feature TI-193: [Android] Реализовать ViewModel Factory

app/build.gradle.kts

@@ -1,8 +1,5 @@
 plugins {
     id(Plugins.ANDROID_APP_PLUGIN_WITH_DEFAULT_CONFIG)
-    id(libs.plugins.android.application.get().pluginId)
-    id(libs.plugins.kotlin.android.get().pluginId)
-    id(libs.plugins.kotlin.kapt.get().pluginId)
     alias(libs.plugins.google.services)
     alias(libs.plugins.firebase.crashlytics)
     alias(libs.plugins.firebase.perf)

app/src/main/java/ru/touchin/template/App.kt

@@ -1,5 +1,18 @@
 package ru.touchin.template
 
 import android.app.Application
+import ru.touchin.template.di.DI
+import ru.touchin.template.di.SharedComponent
+import ru.touchin.template.di.SharedComponentProvider
 
-class App : Application()
+class App : Application(), SharedComponentProvider {
+
+    override fun onCreate() {
+        super.onCreate()
+
+        DI.init(applicationContext)
+        DI.getComponent().inject(this)
+    }
+
+    override fun getModule(): SharedComponent = DI.getComponent()
+}

app/src/main/java/ru/touchin/template/SingleViewModel.kt

@@ -0,0 +1,6 @@
+package ru.touchin.template
+
+import androidx.lifecycle.ViewModel
+import javax.inject.Inject
+
+class SingleViewModel @Inject constructor() : ViewModel()

app/src/main/java/ru/touchin/template/base/activity/BaseActivity.kt

@@ -0,0 +1,12 @@
+package ru.touchin.template.base.activity
+
+import androidx.appcompat.app.AppCompatActivity
+import ru.touchin.template.di.SharedComponent
+import ru.touchin.template.di.getSharedModule
+
+class BaseActivity : AppCompatActivity() {
+
+    protected val viewModelFactory by lazy { getSharedComponent().viewModelFactory() }
+
+    protected fun getSharedComponent(): SharedComponent = getSharedModule()
+}

app/src/main/java/ru/touchin/template/base/fragment/BaseFragment.kt

@@ -0,0 +1,12 @@
+package ru.touchin.template.base.fragment
+
+import androidx.fragment.app.Fragment
+import ru.touchin.template.di.SharedComponent
+import ru.touchin.template.di.getSharedModule
+
+class BaseFragment : Fragment() {
+
+    protected val viewModelFactory by lazy { getSharedComponent().viewModelFactory() }
+
+    protected fun getSharedComponent(): SharedComponent = getSharedModule()
+}

app/src/main/java/ru/touchin/template/di/AppComponent.kt

@@ -0,0 +1,30 @@
+package ru.touchin.template.di
+
+import android.content.Context
+import dagger.BindsInstance
+import dagger.Component
+import javax.inject.Singleton
+import ru.touchin.template.App
+import ru.touchin.template.di.modules.AppModule
+import ru.touchin.template.di.modules.ViewModelModule
+
+@Component(
+        modules = [
+            AppModule::class,
+            ViewModelModule::class
+        ]
+)
+@Singleton
+interface AppComponent : SharedComponent {
+
+    @Component.Builder
+    interface Builder {
+
+        @BindsInstance
+        fun appContext(appContext: Context): Builder
+
+        fun build(): AppComponent
+    }
+
+    fun inject(entry: App)
+}

app/src/main/java/ru/touchin/template/di/DI.kt

@@ -0,0 +1,16 @@
+package ru.touchin.template.di
+
+import android.content.Context
+
+object DI {
+
+    private lateinit var appComponent: AppComponent
+
+    fun init(context: Context) {
+        appComponent = DaggerAppComponent.builder()
+                .appContext(context)
+                .build()
+    }
+
+    fun getComponent(): AppComponent = appComponent
+}

app/src/main/java/ru/touchin/template/di/SharedComponentExt.kt

@@ -0,0 +1,17 @@
+package ru.touchin.template.di
+
+import android.app.Activity
+import android.content.Context
+import androidx.fragment.app.Fragment
+
+fun Context.getSharedModule(): SharedComponent {
+    return (applicationContext as SharedComponentProvider).getModule()
+}
+
+fun Activity.getSharedModule(): SharedComponent {
+    return (applicationContext as SharedComponentProvider).getModule()
+}
+
+fun Fragment.getSharedModule(): SharedComponent {
+    return requireContext().getSharedModule()
+}

app/src/main/java/ru/touchin/template/di/SharedComponentProvider.kt

@@ -0,0 +1,15 @@
+package ru.touchin.template.di
+
+import dagger.Module
+import ru.touchin.template.di.viewmodel.ViewModelFactory
+
+interface SharedComponent {
+    fun viewModelFactory(): ViewModelFactory
+}
+
+@Module
+class SharedModule
+
+interface SharedComponentProvider {
+    fun getModule(): SharedComponent
+}

app/src/main/java/ru/touchin/template/di/modules/AppModule.kt

@@ -0,0 +1,11 @@
+package ru.touchin.template.di.modules
+
+import dagger.Module
+
+@Module(
+        includes = [
+            RepositoryModule::class,
+            NetworkModule::class
+        ]
+)
+class AppModule

app/src/main/java/ru/touchin/template/di/modules/NetworkModule.kt

@@ -0,0 +1,7 @@
+package ru.touchin.template.di.modules
+
+import dagger.Module
+
+@Module
+class NetworkModule {
+}

app/src/main/java/ru/touchin/template/di/modules/RepositoryModule.kt

@@ -0,0 +1,7 @@
+package ru.touchin.template.di.modules
+
+import dagger.Module
+
+@Module
+class RepositoryModule {
+}

app/src/main/java/ru/touchin/template/di/modules/ViewModelModule.kt

@@ -0,0 +1,22 @@
+package ru.touchin.template.di.modules
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import dagger.Binds
+import dagger.Module
+import dagger.multibindings.IntoMap
+import ru.touchin.template.SingleViewModel
+import ru.touchin.template.di.viewmodel.ViewModelFactory
+import ru.touchin.template.di.viewmodel.ViewModelKey
+
+@Module
+interface ViewModelModule {
+
+    @Binds
+    fun bindViewModelFactory(factory: ViewModelFactory): ViewModelProvider.Factory
+
+    @Binds
+    @IntoMap
+    @ViewModelKey(SingleViewModel::class)
+    fun bindsSingleViewModel(viewModel: SingleViewModel): ViewModel
+}

app/src/main/java/ru/touchin/template/di/viewmodel/ViewModelFactory.kt

@@ -0,0 +1,17 @@
+package ru.touchin.template.di.viewmodel
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import javax.inject.Inject
+import javax.inject.Provider
+
+class ViewModelFactory @Inject constructor(
+        private val viewModels: MutableMap<Class<out ViewModel>, Provider<ViewModel>>
+) : ViewModelProvider.Factory {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel> create(modelClass: Class<T>): T {
+        val viewModel = viewModels[modelClass]?.get()
+        return viewModel as T
+    }
+}

app/src/main/java/ru/touchin/template/di/viewmodel/ViewModelKey.kt

@@ -0,0 +1,9 @@
+package ru.touchin.template.di.viewmodel
+
+import androidx.lifecycle.ViewModel
+import dagger.MapKey
+import kotlin.reflect.KClass
+
+@Target(AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER, AnnotationTarget.PROPERTY_SETTER)
+@MapKey
+annotation class ViewModelKey(val value: KClass<out ViewModel>)

common-template

@@ -0,0 +1 @@
+Subproject commit d6f303bf879a2da1706cfdacaf2bbe0c326044bd