Update from Dagger2.x to Android-Hilt.

Author: ahmedeltaher

app/build.gradle

@@ -3,10 +3,12 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlin-kapt'
 apply plugin: 'kotlin-platform-android'
+apply plugin: 'dagger.hilt.android.plugin'
+
 
 android {
-    compileSdkVersion rootProject.compileSdkVersion
-    buildToolsVersion '29.0.3'
+    compileSdkVersion 30
+    buildToolsVersion '30.0.2'
     defaultConfig {
         applicationId 'com.eltaher.task'
         minSdkVersion rootProject.minSdkVersion
@@ -59,6 +61,14 @@ android {
         pickFirst 'META-INF/kotlinx-coroutines-core.kotlin_module'
         pickFirst 'META-INF/kotlinx-coroutines-io.kotlin_module'
     }
+
+    configurations.all {
+        resolutionStrategy {
+            exclude group: "org.jetbrains.kotlinx", module: "kotlinx-coroutines-debug"
+
+        }
+    }
+
     testOptions {
         unitTests.returnDefaultValues = true
     }
@@ -79,7 +89,6 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     //kotlin
-    //implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlinVersion"
     implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlinVersion"
     implementation "androidx.annotation:annotation:$annotationVersion"
@@ -89,7 +98,6 @@ dependencies {
     //junit 5
     testImplementation "org.junit.jupiter:junit-jupiter-engine:$junitVersion"
     testImplementation "org.junit.jupiter:junit-jupiter-api:$junitVersion"
-
     testImplementation "org.junit.platform:junit-platform-runner:$junitRunnerVersion"
     androidTestImplementation "androidx.test.ext:junit:$androidXJunitVersion"
     androidTestImplementation "org.assertj:assertj-core:$assertjVersion"
@@ -111,20 +119,12 @@ dependencies {
     implementation "androidx.recyclerview:recyclerview:$recyclerviewVersion"
     implementation "androidx.appcompat:appcompat:$appcompatVersion"
     implementation "com.google.android.material:material:$materialVersion"
-    implementation "androidx.core:core-ktx:$coreKtxVersion"
+
     implementation "androidx.coordinatorlayout:coordinatorlayout:$coordinatorLayoutVersion"
     implementation "androidx.constraintlayout:constraintlayout:$constraintLayoutVersion"
     implementation "androidx.cardview:cardview:$cardViewVersion"
-    implementation "androidx.activity:activity:$activityVersion"
-    implementation "androidx.activity:activity-ktx:$activityKtxVersion"
 
-    //Dagger
-    implementation "com.google.dagger:dagger:$daggerVersion"
-    kapt "com.google.dagger:dagger-compiler:$daggerVersion"
-    implementation "com.google.dagger:dagger-android:$daggerVersion"
-    implementation "com.google.dagger:dagger-android-support:$daggerVersion"
-    kapt "com.google.dagger:dagger-android-processor:$daggerVersion"
-    kaptAndroidTest "com.google.dagger:dagger-compiler:$daggerVersion"
+
 
     //Logging
     implementation "com.squareup.okhttp3:logging-interceptor:$okhttpInterceptorVersion"
@@ -142,8 +142,6 @@ dependencies {
     //MultiDex
     implementation "androidx.multidex:multidex:$multiDexVersion"
 
-    //Mockk
-//    androidTestImplementation "io.mockk:mockk-android:$mockVersion"
     testImplementation "io.mockk:mockk:$mockVersion"
 
     //coroutines
@@ -152,4 +150,12 @@ dependencies {
     implementation "androidx.lifecycle:lifecycle-extensions:$lifecycleExtensionsVersion"
     implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycleKTXVersion"
     implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycleKTXVersion"
+    implementation "androidx.core:core-ktx:$coreKtxVersion"
+    implementation "androidx.activity:activity-ktx:$activityKtxVersion"
+
+    implementation 'com.google.dagger:hilt-android:2.31.2-alpha'
+    kapt 'com.google.dagger:hilt-android-compiler:2.31.2-alpha'
+}
+kapt {
+    correctErrorTypes true
 }

app/src/androidTest/java/com/task/AppTest.kt

@@ -1,8 +1,4 @@
 package com.task
-import com.task.di.DaggerTestAppComponent
 
 class AppTest: App() {
-    override fun initDagger() {
-        DaggerTestAppComponent.builder().application(this).build().inject(this)
-    }
 }

app/src/androidTest/java/com/task/di/TestAppComponent.kt

@@ -4,9 +4,12 @@ import com.task.TestDataRepository
 import com.task.data.DataRepositorySource
 import dagger.Binds
 import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
 import javax.inject.Singleton
 
 @Module
+@InstallIn(SingletonComponent::class)
 abstract class TestDataModule {
     @Binds
     @Singleton

app/src/androidTest/java/com/task/di/TestDataModule.kt

@@ -1,32 +1,18 @@
 package com.task
 
+import android.app.Application
 import android.content.Context
-import androidx.multidex.MultiDexApplication
-import com.task.di.DaggerAppComponent
-import dagger.android.AndroidInjector
-import dagger.android.DispatchingAndroidInjector
-import dagger.android.HasAndroidInjector
-import javax.inject.Inject
+import dagger.hilt.android.HiltAndroidApp
 
 /**
  * Created by AhmedEltaher
  */
-
-open class App : MultiDexApplication(), HasAndroidInjector {
-
-    @Inject
-    lateinit var androidInjector: DispatchingAndroidInjector<Any>
-
-    override fun androidInjector(): AndroidInjector<Any> = androidInjector
+@HiltAndroidApp
+open class App : Application() {
 
     override fun onCreate() {
         super.onCreate()
         context = applicationContext
-        initDagger()
-    }
-
-    open fun initDagger() {
-        DaggerAppComponent.builder().build().inject(this)
     }
 
     companion object {

app/src/main/java/com/task/App.kt

@@ -6,11 +6,14 @@ import com.task.utils.Network
 import com.task.utils.NetworkConnectivity
 import dagger.Module
 import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
 import kotlinx.coroutines.Dispatchers
 import javax.inject.Singleton
 import kotlin.coroutines.CoroutineContext
 
 @Module
+@InstallIn(SingletonComponent::class)
 class AppModule {
     @Provides
     @Singleton

app/src/main/java/com/task/di/ActivityModuleBuilder.kt

@@ -5,10 +5,13 @@ import com.task.data.DataRepository
 import com.task.data.DataRepositorySource
 import dagger.Binds
 import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
 import javax.inject.Singleton
 
 // Tells Dagger this is a Dagger module
 @Module
+@InstallIn(SingletonComponent::class)
 abstract class DataModule {
     @Binds
     @Singleton

app/src/main/java/com/task/di/AppComponent.kt

@@ -6,10 +6,13 @@ import com.task.usecase.errors.ErrorFactory
 import com.task.usecase.errors.ErrorManager
 import dagger.Binds
 import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
 import javax.inject.Singleton
 
 // with @Module we Telling Dagger that, this is a Dagger module
 @Module
+@InstallIn(SingletonComponent::class)
 abstract class ErrorModule {
     @Binds
     @Singleton