Before you can start writing applications for Android, you need to download the SDK platforms for the Android devices for which you want to develop apps. Each platform has a different version of the Android SDK that may be installed on users’ devices. For versions of Android 1.5 and above, there are two platforms available: Android Open Source Projectand Google.
The Android Open Source Project platforms are open source, but do not include Google’s proprietary extensions such as Google Maps. If you choose not to use the Google APIs, Google’s mapping functionality won’t be available to your application. Unless you have a specific reason not to, I’d recommended you to target one of the Google platforms, as this will allow you to take advantage of Google’s proprietary extensions.
- Choose Window->Android SDK and AVD Manager.
- Click Available Packages in the left column and check the repository to show a list of the available Android platforms.
- You can choose which platforms to download from the list, or leave everything checked to download all the available platforms. When you’re done, click Install Selected and follow the installation instructions.
Once everything has been successfully downloaded, you’re ready to start developing for Android.
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