Not an issue, but may I offer my own repositories?
Here they are:
https://github.com/AndroidDeveloperLB?tab=repositories

Also, here are 2 apps that show libraries sample from within Android:
https://play.google.com/store/apps/details?id=com.desarrollodroide.repos
https://play.google.com/store/apps/details?id=com.inappsquared.devappsdirect