Anahí Salgado@anncode

Inyección de DependenciasDagger Hilt

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Dagger

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Inyección de Dependencias

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Inyección de Dependencias

Para que un objeto exista necesita la existencia de otro u otros

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Inyección de Dependencias

Para que un objeto exista necesita la existencia de otro u otros

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Inyección de dependencias

Agenda

✔

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Inyección de dependencias

Agenda- Contact

✔

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Inyección de dependencias

Agenda- contacts: List<Contact>- type: String

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Contact- name: String- phone: String

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Inyección de dependencias

Agenda- contacts: List<Contact>- type: String

✔

Contact- name: String- phone: StringPara que un objeto exista

necesita la existencia de otro u otros @anncode

Inyección de dependenciaAgendaFriends

✔

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Inyección de dependenciaAgendaFriends

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AgendaFamily

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Inyección de dependenciaAgendaFriends

✔

AgendaFamily

AgendaTeamWork

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Inyección de Dependencias

Tratamos que los objetos no dependan tanto entre ellos para hacer más flexible los sistemas

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Inyección de dependencias

data class Agenda(val type: String, val contacts: List<Contact>)

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Inyección de dependencias

data class Agenda(val type: String, val contacts: List<Contact>)

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Inyección de dependencias

data class Agenda(val type: String, val contacts: List<Contact>)

✔

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Inyección de dependencias

data class Agenda(val type: String, val contacts: List<Contact>)

✔Inyectar

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Inyección de Dependencias

Reutilización de código

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Inyección de dependencias

data class Agenda(val type: String, val contacts: List<Contact>)

✔

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Dagger

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DaggerKoin

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DaggerKoin

Dagger Hilt@anncode

Dagger Hilt

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Dagger Hiltapply plugin: 'kotlin-kapt' build.gradle(:app)

apply plugin: 'dagger.hilt.android.plugin'

dependencies { def hilt_version = "2.28-alpha"

// Dagger Hilt implementation "com.google.dagger:hilt-android:$hilt_version" kapt "com.google.dagger:hilt-android-compiler:$hilt_version"

}

dependencies { build.gradle(project) classpath "com.google.dagger:hilt-android-gradle-plugin:$hilt_version"

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Dagger Hilt

@HiltAndroidAppopen class MyApplication: Application()

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Dagger Hilt

@HiltAndroidAppopen class MyApplication: Application()

AndroidManifest.xml

<application android:name=".MyApplication"

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Dagger Hilt

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Dagger Hilt

fun provideListContacts(): List<Contact> {

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Dagger Hilt

@Providesfun provideListContacts(): List<Contact> {

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Dagger Hilt

@Providesfun provideListContacts(): List<Contact> {

@Providesfun providesAgenda(contacts: List<Contact>): Agenda

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Dagger Hilt

class AgendaModule {

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Dagger Hilt

class AgendaModule {

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Dagger Hilt

@Moduleclass AgendaModule {

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Dagger Hilt

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Dagger Hilt

@Moduleclass AgendaModule {

Scope

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Dagger Hilt

@Module@InstallIn(ApplicationComponent::class)class AgendaModule {

Scope

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Dagger Hilt@Module@InstallIn(ApplicationComponent::class)class AgendaModule {

ApplicationComponentApplication

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Dagger Hilt@Module@InstallIn(ServiceComponent::class)class AgendaModule {

ApplicationComponentApplication

ServiceComponentService

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Dagger Hilt@Module@InstallIn(ActivityRetainedComponent::class)class AgendaModule {

ApplicationComponentApplication

ServiceComponentService

ActivityRetainedComponentViewModel

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Dagger Hilt@Module@InstallIn(ActivityComponent::class)class AgendaModule {

ApplicationComponentApplication

ServiceComponentService

ActivityComponentActivity

ActivityRetainedComponentViewModel

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Dagger Hilt@Module@InstallIn(ViewComponent::class)class AgendaModule {

ApplicationComponentApplication

ServiceComponentService

ActivityComponentActivity

ViewComponent

View

ViewComponent

View

ActivityRetainedComponentViewModel

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Dagger Hilt@Module@InstallIn(FragmentComponent::class)class AgendaModule {

ApplicationComponentApplication

ServiceComponentService

ActivityComponentActivity

ViewComponent

View

ViewComponent

View

FragmentComponentFragment

FragmentComponentFragment

ActivityRetainedComponentViewModel

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Dagger Hilt ApplicationComponentApplication

ServiceComponentService

ActivityComponentActivity

ViewComponent

View

ViewComponent

View

FragmentComponentFragment

FragmentComponentFragment

ActivityRetainedComponentViewModel

@Module@InstallIn(ViewWithFragmentComponent::class)class AgendaModule {

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Dagger Hilt@Module@InstallIn(ViewWithFragmentComponent::class)class AgendaModule {

ApplicationComponentApplication

ServiceComponentService

ActivityComponentActivity

ViewComponent

View

ViewComponent

View

FragmentComponentFragment

FragmentComponentFragment

ViewWithFragment

ComponentViewFragment

ActivityRetainedComponentViewModel

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Dagger Hilt

@Module@InstallIn(ApplicationComponent::class)class AgendaModule {

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Dagger Hilt

@AndroidEntryPointclass MainActivity : AppCompatActivity() {

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Dagger Hilt

@AndroidEntryPointclass MainActivity : AppCompatActivity() {

ActivityFragmentViewServiceBroadcast Receiver

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Dagger Hilt

@AndroidEntryPointclass MainActivity : AppCompatActivity() {

@Inject lateinit var contacts: List<Contact>

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Dagger Hilt

@AndroidEntryPointclass MainActivity : AppCompatActivity() {

@Inject lateinit var contacts: List<Contact>

@Inject lateinit var agenda: Agenda

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Dagger Hilt@Inject lateinit var contacts: List<Contact>

override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) contacts.forEach {

}}

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ApiService Repository

Data layer

UseCase

Domain layer

ViewModel ActivityFragment

Presentation layer

Arquitectura

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ApiService Repository

Data layer

UseCase

Domain layer

ViewModel ActivityFragment

Presentation layer

NetworkModule

provideApiService

RepositoryModule

provideXRepository

Arquitectura

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ApiService Repository

Data layer

NetworkModule

provideApiService

RepositoryModule

provideXRepository

Arquitectura

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ApiService Repository

Data layer

UseCase

Domain layer

ViewModel ActivityFragment

Presentation layer

NetworkModule

provideApiService

RepositoryModule

provideXRepository

Arquitectura

UseCaseModule

provideXUseCase

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Arquitectura

UseCase

Domain layer

UseCaseModule

provideXUseCase

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ApiService Repository

Data layer

UseCase

Domain layer

ViewModel ActivityFragment

Presentation layer

NetworkModule

provideApiService

RepositoryModule

provideXRepository

Arquitectura

UseCaseModule

provideXUseCase

ViewModelModule

provideXViewModel

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Arquitectura

ViewModel ActivityFragment

Presentation layer

ViewModelModule

provideXViewModel

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Dagger Hilt

class MainViewModel @ViewModelInject constructor( private val getCatRandomFact: GetCatRandomFact

): ViewModel() {

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Dagger Hilt

class MainViewModel @ViewModelInject constructor( private val getCatRandomFact: GetCatRandomFact

): ViewModel() {

class Factory( private val getCatRandomFact: GetCatRandomFact): ViewModelProvider.Factory {

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Dagger Hilt

class MainViewModel @ViewModelInject constructor( private val getCatRandomFact: GetCatRandomFact

): ViewModel() {

class Factory( private val getCatRandomFact: GetCatRandomFact): ViewModelProvider.Factory {

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Dagger Hilt

class MyWorkerModel @WorkerInject constructor( @Assited context: Context

): Worker() {

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Dagger Hilt

class MyWorkerModel @WorkerInject constructor( @Assited context: Context

): Worker() {

class Factory(): WorkerFactory {

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Dagger Hilt

class MyWorkerModel @WorkerInject constructor( @Assited context: Context

): Worker() {

class Factory(): WorkerFactory {

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https://medium.com/androiddevelopers/dependency-injection-on-android-with-hilt-67

b6031e62d@anncode

https://medium.com/androiddevelopers/dependency-injection-on-android-with-hilt-67

b6031e62d@anncode

https://medium.com/androiddevelopers/dependency-injection-on-android-with-hilt-67

b6031e62d@anncode

Anahí Salgado@anncode