While your app could contain only text and color, you might want to add more visual elements, such as a logo or illustration. Android has particular best practices for adding graphics to your app along with various libraries to create graphic effects or add motion.
An Android asset is referred to as a drawable, a type of resource that is drawn on the screen. This includes, but is not limited to, bitmaps, shapes, and vectors.
When creating images and graphics keep the following in mind:
- Avoid including immutable text in assets..
- Use vector formats first whenever possible.
- Provide assets for resolution buckets.
- Provide sufficient scrim between background images and text..
- Although Android is able to achieve different image effects like gradients, colorization, and blurs, some are more performance costly.
- Animated Vector Drawables provide a scalable format for small UI animations.
