diff --git a/tutorials/java/MapWithMarker/app/build.gradle b/tutorials/java/MapWithMarker/app/build.gradle
index 810404094..ca479a75a 100644
--- a/tutorials/java/MapWithMarker/app/build.gradle
+++ b/tutorials/java/MapWithMarker/app/build.gradle
@@ -4,15 +4,18 @@ plugins {
 }
 
 android {
-    compileSdkVersion 33
+    compileSdk 33
     defaultConfig {
         applicationId "com.example.mapwithmarker"
-        minSdkVersion 19
-        targetSdkVersion 33
+        minSdk 19
+        targetSdk 33
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
+    buildFeatures {
+        buildConfig = true
+    }
     buildTypes {
         release {
             minifyEnabled false
diff --git a/tutorials/java/MapWithMarker/app/src/main/AndroidManifest.xml b/tutorials/java/MapWithMarker/app/src/main/AndroidManifest.xml
index f36287212..737b23332 100644
--- a/tutorials/java/MapWithMarker/app/src/main/AndroidManifest.xml
+++ b/tutorials/java/MapWithMarker/app/src/main/AndroidManifest.xml
@@ -15,8 +15,7 @@
  limitations under the License.
 -->
 
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.mapwithmarker">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <application
         android:allowBackup="true"
diff --git a/tutorials/java/Polygons/app/build.gradle b/tutorials/java/Polygons/app/build.gradle
index 97954134f..d1c67ec9a 100644
--- a/tutorials/java/Polygons/app/build.gradle
+++ b/tutorials/java/Polygons/app/build.gradle
@@ -4,15 +4,18 @@ plugins {
 }
 
 android {
-    compileSdkVersion 33
+    compileSdk 33
     defaultConfig {
         applicationId "com.example.polygons"
-        minSdkVersion 19
-        targetSdkVersion 33
+        minSdk 21
+        targetSdk 33
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
+    buildFeatures {
+        buildConfig = true
+    }
     buildTypes {
         release {
             minifyEnabled false
@@ -25,7 +28,7 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'androidx.appcompat:appcompat:1.6.1'
-    implementation 'com.google.android.gms:play-services-maps:18.1.0'
+    implementation 'com.google.android.gms:play-services-maps:18.2.0'
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
diff --git a/tutorials/java/Polygons/app/src/main/AndroidManifest.xml b/tutorials/java/Polygons/app/src/main/AndroidManifest.xml
index 87cea73c8..fe5630f25 100644
--- a/tutorials/java/Polygons/app/src/main/AndroidManifest.xml
+++ b/tutorials/java/Polygons/app/src/main/AndroidManifest.xml
@@ -15,8 +15,7 @@
  limitations under the License.
 -->
 
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.polygons">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <application
         android:allowBackup="true"
diff --git a/tutorials/java/StyledMap/app/build.gradle b/tutorials/java/StyledMap/app/build.gradle
index 52c7589f8..a38acce09 100644
--- a/tutorials/java/StyledMap/app/build.gradle
+++ b/tutorials/java/StyledMap/app/build.gradle
@@ -1,31 +1,20 @@
-apply plugin: 'com.android.application'
-
-// Set the properties within `local.properties` into a `Properties` class so
-// that values within `local.properties` (e.g. Maps API key) are accessible in
-// this file.
-Properties properties = new Properties()
-if (rootProject.file("local.properties").exists()) {
-    properties.load(rootProject.file("local.properties").newDataInputStream())
+plugins {
+    id 'com.android.application'
+    id 'com.google.android.libraries.mapsplatform.secrets-gradle-plugin'
 }
-def mapsApiKey = properties.getProperty("MAPS_API_KEY", "")
 
 android {
-    compileSdkVersion 33
+    compileSdk 33
     defaultConfig {
         applicationId "com.example.styledmap"
-        minSdkVersion 19
-        targetSdkVersion 33
+        minSdk 21
+        targetSdk 33
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-
-        // Read the API key from local.properties into R.string.maps_api_key
-        resValue "string", "maps_api_key", mapsApiKey
-
-        // To add your Maps API key to this project:
-        // 1. Open the root project's local.properties file
-        // 2. Add this line, where YOUR_API_KEY is your API key:
-        //        MAPS_API_KEY=YOUR_API_KEY
+    }
+    buildFeatures {
+        buildConfig = true
     }
     buildTypes {
         release {
@@ -33,14 +22,28 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
     namespace "com.example.styledmap"
 }
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'androidx.appcompat:appcompat:1.6.1'
-    implementation 'com.google.android.gms:play-services-maps:18.1.0'
+    implementation 'com.google.android.gms:play-services-maps:18.2.0'
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
 }
+
+secrets {
+    // Optionally specify a different file name containing your secrets.
+    // The plugin defaults to "local.properties"
+    propertiesFileName = "secrets.properties"
+
+    // A properties file containing default secret values. This file can be
+    // checked in version control.
+    defaultPropertiesFileName = 'local.defaults.properties'
+}
\ No newline at end of file
diff --git a/tutorials/java/StyledMap/app/src/main/AndroidManifest.xml b/tutorials/java/StyledMap/app/src/main/AndroidManifest.xml
index 51a222daf..44a59296f 100644
--- a/tutorials/java/StyledMap/app/src/main/AndroidManifest.xml
+++ b/tutorials/java/StyledMap/app/src/main/AndroidManifest.xml
@@ -15,8 +15,7 @@
  limitations under the License.
 -->
 
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.styledmap">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <application
         android:allowBackup="true"
@@ -34,7 +33,7 @@
         -->
         <meta-data
             android:name="com.google.android.geo.API_KEY"
-            android:value="@string/maps_api_key" />
+            android:value="${MAPS_API_KEY}" />
 
         <activity android:name=".MapsActivityRaw"
             android:exported="true"
diff --git a/tutorials/java/StyledMap/local.defaults.properties b/tutorials/java/StyledMap/local.defaults.properties
new file mode 100644
index 000000000..b46923660
--- /dev/null
+++ b/tutorials/java/StyledMap/local.defaults.properties
@@ -0,0 +1 @@
+MAPS_API_KEY=STUB_API_KEY
diff --git a/tutorials/kotlin/CurrentPlaceDetailsOnMap/app/build.gradle b/tutorials/kotlin/CurrentPlaceDetailsOnMap/app/build.gradle
index 6ec3034b0..8d48f5992 100644
--- a/tutorials/kotlin/CurrentPlaceDetailsOnMap/app/build.gradle
+++ b/tutorials/kotlin/CurrentPlaceDetailsOnMap/app/build.gradle
@@ -5,15 +5,18 @@ plugins {
 }
 
 android {
-    compileSdkVersion 33
+    compileSdk 33
     defaultConfig {
         applicationId "com.example.currentplacedetailsonmap"
-        minSdkVersion 21
-        targetSdkVersion 33
+        minSdk 21
+        targetSdk 33
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
+    buildFeatures {
+        buildConfig = true
+    }
     buildTypes {
         debug {
             debuggable true
@@ -23,6 +26,10 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
     namespace 'com.example.currentplacedetailsonmap'
 }
 
@@ -42,10 +49,10 @@ dependencies {
 }
 
 secrets {
-    defaultPropertiesFileName 'local.defaults.properties'
     // To add your Maps API key to this project:
     // 1. Open the root project's local.properties file
     // 2. Add this line, where YOUR_API_KEY is your API key:
     //        MAPS_API_KEY=YOUR_API_KEY
+    defaultPropertiesFileName 'local.defaults.properties'
 }
 
diff --git a/tutorials/kotlin/MapWithMarker/app/build.gradle b/tutorials/kotlin/MapWithMarker/app/build.gradle
index e440c231e..4dd44e6a1 100644
--- a/tutorials/kotlin/MapWithMarker/app/build.gradle
+++ b/tutorials/kotlin/MapWithMarker/app/build.gradle
@@ -5,22 +5,28 @@ plugins {
 }
 
 android {
-    compileSdkVersion 33
-    buildToolsVersion "30.0.3"
+    compileSdk 33
     defaultConfig {
         applicationId "com.example.mapwithmarker"
-        minSdkVersion 19
-        targetSdkVersion 33
+        minSdk 19
+        targetSdk 33
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
+    buildFeatures {
+        buildConfig = true
+    }
     buildTypes {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
     namespace "com.example.mapwithmarker"
 }
 
@@ -38,9 +44,9 @@ dependencies {
 }
 
 secrets {
-    defaultPropertiesFileName 'local.defaults.properties'
     // To add your Maps API key to this project:
     // 1. Open the root project's local.properties file
     // 2. Add this line, where YOUR_API_KEY is your API key:
     //        MAPS_API_KEY=YOUR_API_KEY
+    defaultPropertiesFileName 'local.defaults.properties'
 }
diff --git a/tutorials/kotlin/MapWithMarker/app/src/main/AndroidManifest.xml b/tutorials/kotlin/MapWithMarker/app/src/main/AndroidManifest.xml
index 7a63ca3db..3b738158d 100644
--- a/tutorials/kotlin/MapWithMarker/app/src/main/AndroidManifest.xml
+++ b/tutorials/kotlin/MapWithMarker/app/src/main/AndroidManifest.xml
@@ -15,8 +15,7 @@
  limitations under the License.
 -->
 
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.mapwithmarker">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <application
         android:allowBackup="true"
diff --git a/tutorials/kotlin/Polygons/app/build.gradle b/tutorials/kotlin/Polygons/app/build.gradle
index 5b1163fbf..235ba2bbc 100644
--- a/tutorials/kotlin/Polygons/app/build.gradle
+++ b/tutorials/kotlin/Polygons/app/build.gradle
@@ -5,21 +5,28 @@ plugins {
 }
 
 android {
-    compileSdkVersion 33
+    compileSdk 33
     defaultConfig {
         applicationId "com.example.polygons"
-        minSdkVersion 19
-        targetSdkVersion 33
+        minSdk 21
+        targetSdk 33
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
+    buildFeatures {
+        buildConfig = true
+    }
     buildTypes {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
     namespace "com.example.polygons"
 }
 
@@ -35,9 +42,9 @@ dependencies {
 }
 
 secrets {
-    defaultPropertiesFileName 'local.defaults.properties'
     // To add your Maps API key to this project:
     // 1. Open the root project's local.properties file
     // 2. Add this line, where YOUR_API_KEY is your API key:
     //        MAPS_API_KEY=YOUR_API_KEY
+    defaultPropertiesFileName 'local.defaults.properties'
 }
diff --git a/tutorials/kotlin/Polygons/app/src/main/AndroidManifest.xml b/tutorials/kotlin/Polygons/app/src/main/AndroidManifest.xml
index 87cea73c8..fe5630f25 100644
--- a/tutorials/kotlin/Polygons/app/src/main/AndroidManifest.xml
+++ b/tutorials/kotlin/Polygons/app/src/main/AndroidManifest.xml
@@ -15,8 +15,7 @@
  limitations under the License.
 -->
 
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.polygons">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <application
         android:allowBackup="true"