chore: update android build recipe

android/build.gradle

@@ -2,7 +2,6 @@
 
 buildscript {
     ext {
-        
         versionMajor = 1
         versionMinor = 0
         versionPatch = 1
@@ -11,20 +10,21 @@ buildscript {
         versionCodeOverride = System.getenv('VERSION_CODE_OVERRIDE') ? System.getenv('VERSION_CODE_OVERRIDE').toInteger() : null
         releaseChannel = System.getenv('RELEASE_CHANNEL')
         releaseAppIdSuffix = System.getenv('RELEASE_APP_ID_SUFFIX')
-        
-        buildToolsVersion = "29.0.3"
+
+        buildToolsVersion = '29.0.3'
         minSdkVersion = 23
-        compileSdkVersion = 29
+        compileSdkVersion = 31
         targetSdkVersion = 29
         osmdroidVersion = '6.0.1'
-        supportLibVersion = "28.0.0"
-        ndkVersion = "20.1.5948944"
+        supportLibVersion = '28.0.0'
+        ndkVersion = '20.1.5948944'
+        kotlinVersion = '1.6.0'
     }
     repositories {
         google()
         jcenter()
         mavenCentral()
-        maven { url "https://jitpack.io" }
+        maven { url 'https://jitpack.io' }
         maven {
           // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
           url "$rootDir/../node_modules/react-native/android"
@@ -33,8 +33,8 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:4.1.0'
 
-        // NOTE: Do not place your application dependencies here; they belong
-        // in the individual module build.gradle files
+    // NOTE: Do not place your application dependencies here; they belong
+    // in the individual module build.gradle files
     }
 }
 
@@ -44,19 +44,34 @@ allprojects {
         jcenter()
         mavenLocal()
         maven {
-            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
-            url "$rootDir/../node_modules/react-native/android"
+      // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
+      url "$rootDir/../node_modules/react-native/android"
         }
         maven {
-            // Android JSC is installed from npm
-            url("$rootDir/../node_modules/jsc-android/dist")
+      // Android JSC is installed from npm
+      url("$rootDir/../node_modules/jsc-android/dist")
         }
+      exclusiveContent {
+        // We get React Native's Android binaries exclusively through npm,
+        // from a local Maven repo inside node_modules/react-native/.
+        // (The use of exclusiveContent prevents looking elsewhere like Maven Central
+        // and potentially getting a wrong version.)
+        filter {
+          includeGroup 'com.facebook.react'
+        }
+        forRepository {
+          maven {
+            // NOTE: if you are in a monorepo, you may have "$rootDir/../../../node_modules/react-native/android"
+            url "$rootDir/../node_modules/react-native/android"
+          }
+        }
+      }
     }
 }
 
 subprojects {
-  afterEvaluate {project ->
-    if (project.hasProperty("android")) {
+  afterEvaluate { project ->
+    if (project.hasProperty('android')) {
       android {
         compileOptions.encoding = 'utf-8'
         compileSdkVersion rootProject.ext.compileSdkVersion
@@ -72,4 +87,4 @@ subprojects {
 // task wrapper(type: Wrapper) {
 //     gradleVersion = '4.10'
 //     distributionUrl = distributionUrl.replace("bin", "all")
-// }
+// }

containers/ci/Dockerfile

@@ -10,7 +10,7 @@ ENV PATH=${PATH}:/usr/local/go/bin/:${ANDROID_HOME}/tools:${ANDROID_HOME}/tools/
 
 # Install utilities
 RUN apt-get update -y \
-  && apt-get install -y wget curl tar build-essential ca-certificates git openjdk-8-jdk-headless unzip locales jq moreutils
+  && apt-get install -y wget curl tar build-essential ca-certificates git openjdk-11-jdk-headless unzip locales jq moreutils
 
 # Set locale
 RUN locale-gen en_US.UTF-8