Btukfyl

I have following project in Github : https://github.com/Ali-Rezaei/TMDb-Paging which I use Dagger2 for dependency injection.

One of my Module classes is as Follow in java :

@Module

public abstract class DetailModule {



    @FragmentScoped

    @ContributesAndroidInjector

    abstract DetailFragment detailFragment();



    @Provides

    @ActivityScoped

    static Movie provideMovie(DetailActivity activity) {

        return activity.getIntent().getExtras().getParcelable(EXTRA_MOVIE);

    }

}

As you can see provideMovie method is static. When I convert it to Kotlin :

@Module

abstract class DetailModule {



    @FragmentScoped

    @ContributesAndroidInjector

    internal abstract fun detailFragment(): DetailFragment



    companion object {



        @Provides

        @ActivityScoped

        internal fun provideMovie(activity: DetailActivity): Movie {

            return activity.intent.extras.getParcelable(EXTRA_MOVIE)

        }

    }

}

But when I build the project I get following Kotlin compiler error :

error: @Provides methods can only be present within a @Module or @ProducerModule

        public final com.sample.android.tmdb.vo.Movie provideMovie$app_debug(@org.jetbrains.annotations.NotNull()

Could be any solution to have the class in Kotlin?

Comanion Object is technically different class and not annotated with @Module. (So you are getting that error)

you need to use JVM Annotations for methods. So Kotlin will create a static method inside DetailModule itself.

Try @JvmStatic

@Module

    companion object {

         @JvmStatic

         @Provides

         @ActivityScoped

         internal fun provideMovie(activity: DetailActivity): Movie {

             return activity.intent.extras.getParcelable(EXTRA_MOVIE)

         }

    }