Android SDK 描画について

　The Canvas class holds the "draw" calls. To draw something, you need 4 basic
components: A Bitmap to hold the pixels, a Canvas to host the draw calls
(writing into the bitmap), a drawing primitive (e.g. Rect, Path, text,
Bitmap), and a paint (to describe the colors and styles for the drawing).

http://code.google.com/android/reference/android/graphics/Canvas.html

WindowsAPIの描画の感じににてるのかな。

The Paint class holds the style and color information about how to draw
geometries, text and bitmaps.