This project is an Android sample project created for the DroidKaigi 2024 conference. It demonstrates the use of KAPT (Kotlin Annotation Processing Tool) and KSP (Kotlin Symbol Processing) to process annotations and generate code.
This project contains the following modules:
appdbview_model_processor
The app module is responsible for the Android application and its user interface. It houses the Application class, Activities and ViewModels for each screen, and defines themes for Jetpack Compose.
In the kotlin1.9/kapt, kotlin1.9/ksp, kotlin2.0/kapt, and kotlin2.0/ksp branches, the db module and the view_model_processor module have a dependency relationship.
In the kotlin1.9/app_only_kapt, kotlin1.9/app_ksp_kapt_room, kotlin1.9/app_ksp_kapt_hilt, and kotlin1.9/app_only_ksp branches, the project utilizes the Room and Hilt libraries. In these branches, the db and view_model_processor modules do not have a dependency relationship.
The db module is responsible for database implementation and configuration. It uses the Room library to handle data operations.
The view_model_processor module defines an Annotation Processor or Symbol Processor. This processor is responsible for defining the ViewModelFactory annotation class and generating a corresponding ViewModelFactory class.
kotlin1.9/kapt：Using kapt with Kotlin version 1.9.kotlin1.9/ksp：Using ksp with Kotlin version 1.9.kotlin1.9/app_only_kapt：Only using kapt with Kotlin version 1.9 for theappmodule.kotlin1.9/app_ksp_kapt_room：Theappmodule uses both kapt and KSP for annotation processing with Kotlin version 1.9. Kapt is used for Room while KSP is used for Hiltkotlin1.9/app_ksp_kapt_hilt：Theappmodule uses both kapt and KSP for annotation processing with Kotlin version 1.9. KSP is used for Room, while kapt is used for Hilt.kotlin1.9/app_only_ksp：Only using ksp with Kotlin version 1.9 for theappmodule.
kotlin2.0/kapt：Using kapt with Kotlin version 2.0.kotlin2.0/ksp：Using ksp with Kotlin version 2.0.