Fix Crash when Rotating from Portrait to Landscape Mode

app/build.gradle.kts

@@ -23,6 +23,8 @@ plugins {
     id("com.android.application")
     id("com.google.devtools.ksp")
     alias(libs.plugins.kotlin.serialization)
+    kotlin("kapt")
+    alias(libs.plugins.hilt.android)
     kotlin("android")
 }
 
@@ -34,8 +36,8 @@ android {
         applicationId = "org.eclipse.kuksa.companion"
         minSdk = 27
         targetSdk = 33
-        versionCode = 1
-        versionName = "1.0"
+        versionCode = rootProject.extra["projectVersionCode"].toString().toInt()
+        versionName = rootProject.extra["projectVersion"].toString()
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {
@@ -133,4 +135,12 @@ dependencies {
 
     debugImplementation(libs.androidx.compose.ui.tooling)
     debugImplementation(libs.androidx.compose.ui.tooling.test.manifest)
+
+    implementation(libs.hilt.android)
+    kapt(libs.hilt.android.compiler)
+}
+
+// Allow references to generated code
+kapt {
+    correctErrorTypes = true
 }

app/src/main/AndroidManifest.xml

@@ -23,6 +23,7 @@
     <uses-permission android:name="android.permission.INTERNET" />
 
     <application
+        android:name=".CompanionApplication"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"

app/src/main/kotlin/org/eclipse/kuksa/companion/CompanionApplication.kt

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2023 Contributors to the Eclipse Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ */
+
+package org.eclipse.kuksa.companion
+
+import android.app.Application
+import dagger.hilt.android.HiltAndroidApp
+
+@HiltAndroidApp
+class CompanionApplication : Application()

app/src/main/kotlin/org/eclipse/kuksa/companion/MainActivity.kt

@@ -27,6 +27,7 @@ import androidx.activity.viewModels
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.rememberNavController
+import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
 import org.eclipse.kuksa.DataBrokerConnection
@@ -65,10 +66,14 @@ import org.eclipse.kuksa.vss.VssStation
 import org.eclipse.kuksa.vss.VssTrunk
 import org.eclipse.kuksa.vsscore.annotation.VssDefinition
 import org.eclipse.kuksa.vsscore.model.VssSpecification
+import javax.inject.Inject
 
+@AndroidEntryPoint
 @VssDefinition("vss_rel_4.0.yaml")
 class MainActivity : ComponentActivity() {
-    private lateinit var connectionInfoRepository: ConnectionInfoRepository
+    @Inject
+    lateinit var connectionInfoRepository: ConnectionInfoRepository
+
     private lateinit var doorVehicleScene: DoorVehicleScene
 
     private val disconnectListener = DisconnectListener {
@@ -82,9 +87,7 @@ class MainActivity : ComponentActivity() {
     private val lightControlViewModel: LightControlViewModel by viewModels()
     private val wheelPressureViewModel: WheelPressureViewModel by viewModels()
 
-    private val settingsViewModel: SettingsViewModel by viewModels {
-        SettingsViewModel.Factory(connectionInfoRepository)
-    }
+    private val settingsViewModel: SettingsViewModel by viewModels()
 
     private var dataBrokerConnection: DataBrokerConnection? = null
     private val dataBrokerConnectorFactory = DataBrokerConnectorFactory()
@@ -172,8 +175,6 @@ class MainActivity : ComponentActivity() {
     override fun onPostCreate(savedInstanceState: Bundle?) {
         super.onPostCreate(savedInstanceState)
 
-        connectionInfoRepository = ConnectionInfoRepository(this)
-
         connectionStatusViewModel.onClickReconnect = {
             connectToDataBroker {
                 subscribe()

app/src/main/kotlin/org/eclipse/kuksa/companion/feature/connection/repository/ConnectionInfoRepository.kt

@@ -22,11 +22,17 @@ package org.eclipse.kuksa.companion.feature.connection.repository
 import android.content.Context
 import androidx.datastore.core.DataStore
 import androidx.datastore.dataStore
+import dagger.hilt.android.qualifiers.ApplicationContext
 import kotlinx.coroutines.flow.Flow
 import org.eclipse.kuksa.companion.feature.connection.model.ConnectionInfo
 import org.eclipse.kuksa.companion.feature.connection.model.ConnectionInfoSerializer
+import javax.inject.Inject
+import javax.inject.Singleton
 
-class ConnectionInfoRepository(context: Context) {
+@Singleton
+class ConnectionInfoRepository @Inject constructor(
+    @ApplicationContext context: Context,
+) {
 
     private val Context.dataStore: DataStore<ConnectionInfo> by dataStore(PREFERENCES_NAME, ConnectionInfoSerializer)
     private val dataStore = context.dataStore

app/src/main/kotlin/org/eclipse/kuksa/companion/feature/settings/viewModel/SettingsViewModel.kt

@@ -20,13 +20,15 @@
 package org.eclipse.kuksa.companion.feature.settings.viewModel
 
 import androidx.lifecycle.ViewModel
-import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
 import org.eclipse.kuksa.companion.feature.connection.model.ConnectionInfo
 import org.eclipse.kuksa.companion.feature.connection.repository.ConnectionInfoRepository
+import javax.inject.Inject
 
-class SettingsViewModel(
+@HiltViewModel
+class SettingsViewModel @Inject constructor(
     private val repository: ConnectionInfoRepository,
 ) : ViewModel() {
     val connectionInfoFlow = repository.connectionInfoFlow
@@ -36,13 +38,4 @@ class SettingsViewModel(
             repository.updateConnectionInfo(connectionInfo)
         }
     }
-
-    class Factory(
-        private val connectionInfoRepository: ConnectionInfoRepository,
-    ) : ViewModelProvider.Factory {
-        @Suppress("UNCHECKED_CAST")
-        override fun <T : ViewModel> create(modelClass: Class<T>): T {
-            return SettingsViewModel(connectionInfoRepository) as T
-        }
-    }
 }

build.gradle.kts

@@ -21,6 +21,8 @@ plugins {
     base
     detekt
     version
+    alias(libs.plugins.hilt.android) apply false
+    alias(libs.plugins.ksp) apply false
 }
 
 subprojects {

buildSrc/build.gradle.kts

@@ -38,4 +38,5 @@ dependencies {
     implementation(libs.android.gradlePlugin)
     implementation(libs.kotlin.gradlePlugin)
     implementation(libs.detekt.gradlePlugin)
+    implementation(libs.javapoet)
 }

gradle/libs.versions.toml

@@ -4,6 +4,8 @@ androidGradlePlugin = "8.1.4" # Check with detekt table first: https://detekt.de
 coreKtx = "1.12.0"
 datastore = "1.0.0"
 espressoCore = "3.5.1"
+hiltAndroid = "2.49"
+javapoet = "1.13.0"
 junitVersion = "1.1.5"
 junit = "4.13.2"
 kotlin = "1.9.20"
@@ -21,14 +23,17 @@ navigationCompose = "2.7.5"
 kotlinxSerializationJson = "1.6.1"
 constraintlayoutCompose = "1.0.1"
 kotlinSerializationPlugin = "1.9.20"
-devtoolsKsp = "1.9.20-1.0.14"
+ksp = "1.9.20-1.0.14"
 
 [libraries]
 androidx-core-ktx = { module = "androidx.core:core-ktx", version.ref = "coreKtx" }
 androidx-datastore = { module = "androidx.datastore:datastore", version.ref = "datastore" }
 androidx-espresso-core = { module = "androidx.test.espresso:espresso-core", version.ref = "espressoCore" }
 androidx-junit = { module = "androidx.test.ext:junit", version.ref = "junitVersion" }
 androidx-lifecycle-runtime-compose = { module = "androidx.lifecycle:lifecycle-runtime-compose", version.ref = "lifecycleRuntimeCompose" }
+hilt-android = { module = "com.google.dagger:hilt-android", version.ref = "hiltAndroid" }
+hilt-android-compiler = { module = "com.google.dagger:hilt-android-compiler", version.ref = "hiltAndroid" }
+javapoet = { module = "com.squareup:javapoet", version.ref = "javapoet" }
 junit = { module = "junit:junit", version.ref = "junit" }
 
 # app
@@ -60,3 +65,6 @@ detekt-formatting = { group = "io.gitlab.arturbosch.detekt", name = "detekt-form
 
 [plugins]
 kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlinSerializationPlugin" }
+hilt-android = { id = "com.google.dagger.hilt.android", version.ref = "hiltAndroid" }
+ksp = { id = "com.google.devtools.ksp", version.ref ="ksp"}
+

settings.gradle.kts

@@ -28,7 +28,6 @@ pluginManagement {
     }
 
     plugins {
-        id("com.google.devtools.ksp") version "1.9.20-1.0.14"
         id("de.fayard.refreshVersions") version "0.60.3"
     }
 }