🚚 Migrate Gradle Plugin DSL

https://docs.flutter.dev/release/breaking-changes/flutter-gradle-plugin-apply

android/app/build.gradle

@@ -1,3 +1,11 @@
+plugins {
+    id "com.android.application"
+    id "kotlin-android"
+    id "dev.flutter.flutter-gradle-plugin"
+    id "com.google.gms.google-services"
+    id "com.google.firebase.crashlytics"
+}
+
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
@@ -21,13 +29,6 @@ if (flutterVersionName == null) {
     flutterVersionName = '1.0'
 }
 
-apply plugin: 'com.android.application'
-apply plugin: 'com.google.gms.google-services'
-apply plugin: 'com.google.firebase.crashlytics'
-apply plugin: 'kotlin-android'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
-
-
 def keystoreProperties = new Properties()
 def keystorePropertiesFile = rootProject.file('key.properties')
 if (keystorePropertiesFile.exists()) {
@@ -83,7 +84,7 @@ flutter {
 }
 
 dependencies {
-  implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+  implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.8.22"
   coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
   // https://github.com/flutter/flutter/issues/110658
   implementation "androidx.window:window:1.0.0"

android/build.gradle

@@ -1,18 +1,3 @@
-buildscript {
-    ext.kotlin_version = '1.8.22'
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:7.1.2'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath 'com.google.gms:google-services:4.3.4'
-        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.8.1'
-    }
-}
-
 allprojects {
     repositories {
         google()

android/settings.gradle

@@ -1,15 +1,27 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
+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
+    }()
 
-include ':app'
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
 
-def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
-def properties = new Properties()
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
 
-assert localPropertiesFile.exists()
-localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "7.1.2" apply false
+    id "org.jetbrains.kotlin.android" version "1.8.22" apply false
+    id "com.google.gms.google-services" version "4.3.4" apply false
+    id "com.google.firebase.crashlytics" version "2.8.1" apply false
+}
 
-def flutterSdkPath = properties.getProperty("flutter.sdk")
-assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
+include ":app"