools of an ADT environment that eases the development.