《Picture in Picture on Android TV (Ep 2)》
（提示：如果视频分为多个小段，请下载后用视频合并软件合并。）教程列表：
Designing for Split-Screen Multi-Window (Android Development Patterns S3 Ep 1)
Picture in Picture on Android TV (Android Development Patterns S3 Ep 2)
An ~extended~ Doze mode (Android Development Patterns S3 Ep 3)
Notifications with Direct Reply (Android Development Patterns S3 Ep 4)
Bundled Notifications (Android Development Patterns S3 Ep 5)
Data Saver (Android Development Patterns S3 Ep 6)
Scoped Directory Access (Android Development Patterns S3 Ep 7)
Direct Boot (Android Development Patterns S3 Ep 8)
Java 8 Language Features on Android (Android Development Patterns S3 Ep 9)
Storage Access Framework: Building a DocumentsProvider (Android Development Patt
Virtual Files in the Storage Access Framework (Android Development Patterns S3 E
Background work with JobScheduler (Android Development Patterns S3 Ep 12)
Quick Settings Tiles (Android Development Patterns S3 Ep 13)
Background Optimizations (Android Development Patterns S3 Ep 14)