Dagger hilt kapt vs annotationProcessor issues

Context

My dagger-hilt module has been coded in java, some classes (which contains @AndroidEntryPoint) I try to inject were written by java, some of them were written by kotlin. So when I use dagger hilt to do the injection, I have some erros such as

Execution failed for task ':app:transformClassesWithAndroidEntryPointTransformForDebug'.
> javassist.NotFoundException: 

BTW, I created a template project to reproduce this bug here is the link https://github.com/underwindfall/dagger_issue_project

Some potential solutions

Try to use kapt instead of annotationProcessor

I noticed that I was always use annotationProcessor as implementation dependency, at the begining of project, I thought it’s just for this "com.google.dagger:hilt-android-compiler:$hilt_version" is only for Dagger Module, since my dagger modules were coded by Java only , Classes like Activity etc we can still keep it as Kotlin. Turns out it’s not. Try to use kapt instead of annotationProcessor did solve the issue.

Try to code only by java or by kotlin

Yes the project can be compiled.

[bcorso]

The example, seems fine as long as demoModeEnabled isn’t changed while an instance of the DashboardActivity is active.

However, if the demoModeEnabled value can change while DashboardActivity is active, it sounds like you would need to register an observer for the change and either

1. Update all related state in DashboardActivity manually,
2. or recreate the activity when the value changes (which would inject the new, correct value).

If you’re going with 1, you could do that by injecting Provider<DashboardContract.Interactor> and re-getting the value on each change.

Either way, it should be possible without modifying the Dagger graph at runtime.

[underwindfall]

Gotya, thanks for clarifying. Now the details of dagger-hilt looks more clear to me.