概览

android-directory-structure.png

我个人习惯使用以下目录：

  • api
  • db
  • utilities
  • ui
  • viewmodels
  • workers

DB子目录

This directory houses all DB-related components:

  • Database: The main access point to your app’s persistent data.
  • Data Entities: Classes that represent tables in your database.
  • Data Access Objects (Dao): Interfaces or abstract classes that define methods for accessing and manipulating data in your database.

src/main/java/com/example/myapplication/db:

  • Database.kt
  • ADao.kt
  • A.kt
  • BDao.kt
  • B.kt

UI组件子目录

This directory houses all UI-related components:

  • Activities: The entry points for user interaction.
  • Fragments: Reusable UI components that can be combined within Activities.
  • Custom Views: Specialized UI elements created by extending existing View classes.
  • Adapters: Classes that bridge data and UI elements for displaying lists or grids.

src/main/java/com/example/myapplication/ui:

  • MainActivity.kt
  • AListFragment.kt
  • ADetailsFragment.kt
  • ARecyclerViewAdapter.kt
  • BListFragment.kt
  • BDetailsFragment.kt
  • CFragment.kt

View Models子目录

viewmodels directory:

  • Contains ViewModel classes that manages UI-related data and survives configuration changes (like screen rotation).

src/main/java/com/example/myapplication/viewmodel:

  • AViewModel.kt
  • BViewModel.kt

UI布局子目录

src/main/res/layout:

  • activity_main.xml
  • fragment_a_list.xml
  • fragment_a_details.xml
  • fragment_b_list.xml
  • fragment_b_details.xml
  • fragment_c.xml
  • list_item.xml

UI导航子目录

src/main/res/navigation:

  • nav_graph.xml

AndroidManifest声明文件

src/main:

  • AndroidManifest.xml

References:

  • https://stackoverflow.com/a/63650013
  • https://blog.stackademic.com/organizing-your-android-app-with-mvvm-a-package-hierarchy-guide-c1c0f48fba60