A demonstration about how to inject BindingAdapters with Dagger Hilt.

HiltDataBinding.kt

BindingScoped.kt

@Scope
@Retention(AnnotationRetention.BINARY)
annotation class BindingScoped

-------------------------------------------------------

CustomBindingComponent.kt

@BindingScoped
@DefineComponent(parent = SingletonComponent::class)
interface CustomBindingComponent

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CustomBindingComponentBuilder.kt

@DefineComponent.Builder
interface CustomBindingComponentBuilder {
    fun build(): CustomBindingComponent
}

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CustomBindingEntryPoint.kt

@EntryPoint
@BindingScoped
@InstallIn(CustomBindingComponent::class)
interface CustomBindingEntryPoint: DataBindingComponent {

    @BindingScoped
    override fun getImageBindingAdapter(): ImageBindingAdapter
}

-------------------------------------------------------

MyApp.kt

@HiltAndroidApp
class MyApp : Application() {

    @Inject
    lateinit var bindingComponentProvider: Provider<CustomBindingComponentBuilder>

    override fun onCreate() {
        super.onCreate()

        val dataBindingComponent = bindingComponentProvider.get().build()
        val dataBindingEntryPoint = EntryPoints.get(
            dataBindingComponent, CustomBindingEntryPoint::class.java
        )

        DataBindingUtil.setDefaultComponent(dataBindingEntryPoint)
    }
}

@DefineComponent com.example.base.di.CustomBindingComponent, cannot extend a super class or interface. Found: androidx.databinding.DataBindingComponent

@DefineComponent com.example.base.di.CustomBindingComponent, cannot extend a super class or interface. Found: androidx.databinding.DataBindingComponent

Hi Abdul,

Thanks for your interest. Do you enable DataBinding in your project or use a newer version of Hilt? As far as I remember, they were planning to ease usage of Hilt for transitive functions. Can you please try it with lower versions or take a look at issues? Or you can share the project with me to check it out if possible. Please let me know. Thanks.

same issue,
symbol: class CustomBindingComponentBuilder
location: class App/home/yusuf/AndroidStudioProjects/MiK/app/src/main/java/me/modernpage/di/CustomBindingComponent.java:10: error: cannot find symbol
interface CustomBindingComponent extends DataBindingComponent {
^
symbol: class DataBindingComponent/home/yusuf/AndroidStudioProjects/MiK/app/src/main/java/me/modernpage/di/CustomBindingComponent.java:10: error: [Hilt]
interface CustomBindingComponent extends DataBindingComponent {
^
@DefineComponent me.modernpage.di.CustomBindingComponent, cannot extend a super class or interface. Found: DataBindingComponent

@ModerPage it is working well for me. The only difference is that ApplicationComponent was replaced with SingletonComponent. Otherwise rest of the code remains the same. Please check and let me know if it works for you, too!

For those who are being stuck on this gist to fix issues running around Hilt and DataBinding implementation, I created a working sample repository for you! Please take a look at it if you want to see how it is working.

Repository: https://github.com/nuhkoca/HiltDataBindingSample

Thanks alot. its working now @nuhkoca

That's great to hear! @AhmMhd