Migrate to applying Gradle plugins with the declarative plugins block

Author: TimHoogstrate

google_api_availability/example/android/app/build.gradle

@@ -1,3 +1,8 @@
+plugins {
+    id "com.android.application"
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
@@ -6,11 +11,6 @@ if (localPropertiesFile.exists()) {
     }
 }
 
-def flutterRoot = localProperties.getProperty('flutter.sdk')
-if (flutterRoot == null) {
-    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
-}
-
 def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
 if (flutterVersionCode == null) {
     flutterVersionCode = '1'
@@ -21,9 +21,6 @@ if (flutterVersionName == null) {
     flutterVersionName = '1.0'
 }
 
-apply plugin: 'com.android.application'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
-
 android {
     namespace 'com.baseflow.googleapiavailabilityexample'
     compileSdkVersion flutter.compileSdkVersion

google_api_availability/example/android/build.gradle

@@ -1,14 +1,3 @@
-buildscript {
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:8.1.0'
-    }
-}
-
 allprojects {
     repositories {
         google()

google_api_availability/example/android/gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.1-all.zip

google_api_availability/example/android/settings.gradle

@@ -1,15 +1,24 @@
-include ':app'
+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        file("local.properties").withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }()
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
 
-def plugins = new Properties()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
 }
 
-plugins.each { name, path ->
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
-    include ":$name"
-    project(":$name").projectDir = pluginDirectory
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "8.1.0" apply false
 }
+
+include ":app"

google_api_availability/scripts/before_build_apks.sh

@@ -15,9 +15,9 @@ echo y | sdkmanager "extras;android;m2repository" >/dev/null
 echo y | sdkmanager "extras;google;m2repository" >/dev/null
 echo y | sdkmanager "patcher;v4" >/dev/null
 sdkmanager --list
-wget http://services.gradle.org/distributions/gradle-4.1-bin.zip
-unzip -qq gradle-4.1-bin.zip -d $HOME/gradle-4.1
-export GRADLE_HOME=$HOME/gradle-4.1
+wget http://services.gradle.org/distributions/gradle-8.1-bin.zip
+unzip -qq gradle-8.1-bin.zip -d $HOME/gradle-8.1
+export GRADLE_HOME=$HOME/gradle-8.1
 export PATH=$GRADLE_HOME/bin:$PATH
 gradle -v
 git clone --single-branch --branch stable https://github.com/flutter/flutter.git $HOME/flutter

google_api_availability_android/android/build.gradle

@@ -1,17 +1,6 @@
 group 'com.baseflow.googleapiavailability'
 version '1.0-SNAPSHOT'
 
-buildscript {
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:8.1.0'
-    }
-}
-
 rootProject.allprojects {
     repositories {
         google()

google_api_availability_android/android/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

google_api_availability_android/android/settings.gradle

@@ -1 +1,24 @@
-rootProject.name = 'google_api_availability'
+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        file("local.properties").withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }()
+
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "8.1.0" apply false
+}
+
+include ":app"