Drawable was added in API Level 1
A Drawable is a general abstraction for "something that can be drawn." Most often you will deal with Drawable as the type of resource retrieved for drawing things to the screen; the Drawable class provides a generic API for dealing with an underlying visual resource that may take a variety of forms. Unlike a View, a Drawable does not have any facility to receive events or otherwise interact with the user.
1. Create an Android project, if you don't already have one.
2.In the MainActivity.java file, add the code below to the onCreate method. This will create a Drawable named myDrawable.
Drawable myDrawable;
3. Compile and run!
Resources:
http://developer.android.com/reference/android/graphics/drawable/Drawable.html
http://developer.android.com/guide/topics/resources/drawable-resource.html
http://developer.android.com/guide/topics/resources/drawable-resource.html