Use annotation processor in kotlin

Question

I have a simple annotation in my processor like following:

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Target(ElementType.TYPE) @Retention(RetentionPolicy.CLASS)
public @interface BundleBuilder
{
    // ...
}

This works in java files but as soon as I convert my file to kotlin, the import of the annotation is not working anymore. Why?

What do I need to change to get his annotation working in kotlin as well? From the docs I can see that kotlin is 100% compatible with java annotations so I'm a little bit confused here what's the problem... I would understand if the processor is not working and needs to be adjusted to work with kotlin, but I don't know why the import itself does not work...

The library I'm talking about is here: https://github.com/MFlisar/BundleArgs

aminography · Accepted Answer · 2018-09-29 11:23:28Z

2

I think you should use kapt for annotation processing in your build.gradle. After all, clean and rebuild your project so.

apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'

//...

dependencies {
    compileOnly 'com.github.MFlisar.BundleArgs:bundleargs-annotation:1.3'
    kapt 'com.github.MFlisar.BundleArgs:bundleargs-processor:1.3'
}

repositories {
    maven { url "https://jitpack.io" }
}

answered Sep 29, 2018 at 11:23

aminography

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3 Comments

prom85 Over a year ago

I'm using kapt everywhere already for quite some time, this is not the problem, sadly...

aminography Over a year ago

I do above in a sample project, no problem happened and BundleBuilder worked well! :-\

aminography Over a year ago

Try to Invalidate caches and restart the AndroidStudio.

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