Architecture for App Bundles
summary
A team breaks a monolithic Android app into feature modules (onboarding, markets, dealing, payments) and cuts incremental build time from about 1.5 minutes to 15 seconds incremental builds. Implementation uses explicit Navigator interfaces injected via Dagger (app module implements navigation), UI composition via decorator-command objects, and Dagger component dependencies (not subcomponents) to wire dynamic modules. For on-demand delivery it relies on the Play Core dynamic install flow and app signing; fallback uses reflection/class.forName when no activity/fragment entry exists.
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chapters (13)
- 0:00Introduction
- 4:25New Structure
- 5:50Future Modules
- 7:03Navigation
- 9:50decorators
- 12:27Bundles
- 13:20Recap
- 18:02Why Bundles
- 18:37Modular Approach
- 22:35Refactoring
- 25:26Activity
- 27:20Dependencies
- 30:56Dynamic Features
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