Modern Android Design Links

Action Bar

Official Design Guidelines - Action Bar

Navigation Patterns & Drawer

Google I/O 2013 - Structure in Android App Design

Google I/O 2013 - Android Design for UI Developers

ADiA - Navigation Drawer Deep Dive

Official Design Guidelines - Navigation Drawer Pattern

Official Developer Site - Navigation Drawer Implementation Training Class

Official Developer Site - Designing Effective Navigation

Official Developer Site - Implementing Effective Navigation

Fading Action Bar

Google Play Music

Sample Implementation by Cyril Mottier

Swipe to Refresh

Sample Implementation by Chris Banes

Cards

ADiA - Google Play Redesign

G+ Post by Nick Butcher with some additional links regarding Google’s evolving design

Google I/O 2013 - Android Design for UI Developers

ADiA - Responsive Design

Android Developer Blog - Designing for Tablets

Official Developer Site - Designing for Multiple Screens

Official Design Guidelines

Official Design Guidelines - Pure Android

ADiA - Backward Compatible Design (for pre-ICS Holo design)

Sample of Community Design Tools and Libraries

Android Action Bar Style Generator - quickly generate a base Action Bar theme

Android Holo Colors Generator - quickly generate holo themes for other UI components

ActionBarSherlock - popular backport of system Action Bar to pre-Honeycomb

Fancy, Expedia, WhatsApp, TED