90.2 Dynamic Feature Module Architecture
From the outset Android was designed with modularity in mind, particularly in terms of the concepts of Intents and Activities. Dynamic features bring this philosophy to a logical conclusion by allowing an app to install only what the user needs, when the user needs it. Given the flexibility and power of this capability, the implementation of dynamic feature modules is relatively simple.
In basic terms, dynamic feature modules are built using split APK files which allow multiple APK files to be brought together to form a single app.
As we learned in “Creating, Testing and Uploading an Android App Bundle”, dynamic delivery and app bundles work by generating a custom APK file that contains only the bytecode and resources necessary to run the app on a specific device configuration. In this case, the app is still installed via a single APK file, albeit one customized for the user’s device.
In contrast, dynamic feature...
