Drawable resources include bitmaps and NinePatch (stretchable PNG) images. They also include complex composite Drawables, such as LevelListDrawables and StateListDrawables that can be defined in XML.
Both NinePatch Drawables and complex composite resources are covered in more detail in the next chapter.
All Drawables are stored as individual files in the res/drawable folder. The resource identifier for a Drawable resource is the lowercase file name without an extension.
The preferred format for a bitmap resource is PNG, although JPG and GIF files are also supported.
Was this article helpful?
Quick start guide to skyrocket your offline and online business success with mobile apps. If you know anything about mobile devices, you’ve probably heard that famous phrase coined by one of the mobile device’s most prolific creators proclaiming that there’s an app for pretty much everything.