

These are a great resource to browse Android app code. A collection of sample apps that demonstrate a variety of the platform APIs.A copy of the Android platform source code that's useful for stepping through the code while debugging your app.You should always test your app on the latest version of Android and using the emulator with the latest system image is a good way to do so. The Android emulator requires a system image to operate. Each platform version offers one or more different system images (such as for ARM and x86).In order to build an Android app, you must specify an SDK platform as your build target. It includes an android.jar file with a fully compliant Android library. There's one SDK Platform available for each version of Android.

An offline copy of the latest documentation for the Android platform APIs.These tools are always backward compatible with older platforms, but you must be sure that you have the latest version of these tools when you install a new SDK platform. These tools support the latest features of the Android platform and are typically updated only when a new platform becomes available.


