mill.androidlib.hilt

Trait for mixing in AndroidAppKotlinModule to support the Hilt Dependency Injection framework for Android.

It prepends compilation steps by using Kotlin Symbol Processing for pre-processing the Hilt annotations and generating the necessary classes for Hilt to work, then compiles all the sources together with a Java pre-processor step and finally a transform ASM step to achieve the compile time dependency injection!

Usage:

object app extends AndroidHiltSupport { ... }

A module that can be used to run bytecode transformations with mill.androidlib.hilt.AndroidHiltTransformAsm to achieve Dependency Injection using Hilt .

A standalone executable utility to transform compiled classes with Hilt dependency injection context.

Example usage: java -classpath <classpath> mill.kotlinlib.android.hilt.AndroidHiltTransformAsm <input-directory> <output-directory> where the input directory is the directory containing the compiled classes and the output-directory an already existing directory to place the transformed classes.

The classes are only transformed if they contain the @AndroidEntryPoint or @HiltAndroidApp annotations, otherwise they are copied as is. This code is an adaptation of the gradle hilt plugin transformASM task that can be found in https://github.com/google/dagger/blob/b3d3443e3581b8530cd85929614a1765cd37b12c/java/dagger/hilt/android/plugin/main/src/main/kotlin/dagger/hilt/android/plugin/transform/AndroidEntryPointClassVisitor.kt#L122