Adds RoomDB and rxjava3 dependencies.

Android/.idea/compiler.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="CompilerConfiguration">
-    <bytecodeTargetLevel target="16" />
+    <bytecodeTargetLevel target="1.8" />
   </component>
 </project>

Android/.idea/misc.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

Android/app/build.gradle

@@ -1,4 +1,18 @@
-apply plugin: 'com.android.application'
+plugins {
+    id 'com.android.application'
+    id 'androidx.navigation.safeargs'
+}
+
+Properties properties = new Properties()
+def propertiesFile = project.rootProject.file('local.properties')
+if (propertiesFile.exists()) {
+    properties.load(propertiesFile.newDataInputStream())
+}
+def appCenterLocalSecret = properties.getProperty('appCenter.localSecret')
+def appCenterEnvSecret = System.getenv('APPCENTER_SECRET')
+def appCenterSecret = appCenterLocalSecret != null ? appCenterLocalSecret : appCenterEnvSecret != null ? appCenterEnvSecret : ""
+def appCenterSdkVersion = '3.3.0'
+def nav_version = "2.3.0"
 
 android {
     compileSdkVersion 30
@@ -10,29 +24,67 @@ android {
         targetSdkVersion 30
         versionCode 1
         versionName "1.0"
+        buildConfigField "String", "APPCENTER_SECRET", "\"${appCenterSecret}\""
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+
+        javaCompileOptions {
+            annotationProcessorOptions {
+                arguments += ["room.schemaLocation": "$projectDir/schemas".toString()]
+            }
+        }
     }
 
     buildTypes {
         release {
-            minifyEnabled false
+            // Enables code shrinking, obfuscation, and optimization for only
+            // your project's release build type.
+            minifyEnabled true
+
+            // Enables resource shrinking, which is performed by the
+            // Android Gradle plugin.
+            shrinkResources true
+
+            // Includes the default ProGuard rules files that are packaged with
+            // the Android Gradle plugin. To learn more, go to the section about
+            // R8 configuration files.
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 dependencies {
+    implementation "com.microsoft.appcenter:appcenter-analytics:${appCenterSdkVersion}"
+    implementation "com.microsoft.appcenter:appcenter-crashes:${appCenterSdkVersion}"
+
     implementation fileTree(dir: "libs", include: ["*.jar"])
     implementation 'androidx.appcompat:appcompat:1.2.0'
-    implementation 'com.google.android.material:material:1.2.0'
+    implementation 'com.google.android.material:material:1.3.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.1'
-    implementation 'androidx.navigation:navigation-fragment:2.3.0'
-    implementation 'androidx.navigation:navigation-ui:2.3.0'
+    implementation "androidx.navigation:navigation-fragment:$nav_version"
+    implementation "androidx.navigation:navigation-ui:$nav_version"
     implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
     implementation 'com.atlassian.commonmark:commonmark:0.15.2'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
 
+    def room_version = "2.3.0-rc01"
+    def rxjava_version = "3.0.0"
+
+    implementation "io.reactivex.rxjava3:rxjava:$rxjava_version"
+    implementation "io.reactivex.rxjava3:rxandroid:$rxjava_version"
+    implementation "androidx.room:room-runtime:$room_version"
+    annotationProcessor "androidx.room:room-compiler:$room_version"
+
+    // optional - RxJava3 support for Room
+    implementation "androidx.room:room-rxjava3:$room_version"
+
+    // optional - Test helpers
+    //testImplementation "androidx.room:room-testing:$room_version"
+
 }

Android/build.gradle

@@ -19,6 +19,8 @@ allprojects {
     repositories {
         google()
         jcenter()
+        // maven { url "https://oss.jfrog.org/libs-snapshot" }
+        // maven { url 'http://repo1.maven.org/maven2' }
     }
 }