Hilt ‐ multi binding ElementsIntoSet

Contents
Observations
Output
Code

Observation

Output

<------------------------------------>
PLANET INSTANCE:->125173523
PLANET:-> com.istudio.di.modules.hilt.demos.multibinding_demo.elements_into_set_demo.implementations.Earth@775ff13
<------------------------------------>
<------------------------------------>
PLANET INSTANCE:->212309328
PLANET:-> com.istudio.di.modules.hilt.demos.multibinding_demo.elements_into_set_demo.implementations.Mars@ca79550
<------------------------------------>

Code

Contents
Implementation
Modules
Activity

Implementation

Planet.kt

interface Planet {
    fun printInstance(name:String)
}

Earth.kt

class Earth @Inject constructor() : Planet {
    override fun printInstance(name: String) {

    }
}

Mars.kt

class Mars @Inject constructor() : Planet {
    override fun printInstance(name: String) {

    }
}

Modules

HiltPlanetModule.kt

@InstallIn(SingletonComponent::class)
@Module
object HiltPlanetModule {
    @Provides
    @ElementsIntoSet
    fun providePlanets(): Set<@JvmSuppressWildcards Planet> {
        return setOf(
            Earth(),
            Mars()
        )
    }
}

Activity

MyActivity.kt

@AndroidEntryPoint
class MyActivity : AppCompatActivity() {

    private lateinit var binding: ActivityHiltMultiBindingsSelectionBinding
    // IntoSet
    @Inject lateinit var planets : Set<@JvmSuppressWildcards Planet>

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityHiltMultiBindingsSelectionBinding.inflate(layoutInflater)
        setContentView(binding.root)
        setOnClickListeners();
    }

    private fun setOnClickListeners() {
        binding.apply {
            usingIntoSetId.setOnClickListener {
                // IntoSet
                planets.forEach { planet ->
                    PrintUtils.printLog("<------------------------------------>")
                    PrintUtils.printLog("PLANET INSTANCE:->${planet.hashCode()}")
                    PrintUtils.printLog("PLANET:-> $planet")
                    PrintUtils.printLog("<------------------------------------>")
                }
            }
        }
    }
}