An Introduction to Graphics Resources in Android
This chapter will serve as an introduction to how to best integrate and optimize graphical elements within your Android apps. These include static graphics such as bitmap images, as well as motion graphics, such as tween animation (transform-based or procedural animation), bitmap animation (frame-based or flipbook animation) as well as image transitions (crossfades, or blended image fades from one image into another image).
You will learn how to best use imaging techniques available to your application’s View objects that make up your UI, and how to support all four levels of Android screens (QVGA, HVGA, WVGA, and WSVGA) via custom resource assets.
Note Because VGA is 640 × 480 ...