Kotlin migration and bug fixes

.github/workflows/android.yml

@@ -0,0 +1,30 @@
+name: Android CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+    - name: Fix gradlew permission
+      run: chmod +x gradlew
+    - name: Check
+      run: ./gradlew check --stacktrace
+    - name: Assemble
+      run: ./gradlew assembleDebug --stacktrace
+    - name: Upload APK
+      uses: actions/upload-artifact@v2
+      with:
+        name: app-debug.apk
+        path: app/build/outputs/apk/debug/app-debug.apk

app/build.gradle.kts

@@ -0,0 +1,106 @@
+plugins {
+    id("com.android.application")
+    kotlin("android")
+    kotlin("android.extensions")
+    kotlin("kapt")
+}
+
+val versionMajor = 1
+val versionMinor = 8
+val versionPatch = 2
+val versionBuild = 0
+
+android {
+    compileSdkVersion(30)
+    defaultConfig {
+        applicationId = "fr.smarquis.fcm"
+        minSdkVersion(16)
+        targetSdkVersion(30)
+        versionCode = versionMajor * 1000000 + versionMinor * 10000 + versionPatch * 100 + versionBuild
+        versionName = "$versionMajor.$versionMinor.$versionPatch"
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        multiDexEnabled = true
+
+        javaCompileOptions {
+            annotationProcessorOptions {
+                argument("room.schemaLocation", "$projectDir/schemas")
+                argument("room.incremental", "true")
+                argument("room.expandProjection", "true")
+            }
+        }
+    }
+    buildTypes {
+        getByName("release") {
+            isMinifyEnabled = true
+            proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
+        }
+    }
+    testOptions {
+        unitTests.isIncludeAndroidResources = true
+        unitTests.isReturnDefaultValues = true
+    }
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xopt-in=kotlin.RequiresOptIn"
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+}
+
+dependencies {
+    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.10")
+
+    /* AndroidX */
+    implementation("androidx.appcompat:appcompat:1.3.0-alpha02")
+    implementation("androidx.constraintlayout:constraintlayout:2.0.2")
+    implementation("androidx.core:core-ktx:1.5.0-alpha04")
+    implementation("androidx.lifecycle:lifecycle-livedata-ktx:2.2.0")
+    implementation("androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0")
+    implementation("androidx.preference:preference-ktx:1.1.1")
+    implementation("androidx.recyclerview:recyclerview:1.2.0-alpha06")
+    implementation("androidx.transition:transition:1.3.1")
+    androidTestImplementation("androidx.test.espresso:espresso-core:3.3.0")
+    androidTestImplementation("androidx.test.ext:junit:1.1.2")
+
+    /* Material Design */
+    implementation("com.google.android.material:material:1.3.0-alpha03")
+
+    /* Firebase */
+    implementation("com.google.firebase:firebase-core:17.5.1")
+    implementation("com.google.firebase:firebase-messaging:20.3.0")
+    implementation("com.google.firebase:firebase-database:19.5.1")
+
+    /* Koin: Dependency Injection */
+    val koin = "2.1.6"
+    implementation("org.koin:koin-android:$koin")
+    implementation("org.koin:koin-android-scope:$koin")
+    implementation("org.koin:koin-android-viewmodel:$koin")
+    testImplementation("org.koin:koin-test:$koin")
+    androidTestImplementation("org.koin:koin-test:$koin")
+
+    /* Moshi: JSON parsing */
+    val moshi = "1.11.0"
+    implementation("com.squareup.moshi:moshi-adapters:$moshi")
+    implementation("com.squareup.moshi:moshi-kotlin:$moshi")
+    kapt("com.squareup.moshi:moshi-kotlin-codegen:$moshi")
+
+    /* Room: SQLite persistence */
+    val room = "2.2.5"
+    implementation("androidx.room:room-runtime:$room")
+    kapt("androidx.room:room-compiler:$room")
+    implementation("androidx.room:room-ktx:$room")
+    testImplementation("androidx.room:room-testing:$room")
+
+    /* Kotlin Coroutines */
+    val coroutines = "1.4.0-M1"
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-play-services:$coroutines")
+
+    /* JUnit */
+    testImplementation("junit:junit:4.13.1")
+
+}
+
+apply(plugin = "com.google.gms.google-services")

app/src/main/java/fr/smarquis/fcm/data/model/Message.kt

@@ -1,10 +1,12 @@
 package fr.smarquis.fcm.data.model
 
+import androidx.annotation.Keep
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
 
 @Entity
+@Keep
 data class Message(
         @PrimaryKey
         @ColumnInfo(name = "messageId") val messageId: String,