fix(in_app_messaging,android): bump the example Gradle toolchain

The example could not assemble on current Flutter (Gradle 8.14 / AGP 8.11). Export in-app messaging artifacts as api so app Java compilation can resolve FirebaseInAppMessagingDisplay.

Author: SelaseKay

packages/firebase_in_app_messaging/firebase_in_app_messaging/android/build.gradle

@@ -79,7 +79,10 @@ android {
     dependencies {
       api firebaseCoreProject
       implementation platform("com.google.firebase:firebase-bom:${getRootProjectExtOrCoreProperty("FirebaseSDKVersion", firebaseCoreProject)}")
-      implementation 'com.google.firebase:firebase-inappmessaging-display'
+      // `api` so app Java compilation can resolve FirebaseInAppMessagingDisplay,
+      // which the plugin class implements.
+      api 'com.google.firebase:firebase-inappmessaging'
+      api 'com.google.firebase:firebase-inappmessaging-display'
       implementation 'androidx.annotation:annotation:1.7.0'
     }
 }

packages/firebase_in_app_messaging/firebase_in_app_messaging/example/android/app/build.gradle

@@ -41,7 +41,7 @@ android {
         applicationId = "io.flutter.plugins.firebase.tests"
         // You can update the following values to match your application needs.
         // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
-        minSdk = 23
+        minSdkVersion = flutter.minSdkVersion
         targetSdk = flutter.targetSdkVersion
         versionCode = flutterVersionCode.toInteger()
         versionName = flutterVersionName

packages/firebase_in_app_messaging/firebase_in_app_messaging/example/android/gradle.properties

@@ -1,4 +1,8 @@
 org.gradle.jvmargs=-Xmx4G -XX:+HeapDumpOnOutOfMemoryError
 android.useAndroidX=true
 android.enableJetifier=true
-androidGradlePluginVersion=8.3.0
+androidGradlePluginVersion=8.11.1
+# This builtInKotlin flag was added automatically by Flutter migrator
+android.builtInKotlin=false
+# This newDsl flag was added automatically by Flutter migrator
+android.newDsl=false

packages/firebase_in_app_messaging/firebase_in_app_messaging/example/android/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

packages/firebase_in_app_messaging/firebase_in_app_messaging/example/android/settings.gradle

@@ -18,7 +18,7 @@ pluginManagement {
 
 plugins {
     id "dev.flutter.flutter-plugin-loader" version "1.0.0"
-    id "com.android.application" version "${androidGradlePluginVersion}" apply false
+    id "com.android.application" version "8.11.1" apply false
     // START: FlutterFire Configuration
     id "com.google.gms.google-services" version "4.3.15" apply false
     // END: FlutterFire Configuration