This is a free Sketch UI kit by DeveloperTown covering Android Pie: 25 hand-crafted vector screens built to that release's updated Material Design standards.
Period-accurate Pie components save recreating that specific Android look by eye when a project genuinely needs it, rather than approximating from old screenshots.
Useful mainly for historical or educational reference against current Android: not a starting point for new app design, since Android Pie (9) predates several later Material Design revisions.
The official developertown.com page for this kit now 404s (DeveloperTown has since pivoted into a general software consulting agency), but the file still circulates via mirrors like Sketch App Sources and Dribbble, and Google's own current Material Design resources are the accurate source for present-day Android UI.
A hand-crafted vector Sketch file for Android Pie, by Developer Town.
