The Gadgetbridge app can export running GPS data from smartwatches and
milkha can present the data in the form of stats, tables and graphs.
Navigate to the Activities list under Gadgetbridge and click on a run,
it should load in milkha.
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see Understanding the Android Support Library.