Juanita

This is an app meant for developers or people who are just curious about their Android device. Full source available: https://bitbucket.org/mveroukis/juanita

There are so many different devices and it's often not obvious how each device is configured. Android uses configuration qualifiers for it's resources, which means you can use different sets of resources depending on the screen density or orientation. Sometimes it's not obvious what a particular device's screen size or screen pixel density is, but Juanita will tell you.

The app hardly has any code, all the logic is done by the Android system. String resources have been created for most resource configuration qualifiers (ex: values-ldpi, values-large, etc) and those string values are displayed in a table. When Android loads the app it loads the appropriate resource based on the device configuration.